Moved out of sandbox to prepare for maven-dependency-plugin integration

git-svn-id: https://svn.apache.org/repos/asf/maven/shared/trunk@518839 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..47916a2
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,378 @@
+                                 Apache License

+                           Version 2.0, January 2004

+                        http://www.apache.org/licenses/

+

+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

+

+   1. Definitions.

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+      "You" (or "Your") shall mean an individual or Legal Entity

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+

+   5. Submission of Contributions. Unless You explicitly state otherwise,

+      any Contribution intentionally submitted for inclusion in the Work

+      by You to the Licensor shall be under the terms and conditions of

+      this License, without any additional terms or conditions.

+      Notwithstanding the above, nothing herein shall supersede or modify

+      the terms of any separate license agreement you may have executed

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+

+   6. Trademarks. This License does not grant permission to use the trade

+      names, trademarks, service marks, or product names of the Licensor,

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+   END OF TERMS AND CONDITIONS

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+   APPENDIX: How to apply the Apache License to your work.

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+                                 Apache License

+                           Version 2.0, January 2004

+                        http://www.apache.org/licenses/

+

+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

+

+   1. Definitions.

+

+      "License" shall mean the terms and conditions for use, reproduction,

+      and distribution as defined by Sections 1 through 9 of this document.

+

+      "Licensor" shall mean the copyright owner or entity authorized by

+      the copyright owner that is granting the License.

+

+      "Legal Entity" shall mean the union of the acting entity and all

+      other entities that control, are controlled by, or are under common

+      control with that entity. For the purposes of this definition,

+      "control" means (i) the power, direct or indirect, to cause the

+      direction or management of such entity, whether by contract or

+      otherwise, or (ii) ownership of fifty percent (50%) or more of the

+      outstanding shares, or (iii) beneficial ownership of such entity.

+

+      "You" (or "Your") shall mean an individual or Legal Entity

+      exercising permissions granted by this License.

+

+      "Source" form shall mean the preferred form for making modifications,

+      including but not limited to software source code, documentation

+      source, and configuration files.

+

+      "Object" form shall mean any form resulting from mechanical

+      transformation or translation of a Source form, including but

+      not limited to compiled object code, generated documentation,

+      and conversions to other media types.

+

+      "Work" shall mean the work of authorship, whether in Source or

+      Object form, made available under the License, as indicated by a

+      copyright notice that is included in or attached to the work

+      (an example is provided in the Appendix below).

+

+      "Derivative Works" shall mean any work, whether in Source or Object

+      form, that is based on (or derived from) the Work and for which the

+      editorial revisions, annotations, elaborations, or other modifications

+      represent, as a whole, an original work of authorship. For the purposes

+      of this License, Derivative Works shall not include works that remain

+      separable from, or merely link (or bind by name) to the interfaces of,

+      the Work and Derivative Works thereof.

+

+      "Contribution" shall mean any work of authorship, including

+      the original version of the Work and any modifications or additions

+      to that Work or Derivative Works thereof, that is intentionally

+      submitted to Licensor for inclusion in the Work by the copyright owner

+      or by an individual or Legal Entity authorized to submit on behalf of

+      the copyright owner. For the purposes of this definition, "submitted"

+      means any form of electronic, verbal, or written communication sent

+      to the Licensor or its representatives, including but not limited to

+      communication on electronic mailing lists, source code control systems,

+      and issue tracking systems that are managed by, or on behalf of, the

+      Licensor for the purpose of discussing and improving the Work, but

+      excluding communication that is conspicuously marked or otherwise

+      designated in writing by the copyright owner as "Not a Contribution."

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+      "Contributor" shall mean Licensor and any individual or Legal Entity

+      on behalf of whom a Contribution has been received by Licensor and

+      subsequently incorporated within the Work.

+

+   2. Grant of Copyright License. Subject to the terms and conditions of

+      this License, each Contributor hereby grants to You a perpetual,

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+      copyright license to reproduce, prepare Derivative Works of,

+      publicly display, publicly perform, sublicense, and distribute the

+      Work and such Derivative Works in Source or Object form.

+

+   3. Grant of Patent License. Subject to the terms and conditions of

+      this License, each Contributor hereby grants to You a perpetual,

+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable

+      (except as stated in this section) patent license to make, have made,

+      use, offer to sell, sell, import, and otherwise transfer the Work,

+      where such license applies only to those patent claims licensable

+      by such Contributor that are necessarily infringed by their

+      Contribution(s) alone or by combination of their Contribution(s)

+      with the Work to which such Contribution(s) was submitted. If You

+      institute patent litigation against any entity (including a

+      cross-claim or counterclaim in a lawsuit) alleging that the Work

+      or a Contribution incorporated within the Work constitutes direct

+      or contributory patent infringement, then any patent licenses

+      granted to You under this License for that Work shall terminate

+      as of the date such litigation is filed.

+

+   4. Redistribution. You may reproduce and distribute copies of the

+      Work or Derivative Works thereof in any medium, with or without

+      modifications, and in Source or Object form, provided that You

+      meet the following conditions:

+

+      (a) You must give any other recipients of the Work or

+          Derivative Works a copy of this License; and

+

+      (b) You must cause any modified files to carry prominent notices

+          stating that You changed the files; and

+

+      (c) You must retain, in the Source form of any Derivative Works

+          that You distribute, all copyright, patent, trademark, and

+          attribution notices from the Source form of the Work,

+          excluding those notices that do not pertain to any part of

+          the Derivative Works; and

+

+      (d) If the Work includes a "NOTICE" text file as part of its

+          distribution, then any Derivative Works that You distribute must

+          include a readable copy of the attribution notices contained

+          within such NOTICE file, excluding those notices that do not

+          pertain to any part of the Derivative Works, in at least one

+          of the following places: within a NOTICE text file distributed

+          as part of the Derivative Works; within the Source form or

+          documentation, if provided along with the Derivative Works; or,

+          within a display generated by the Derivative Works, if and

+          wherever such third-party notices normally appear. The contents

+          of the NOTICE file are for informational purposes only and

+          do not modify the License. You may add Your own attribution

+          notices within Derivative Works that You distribute, alongside

+          or as an addendum to the NOTICE text from the Work, provided

+          that such additional attribution notices cannot be construed

+          as modifying the License.

+

+      You may add Your own copyright statement to Your modifications and

+      may provide additional or different license terms and conditions

+      for use, reproduction, or distribution of Your modifications, or

+      for any such Derivative Works as a whole, provided Your use,

+      reproduction, and distribution of the Work otherwise complies with

+      the conditions stated in this License.

+

+   5. Submission of Contributions. Unless You explicitly state otherwise,

+      any Contribution intentionally submitted for inclusion in the Work

+      by You to the Licensor shall be under the terms and conditions of

+      this License, without any additional terms or conditions.

+      Notwithstanding the above, nothing herein shall supersede or modify

+      the terms of any separate license agreement you may have executed

+      with Licensor regarding such Contributions.

+

+   6. Trademarks. This License does not grant permission to use the trade

+      names, trademarks, service marks, or product names of the Licensor,

+      except as required for reasonable and customary use in describing the

+      origin of the Work and reproducing the content of the NOTICE file.

+

+   7. Disclaimer of Warranty. Unless required by applicable law or

+      agreed to in writing, Licensor provides the Work (and each

+      Contributor provides its Contributions) on an "AS IS" BASIS,

+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or

+      implied, including, without limitation, any warranties or conditions

+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A

+      PARTICULAR PURPOSE. You are solely responsible for determining the

+      appropriateness of using or redistributing the Work and assume any

+      risks associated with Your exercise of permissions under this License.

+

+   8. Limitation of Liability. In no event and under no legal theory,

+      whether in tort (including negligence), contract, or otherwise,

+      unless required by applicable law (such as deliberate and grossly

+      negligent acts) or agreed to in writing, shall any Contributor be

+      liable to You for damages, including any direct, indirect, special,

+      incidental, or consequential damages of any character arising as a

+      result of this License or out of the use or inability to use the

+      Work (including but not limited to damages for loss of goodwill,

+      work stoppage, computer failure or malfunction, or any and all

+      other commercial damages or losses), even if such Contributor

+      has been advised of the possibility of such damages.

+

+   9. Accepting Warranty or Additional Liability. While redistributing

+      the Work or Derivative Works thereof, You may choose to offer,

+      and charge a fee for, acceptance of support, warranty, indemnity,

+      or other liability obligations and/or rights consistent with this

+      License. However, in accepting such obligations, You may act only

+      on Your own behalf and on Your sole responsibility, not on behalf

+      of any other Contributor, and only if You agree to indemnify,

+      defend, and hold each Contributor harmless for any liability

+      incurred by, or claims asserted against, such Contributor by reason

+      of your accepting any such warranty or additional liability.

+

+   END OF TERMS AND CONDITIONS

+   
\ No newline at end of file
diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..b5dd759
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,9 @@
+Maven Dependency Plugin

+   Copyright 1999-2006 The Apache Software Foundation

+

+   This product includes software developed at

+   The Apache Software Foundation (http://www.apache.org/).

+   

+   Portions of this software utilize the Plexus Container, API, and

+   Components.  Copyright the Codehaus. The original software is

+   available from http://plexus.codehaus.org/
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
new file mode 100755
index 0000000..f1704d8
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="UTF-8"?>

+	<!--

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ * http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License. 

+ *

+-->

+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

+  <parent>

+  

+    <groupId>org.apache.maven.shared</groupId>

+    <artifactId>maven-shared-components</artifactId>

+    <version>3</version>

+  </parent>

+

+  <modelVersion>4.0.0</modelVersion>

+  <groupId>org.apache.maven.shared</groupId>

+  <artifactId>maven-dependency-analyzer</artifactId>

+  <packaging>jar</packaging>

+  <version>1.0-SNAPSHOT</version>

+

+  <name>Maven Dependency Analyzer</name>

+

+  <build>

+    <plugins>

+      <plugin>

+        <artifactId>maven-compiler-plugin</artifactId>

+        <configuration>

+          <source>1.4</source>

+          <target>1.4</target>

+        </configuration>

+      </plugin>

+      <plugin>

+        <groupId>org.codehaus.plexus</groupId>

+        <artifactId>plexus-maven-plugin</artifactId>

+        <executions>

+          <execution>

+            <goals>

+              <goal>descriptor</goal>

+            </goals>

+          </execution>

+        </executions>

+      </plugin>

+    </plugins>

+		<resources>

+			<!-- Include super-pom defined main/resources

+			Removing this section will break the build.

+			Since we have defined a new build/resources

+			section for the Apache process LICENSE and NOTICE

+			files, this original default section is now

+			required. -->

+			<resource>

+				<directory>${basedir}/src/main/resources</directory>

+			</resource>

+		</resources>

+  </build>

+

+  <dependencies>

+    <dependency>

+      <groupId>asm</groupId>

+      <artifactId>asm</artifactId>

+      <version>3.0_RC1</version>

+    </dependency>

+    <dependency>

+      <groupId>org.codehaus.plexus</groupId>

+      <artifactId>plexus-utils</artifactId>

+      <version>1.1</version>

+    </dependency>

+    <dependency>

+      <groupId>org.apache.maven</groupId>

+      <artifactId>maven-project</artifactId>

+      <version>2.0.5</version>

+    </dependency>

+    <dependency>

+      <groupId>jmock</groupId>

+      <artifactId>jmock</artifactId>

+      <version>1.1.0</version>

+      <scope>test</scope>

+    </dependency>

+  </dependencies>

+

+</project>

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/ClassAnalyzer.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/ClassAnalyzer.java
new file mode 100644
index 0000000..cb4cc2b
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/ClassAnalyzer.java
@@ -0,0 +1,42 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.io.IOException;

+import java.net.URL;

+import java.util.Set;

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ */

+public interface ClassAnalyzer

+{

+    // fields -----------------------------------------------------------------

+

+    String ROLE = ClassAnalyzer.class.getName();

+

+    // public methods ---------------------------------------------------------

+

+    Set analyze( URL url )

+        throws IOException;

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/ClassFileVisitor.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/ClassFileVisitor.java
new file mode 100644
index 0000000..7f37c0d
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/ClassFileVisitor.java
@@ -0,0 +1,33 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.io.InputStream;

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ */

+public interface ClassFileVisitor

+{

+    void visitClass( String className, InputStream in );

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/ClassFileVisitorUtils.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/ClassFileVisitorUtils.java
new file mode 100644
index 0000000..65a2496
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/ClassFileVisitorUtils.java
@@ -0,0 +1,149 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.io.File;

+import java.io.FileInputStream;

+import java.io.IOException;

+import java.io.InputStream;

+import java.net.URI;

+import java.net.URISyntaxException;

+import java.net.URL;

+import java.util.jar.JarEntry;

+import java.util.jar.JarInputStream;

+

+import org.codehaus.plexus.util.DirectoryScanner;

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ */

+public final class ClassFileVisitorUtils

+{

+    // constants --------------------------------------------------------------

+

+    private static final String[] CLASS_INCLUDES = { "**/*.class" };

+

+    // constructors -----------------------------------------------------------

+

+    private ClassFileVisitorUtils()

+    {

+        // private constructor for utility class

+    }

+

+    // public methods ---------------------------------------------------------

+

+    public static void accept( URL url, ClassFileVisitor visitor )

+        throws IOException

+    {

+        if ( url.getPath().endsWith( ".jar" ) )

+        {

+            acceptJar( url, visitor );

+        }

+        else if ( url.getProtocol().equals( "file" ) )

+        {

+            try

+            {

+                File file = new File( new URI( url.toString() ).getPath() );

+

+                if ( file.isDirectory() )

+                {

+                    acceptDirectory( file, visitor );

+                }

+                else

+                {

+                    throw new IllegalArgumentException( "Cannot accept visitor on URL: " + url );

+                }

+            }

+            catch ( URISyntaxException exception )

+            {

+                IllegalArgumentException e = new IllegalArgumentException( "Cannot accept visitor on URL: " + url );

+                e.initCause( exception );

+                throw e;

+            }

+        }

+        else

+        {

+            throw new IllegalArgumentException( "Cannot accept visitor on URL: " + url );

+        }

+    }

+

+    // private methods --------------------------------------------------------

+

+    private static void acceptJar( URL url, ClassFileVisitor visitor )

+        throws IOException

+    {

+        JarInputStream in = new JarInputStream( url.openStream() );

+

+        JarEntry entry = null;

+

+        while ( ( entry = in.getNextJarEntry() ) != null )

+        {

+            String name = entry.getName();

+

+            if ( name.endsWith( ".class" ) )

+                visitClass( name, in, visitor );

+        }

+

+        in.close();

+    }

+

+    private static void acceptDirectory( File directory, ClassFileVisitor visitor )

+        throws IOException

+    {

+        if ( !directory.isDirectory() )

+            throw new IllegalArgumentException( "File is not a directory" );

+

+        DirectoryScanner scanner = new DirectoryScanner();

+

+        scanner.setBasedir( directory );

+        scanner.setIncludes( CLASS_INCLUDES );

+

+        scanner.scan();

+

+        String[] paths = scanner.getIncludedFiles();

+

+        for ( int i = 0; i < paths.length; i++ )

+        {

+            String path = paths[i].replace( File.separatorChar, '/' );

+

+            File file = new File( directory, path );

+            FileInputStream in = new FileInputStream( file );

+

+            visitClass( path, in, visitor );

+

+            in.close();

+        }

+    }

+

+    private static void visitClass( String path, InputStream in, ClassFileVisitor visitor )

+    {

+        if ( !path.endsWith( ".class" ) )

+            throw new IllegalArgumentException( "Path is not a class" );

+

+        String className = path.substring( 0, path.length() - 6 );

+

+        className = className.replace( '/', '.' );

+

+        visitor.visitClass( className, in );

+    }

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/CollectorClassFileVisitor.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/CollectorClassFileVisitor.java
new file mode 100644
index 0000000..e2ee10b
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/CollectorClassFileVisitor.java
@@ -0,0 +1,63 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.io.InputStream;

+import java.util.HashSet;

+import java.util.Set;

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ */

+public class CollectorClassFileVisitor

+    implements ClassFileVisitor

+{

+    // fields -----------------------------------------------------------------

+

+    private final Set classes;

+

+    // constructors -----------------------------------------------------------

+

+    public CollectorClassFileVisitor()

+    {

+        classes = new HashSet();

+    }

+

+    // ClassFileVisitor methods -----------------------------------------------

+

+    /*

+     * @see org.apache.maven.shared.dependency.analyzer.ClassFileVisitor#visitClass(java.lang.String,

+     *      java.io.InputStream)

+     */

+    public void visitClass( String className, InputStream in )

+    {

+        classes.add( className );

+    }

+

+    // public methods ---------------------------------------------------------

+

+    public Set getClasses()

+    {

+        return classes;

+    }

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/DefaultClassAnalyzer.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/DefaultClassAnalyzer.java
new file mode 100644
index 0000000..5f70ed8
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/DefaultClassAnalyzer.java
@@ -0,0 +1,50 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.io.IOException;

+import java.net.URL;

+import java.util.Set;

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ * @plexus.component role="org.apache.maven.shared.dependency.analyzer.ClassAnalyzer"

+ */

+public class DefaultClassAnalyzer

+    implements ClassAnalyzer

+{

+    // ClassAnalyzer methods --------------------------------------------------

+

+    /*

+     * @see org.apache.maven.shared.dependency.analyzer.ClassAnalyzer#analyze(java.net.URL)

+     */

+    public Set analyze( URL url )

+        throws IOException

+    {

+        CollectorClassFileVisitor visitor = new CollectorClassFileVisitor();

+

+        ClassFileVisitorUtils.accept( url, visitor );

+

+        return visitor.getClasses();

+    }

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/DefaultProjectDependencyAnalyzer.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/DefaultProjectDependencyAnalyzer.java
new file mode 100644
index 0000000..12313e0
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/DefaultProjectDependencyAnalyzer.java
@@ -0,0 +1,163 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.io.File;

+import java.io.IOException;

+import java.net.URL;

+import java.util.HashMap;

+import java.util.HashSet;

+import java.util.Iterator;

+import java.util.Map;

+import java.util.Set;

+

+import org.apache.maven.artifact.Artifact;

+import org.apache.maven.project.MavenProject;

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ * @plexus.component role="org.apache.maven.shared.dependency.analyzer.ProjectDependencyAnalyzer"

+ */

+public class DefaultProjectDependencyAnalyzer

+    implements ProjectDependencyAnalyzer

+{

+    // fields -----------------------------------------------------------------

+

+    /**

+     * ClassAnalyzer

+     * 

+     * @plexus.requirement

+     */

+    private ClassAnalyzer classAnalyzer;

+

+    /**

+     * DependencyAnalyzer

+     * 

+     * @plexus.requirement

+     */

+    private DependencyAnalyzer dependencyAnalyzer;

+

+    // ProjectDependencyAnalyzer methods --------------------------------------

+

+    /*

+     * @see org.apache.maven.shared.dependency.analyzer.ProjectDependencyAnalyzer#analyze(org.apache.maven.project.MavenProject)

+     */

+    public ProjectDependencyAnalysis analyze( MavenProject project )

+        throws ProjectDependencyAnalyzerException

+    {

+        try

+        {

+            Map artifactClassMap = buildArtifactClassMap( project );

+

+            Set dependencyClasses = buildDependencyClasses( project );

+

+            Set declaredArtifacts = project.getDependencyArtifacts();

+

+            Set usedArtifacts = new HashSet();

+

+            for ( Iterator dependencyIterator = dependencyClasses.iterator(); dependencyIterator.hasNext(); )

+            {

+                String className = (String) dependencyIterator.next();

+

+                Artifact artifact = findArtifactForClassName( artifactClassMap, className );

+

+                if ( artifact != null )

+                    usedArtifacts.add( artifact );

+            }

+

+            Set usedDeclaredArtifacts = new HashSet( declaredArtifacts );

+            usedDeclaredArtifacts.retainAll( usedArtifacts );

+

+            Set usedUndeclaredArtifacts = new HashSet( usedArtifacts );

+            usedUndeclaredArtifacts.removeAll( declaredArtifacts );

+

+            Set unusedDeclaredArtifacts = new HashSet( declaredArtifacts );

+            unusedDeclaredArtifacts.removeAll( usedArtifacts );

+

+            return new ProjectDependencyAnalysis( usedDeclaredArtifacts, usedUndeclaredArtifacts,

+                                                  unusedDeclaredArtifacts );

+        }

+        catch ( IOException exception )

+        {

+            throw new ProjectDependencyAnalyzerException( "Cannot analyze dependencies", exception );

+        }

+    }

+

+    // private methods --------------------------------------------------------

+

+    private Map buildArtifactClassMap( MavenProject project )

+        throws IOException

+    {

+        Map artifactClassMap = new HashMap();

+

+        Set dependencyArtifacts = project.getArtifacts();

+

+        for ( Iterator iterator = dependencyArtifacts.iterator(); iterator.hasNext(); )

+        {

+            Artifact artifact = (Artifact) iterator.next();

+

+            File file = artifact.getFile();

+

+            if ( file != null )

+            {

+                URL url = file.toURL();

+

+                Set classes = classAnalyzer.analyze( url );

+

+                artifactClassMap.put( artifact, classes );

+            }

+        }

+

+        return artifactClassMap;

+    }

+

+    private Set buildDependencyClasses( MavenProject project )

+        throws IOException

+    {

+        String buildDirectory = project.getBuild().getDirectory();

+

+        URL buildDirectoryURL = new File( buildDirectory ).toURI().toURL();

+

+        return dependencyAnalyzer.analyze( buildDirectoryURL );

+    }

+

+    private Artifact findArtifactForClassName( Map artifactClassMap, String className )

+    {

+        for ( Iterator artifactIterator = artifactClassMap.keySet().iterator(); artifactIterator.hasNext(); )

+        {

+            Artifact artifact = (Artifact) artifactIterator.next();

+

+            Set artifactClassNames = (Set) artifactClassMap.get( artifact );

+

+            for ( Iterator classNameIterator = artifactClassNames.iterator(); classNameIterator.hasNext(); )

+            {

+                String artifactClassName = (String) classNameIterator.next();

+

+                if ( artifactClassName.equals( className ) )

+                    return artifact;

+            }

+        }

+

+        return null;

+    }

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/DependencyAnalyzer.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/DependencyAnalyzer.java
new file mode 100644
index 0000000..1b6ee1d
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/DependencyAnalyzer.java
@@ -0,0 +1,42 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.io.IOException;

+import java.net.URL;

+import java.util.Set;

+

+/**

+ * DependencyAnalyzer

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ */

+public interface DependencyAnalyzer

+{

+    // fields -----------------------------------------------------------------

+

+    String ROLE = DependencyAnalyzer.class.getName();

+

+    // public methods ---------------------------------------------------------

+

+    Set analyze( URL url )

+        throws IOException;

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalysis.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalysis.java
new file mode 100644
index 0000000..c8052a2
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalysis.java
@@ -0,0 +1,66 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.util.Set;

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ */

+public class ProjectDependencyAnalysis

+{

+    // fields -----------------------------------------------------------------

+

+    private final Set usedDeclaredArtifacts;

+

+    private final Set usedUndeclaredArtifacts;

+

+    private final Set unusedDeclaredArtifacts;

+

+    // constructors -----------------------------------------------------------

+

+    public ProjectDependencyAnalysis( Set usedDeclaredArtifacts, Set usedUndeclaredArtifacts,

+                                      Set unusedDeclaredArtifacts )

+    {

+        this.usedDeclaredArtifacts = usedDeclaredArtifacts;

+        this.usedUndeclaredArtifacts = usedUndeclaredArtifacts;

+        this.unusedDeclaredArtifacts = unusedDeclaredArtifacts;

+    }

+

+    // public methods ---------------------------------------------------------

+

+    public Set getUsedDeclaredArtifacts()

+    {

+        return usedDeclaredArtifacts;

+    }

+

+    public Set getUsedUndeclaredArtifacts()

+    {

+        return usedUndeclaredArtifacts;

+    }

+

+    public Set getUnusedDeclaredArtifacts()

+    {

+        return unusedDeclaredArtifacts;

+    }

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalyzer.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalyzer.java
new file mode 100644
index 0000000..a82d812
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalyzer.java
@@ -0,0 +1,40 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import org.apache.maven.project.MavenProject;

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ */

+public interface ProjectDependencyAnalyzer

+{

+    // fields -----------------------------------------------------------------

+

+    String ROLE = ProjectDependencyAnalyzer.class.getName();

+

+    // public methods ---------------------------------------------------------

+

+    ProjectDependencyAnalysis analyze( MavenProject project )

+        throws ProjectDependencyAnalyzerException;

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalyzerException.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalyzerException.java
new file mode 100644
index 0000000..45e9de3
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalyzerException.java
@@ -0,0 +1,49 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ */

+public class ProjectDependencyAnalyzerException

+    extends Exception

+{

+    // constants --------------------------------------------------------------

+

+    /**

+     * The serialisation unique ID.

+     */

+    private static final long serialVersionUID = -5954447543668196977L;

+

+    // constructors -----------------------------------------------------------

+

+    public ProjectDependencyAnalyzerException( String message )

+    {

+        super( message );

+    }

+

+    public ProjectDependencyAnalyzerException( String message, Throwable cause )

+    {

+        super( message, cause );

+    }

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/ASMDependencyAnalyzer.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/ASMDependencyAnalyzer.java
new file mode 100644
index 0000000..c31501e
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/ASMDependencyAnalyzer.java
@@ -0,0 +1,53 @@
+package org.apache.maven.shared.dependency.analyzer.asm;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.io.IOException;

+import java.net.URL;

+import java.util.Set;

+

+import org.apache.maven.shared.dependency.analyzer.ClassFileVisitorUtils;

+import org.apache.maven.shared.dependency.analyzer.DependencyAnalyzer;

+

+/**

+ * ASMDependencyAnalyzer 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ * @plexus.component role="org.apache.maven.shared.dependency.analyzer.DependencyAnalyzer"

+ */

+public class ASMDependencyAnalyzer

+    implements DependencyAnalyzer

+{

+    // DependencyAnalyzer methods ---------------------------------------------

+

+    /*

+     * @see org.apache.maven.shared.dependency.analyzer.DependencyAnalyzer#analyze(java.net.URL)

+     */

+    public Set analyze( URL url )

+        throws IOException

+    {

+        DependencyClassFileVisitor visitor = new DependencyClassFileVisitor();

+

+        ClassFileVisitorUtils.accept( url, visitor );

+

+        return visitor.getDependencies();

+    }

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/DependencyClassFileVisitor.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/DependencyClassFileVisitor.java
new file mode 100644
index 0000000..98018f0
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/DependencyClassFileVisitor.java
@@ -0,0 +1,79 @@
+package org.apache.maven.shared.dependency.analyzer.asm;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.io.IOException;

+import java.io.InputStream;

+import java.util.HashSet;

+import java.util.Set;

+

+import org.apache.maven.shared.dependency.analyzer.ClassFileVisitor;

+import org.objectweb.asm.ClassReader;

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ */

+public class DependencyClassFileVisitor

+    implements ClassFileVisitor

+{

+    // fields -----------------------------------------------------------------

+

+    private final Set dependencies;

+

+    // constructors -----------------------------------------------------------

+

+    public DependencyClassFileVisitor()

+    {

+        dependencies = new HashSet();

+    }

+

+    // ClassFileVisitor methods -----------------------------------------------

+

+    /*

+     * @see org.apache.maven.shared.dependency.analyzer.ClassFileVisitor#visitClass(java.lang.String,

+     *      java.io.InputStream)

+     */

+    public void visitClass( String className, InputStream in )

+    {

+        try

+        {

+            ClassReader reader = new ClassReader( in );

+            DependencyVisitor visitor = new DependencyVisitor();

+

+            reader.accept( visitor, 0 );

+

+            dependencies.addAll( visitor.getClasses() );

+        }

+        catch ( IOException exception )

+        {

+            exception.printStackTrace();

+        }

+    }

+

+    // public methods ---------------------------------------------------------

+

+    public Set getDependencies()

+    {

+        return dependencies;

+    }

+}

diff --git a/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/DependencyVisitor.java b/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/DependencyVisitor.java
new file mode 100644
index 0000000..18dae24
--- /dev/null
+++ b/src/main/java/org/apache/maven/shared/dependency/analyzer/asm/DependencyVisitor.java
@@ -0,0 +1,585 @@
+package org.apache.maven.shared.dependency.analyzer.asm;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.objectweb.asm.AnnotationVisitor;
+import org.objectweb.asm.Attribute;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.FieldVisitor;
+import org.objectweb.asm.Label;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Type;
+import org.objectweb.asm.signature.SignatureReader;
+import org.objectweb.asm.signature.SignatureVisitor;
+
+/**
+ * Inspired by <code>org.objectweb.asm.depend.DependencyVisitor</code> in the ASM dependencies example.
+ * 
+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
+ * @version $Id$
+ */
+public class DependencyVisitor
+    implements AnnotationVisitor, SignatureVisitor, ClassVisitor, FieldVisitor, MethodVisitor
+{
+    // fields -----------------------------------------------------------------
+
+    private final Set classes;
+
+    // constructors -----------------------------------------------------------
+
+    public DependencyVisitor()
+    {
+        classes = new HashSet();
+    }
+
+    // ClassVisitor methods ---------------------------------------------------
+
+    /*
+     * @see org.objectweb.asm.ClassVisitor#visit(int, int, java.lang.String, java.lang.String, java.lang.String,
+     *      java.lang.String[])
+     */
+    public void visit( final int version, final int access, final String name, final String signature,
+                       final String superName, final String[] interfaces )
+    {
+        if ( signature == null )
+        {
+            addName( superName );
+            addNames( interfaces );
+        }
+        else
+        {
+            addSignature( signature );
+        }
+    }
+
+    /*
+     * @see org.objectweb.asm.ClassVisitor#visitSource(java.lang.String, java.lang.String)
+     */
+    public void visitSource( final String source, final String debug )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.ClassVisitor#visitOuterClass(java.lang.String, java.lang.String, java.lang.String)
+     */
+    public void visitOuterClass( final String owner, final String name, final String desc )
+    {
+        // addName(owner);
+        // addMethodDesc(desc);
+    }
+
+    /*
+     * @see org.objectweb.asm.ClassVisitor#visitAnnotation(java.lang.String, boolean)
+     */
+    public AnnotationVisitor visitAnnotation( final String desc, final boolean visible )
+    {
+        addDesc( desc );
+        
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.ClassVisitor#visitAttribute(org.objectweb.asm.Attribute)
+     */
+    public void visitAttribute( final Attribute attr )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.ClassVisitor#visitInnerClass(java.lang.String, java.lang.String, java.lang.String, int)
+     */
+    public void visitInnerClass( final String name, final String outerName, final String innerName, final int access )
+    {
+        // addName( outerName);
+        // addName( innerName);
+    }
+
+    /*
+     * @see org.objectweb.asm.ClassVisitor#visitField(int, java.lang.String, java.lang.String, java.lang.String,
+     *      java.lang.Object)
+     */
+    public FieldVisitor visitField( final int access, final String name, final String desc, final String signature,
+                                    final Object value )
+    {
+        if ( signature == null )
+            addDesc( desc );
+        else
+            addTypeSignature( signature );
+
+        if ( value instanceof Type )
+            addType( (Type) value );
+
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.ClassVisitor#visitMethod(int, java.lang.String, java.lang.String, java.lang.String,
+     *      java.lang.String[])
+     */
+    public MethodVisitor visitMethod( final int access, final String name, final String desc, final String signature,
+                                      final String[] exceptions )
+    {
+        if ( signature == null )
+            addMethodDesc( desc );
+        else
+            addSignature( signature );
+
+        addNames( exceptions );
+
+        return this;
+    }
+
+    // MethodVisitor methods --------------------------------------------------
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitAnnotationDefault()
+     */
+    public AnnotationVisitor visitAnnotationDefault()
+    {
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitParameterAnnotation(int, java.lang.String, boolean)
+     */
+    public AnnotationVisitor visitParameterAnnotation( final int parameter, final String desc, final boolean visible )
+    {
+        addDesc( desc );
+
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitCode()
+     */
+    public void visitCode()
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitFrame(int, int, java.lang.Object[], int, java.lang.Object[])
+     */
+    public void visitFrame( final int type, final int nLocal, final Object[] local, final int nStack,
+                            final Object[] stack )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitInsn(int)
+     */
+    public void visitInsn( final int opcode )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitIntInsn(int, int)
+     */
+    public void visitIntInsn( final int opcode, final int operand )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitVarInsn(int, int)
+     */
+    public void visitVarInsn( final int opcode, final int var )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitTypeInsn(int, java.lang.String)
+     */
+    public void visitTypeInsn( final int opcode, final String desc )
+    {
+        if ( desc.charAt( 0 ) == '[' )
+            addDesc( desc );
+        else
+            addName( desc );
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitFieldInsn(int, java.lang.String, java.lang.String, java.lang.String)
+     */
+    public void visitFieldInsn( final int opcode, final String owner, final String name, final String desc )
+    {
+        addName( owner );
+        addDesc( desc );
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitMethodInsn(int, java.lang.String, java.lang.String, java.lang.String)
+     */
+    public void visitMethodInsn( final int opcode, final String owner, final String name, final String desc )
+    {
+        addName( owner );
+        addMethodDesc( desc );
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitJumpInsn(int, org.objectweb.asm.Label)
+     */
+    public void visitJumpInsn( final int opcode, final Label label )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitLabel(org.objectweb.asm.Label)
+     */
+    public void visitLabel( final Label label )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitLdcInsn(java.lang.Object)
+     */
+    public void visitLdcInsn( final Object cst )
+    {
+        if ( cst instanceof Type )
+            addType( (Type) cst );
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitIincInsn(int, int)
+     */
+    public void visitIincInsn( final int var, final int increment )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitTableSwitchInsn(int, int, org.objectweb.asm.Label,
+     *      org.objectweb.asm.Label[])
+     */
+    public void visitTableSwitchInsn( final int min, final int max, final Label dflt, final Label[] labels )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitLookupSwitchInsn(org.objectweb.asm.Label, int[],
+     *      org.objectweb.asm.Label[])
+     */
+    public void visitLookupSwitchInsn( final Label dflt, final int[] keys, final Label[] labels )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitMultiANewArrayInsn(java.lang.String, int)
+     */
+    public void visitMultiANewArrayInsn( final String desc, final int dims )
+    {
+        addDesc( desc );
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitTryCatchBlock(org.objectweb.asm.Label, org.objectweb.asm.Label,
+     *      org.objectweb.asm.Label, java.lang.String)
+     */
+    public void visitTryCatchBlock( final Label start, final Label end, final Label handler, final String type )
+    {
+        addName( type );
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitLocalVariable(java.lang.String, java.lang.String, java.lang.String,
+     *      org.objectweb.asm.Label, org.objectweb.asm.Label, int)
+     */
+    public void visitLocalVariable( final String name, final String desc, final String signature, final Label start,
+                                    final Label end, final int index )
+    {
+        if ( signature == null )
+        {
+            addDesc( desc );
+        }
+        else
+        {
+            addTypeSignature( signature );
+        }
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitLineNumber(int, org.objectweb.asm.Label)
+     */
+    public void visitLineNumber( final int line, final Label start )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.MethodVisitor#visitMaxs(int, int)
+     */
+    public void visitMaxs( final int maxStack, final int maxLocals )
+    {
+        // no-op
+    }
+
+    // AnnotationVisitor methods ----------------------------------------------
+
+    /*
+     * @see org.objectweb.asm.AnnotationVisitor#visit(java.lang.String, java.lang.Object)
+     */
+    public void visit( final String name, final Object value )
+    {
+        if ( value instanceof Type )
+            addType( (Type) value );
+    }
+
+    /*
+     * @see org.objectweb.asm.AnnotationVisitor#visitEnum(java.lang.String, java.lang.String, java.lang.String)
+     */
+    public void visitEnum( final String name, final String desc, final String value )
+    {
+        addDesc( desc );
+    }
+
+    /*
+     * @see org.objectweb.asm.AnnotationVisitor#visitAnnotation(java.lang.String, java.lang.String)
+     */
+    public AnnotationVisitor visitAnnotation( final String name, final String desc )
+    {
+        addDesc( desc );
+
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.AnnotationVisitor#visitArray(java.lang.String)
+     */
+    public AnnotationVisitor visitArray( final String name )
+    {
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.AnnotationVisitor#visitEnd()
+     */
+    public void visitEnd()
+    {
+        // no-op
+    }
+
+    // SignatureVisitor methods -----------------------------------------------
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitFormalTypeParameter(java.lang.String)
+     */
+    public void visitFormalTypeParameter( final String name )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitClassBound()
+     */
+    public SignatureVisitor visitClassBound()
+    {
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitInterfaceBound()
+     */
+    public SignatureVisitor visitInterfaceBound()
+    {
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitSuperclass()
+     */
+    public SignatureVisitor visitSuperclass()
+    {
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitInterface()
+     */
+    public SignatureVisitor visitInterface()
+    {
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitParameterType()
+     */
+    public SignatureVisitor visitParameterType()
+    {
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitReturnType()
+     */
+    public SignatureVisitor visitReturnType()
+    {
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitExceptionType()
+     */
+    public SignatureVisitor visitExceptionType()
+    {
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitBaseType(char)
+     */
+    public void visitBaseType( final char descriptor )
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitTypeVariable(java.lang.String)
+     */
+    public void visitTypeVariable( final String name )
+    {
+        // TODO: verify
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitArrayType()
+     */
+    public SignatureVisitor visitArrayType()
+    {
+        return this;
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitClassType(java.lang.String)
+     */
+    public void visitClassType( final String name )
+    {
+        addName( name );
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitInnerClassType(java.lang.String)
+     */
+    public void visitInnerClassType( final String name )
+    {
+        addName( name );
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitTypeArgument()
+     */
+    public void visitTypeArgument()
+    {
+        // no-op
+    }
+
+    /*
+     * @see org.objectweb.asm.signature.SignatureVisitor#visitTypeArgument(char)
+     */
+    public SignatureVisitor visitTypeArgument( final char wildcard )
+    {
+        return this;
+    }
+
+    // public methods ---------------------------------------------------------
+
+    public Set getClasses()
+    {
+        return classes;
+    }
+
+    // private methods --------------------------------------------------------
+
+    private void addName( String name )
+    {
+        if ( name == null )
+            return;
+
+        // decode arrays
+        if ( name.startsWith( "[L" ) && name.endsWith( ";" ) )
+            name = name.substring( 2, name.length() - 1 );
+
+        // decode internal representation
+        name = name.replace( '/', '.' );
+
+        classes.add( name );
+    }
+
+    private void addNames( final String[] names )
+    {
+        if ( names == null )
+            return;
+        
+        for ( int i = 0; i < names.length; i++ )
+            addName( names[i] );
+    }
+
+    private void addDesc( final String desc )
+    {
+        addType( Type.getType( desc ) );
+    }
+
+    private void addMethodDesc( final String desc )
+    {
+        addType( Type.getReturnType( desc ) );
+        
+        Type[] types = Type.getArgumentTypes( desc );
+
+        for ( int i = 0; i < types.length; i++ )
+            addType( types[i] );
+    }
+
+    private void addType( final Type t )
+    {
+        switch ( t.getSort() )
+        {
+            case Type.ARRAY:
+                addType( t.getElementType() );
+                break;
+
+            case Type.OBJECT:
+                addName( t.getClassName().replace( '.', '/' ) );
+                break;
+        }
+    }
+
+    private void addSignature( final String signature )
+    {
+        if ( signature != null )
+            new SignatureReader( signature ).accept( this );
+    }
+
+    private void addTypeSignature( final String signature )
+    {
+        if ( signature != null )
+            new SignatureReader( signature ).acceptType( this );
+    }
+}
diff --git a/src/test/java/org/apache/maven/shared/dependency/analyzer/AbstractFileTest.java b/src/test/java/org/apache/maven/shared/dependency/analyzer/AbstractFileTest.java
new file mode 100644
index 0000000..9acfcb6
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/dependency/analyzer/AbstractFileTest.java
@@ -0,0 +1,90 @@
+package org.apache.maven.shared.dependency.analyzer;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.jar.JarOutputStream;
+import java.util.zip.ZipEntry;
+
+import org.codehaus.plexus.util.FileUtils;
+import org.codehaus.plexus.util.IOUtil;
+import org.jmock.MockObjectTestCase;
+
+/**
+ * 
+ * 
+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
+ * @version $Id$
+ */
+public abstract class AbstractFileTest extends MockObjectTestCase
+{
+    // protected methods ------------------------------------------------------
+
+    protected File createJar() throws IOException
+    {
+        File file = File.createTempFile( "test", ".jar" );
+        file.deleteOnExit();
+
+        return file;
+    }
+
+    protected File createDir() throws IOException
+    {
+        File file = File.createTempFile( "test", null );
+        file.delete();
+
+        if ( !file.mkdir() )
+            throw new IOException( "Cannot create temporary directory: " + file );
+
+        return file;
+    }
+
+    protected File createFile( File parent, String child, String data ) throws IOException
+    {
+        File file = new File( parent, child );
+
+        OutputStream out = new FileOutputStream( file );
+        IOUtil.copy( data, out );
+        out.close();
+
+        return file;
+    }
+
+    protected File mkdirs( File parent, String child ) throws IOException
+    {
+        File dir = new File( parent, child );
+
+        FileUtils.forceMkdir( dir );
+
+        return dir;
+    }
+
+    protected void writeEntry( JarOutputStream out, String path, String data ) throws IOException
+    {
+        out.putNextEntry( new ZipEntry( path ) );
+
+        byte[] bytes = data.getBytes( "UTF-8" );
+
+        out.write( bytes, 0, bytes.length );
+    }
+}
diff --git a/src/test/java/org/apache/maven/shared/dependency/analyzer/ClassFileVisitorUtilsTest.java b/src/test/java/org/apache/maven/shared/dependency/analyzer/ClassFileVisitorUtilsTest.java
new file mode 100644
index 0000000..72fe2d7
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/dependency/analyzer/ClassFileVisitorUtilsTest.java
@@ -0,0 +1,163 @@
+package org.apache.maven.shared.dependency.analyzer;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.net.URL;
+import java.util.jar.JarOutputStream;
+
+import org.codehaus.plexus.util.FileUtils;
+import org.jmock.Mock;
+
+/**
+ * Tests <code>ClassFileVisitorUtils</code>.
+ * 
+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
+ * @version $Id$
+ * @see ClassFileVisitorUtils
+ */
+public class ClassFileVisitorUtilsTest
+    extends AbstractFileTest
+{
+    // tests ------------------------------------------------------------------
+
+    public void testAcceptJar()
+        throws IOException
+    {
+        File file = createJar();
+        JarOutputStream out = new JarOutputStream( new FileOutputStream( file ) );
+        writeEntry( out, "a/b/c.class", "class a.b.c" );
+        writeEntry( out, "x/y/z.class", "class x.y.z" );
+        out.close();
+
+        Mock mock = mock( ClassFileVisitor.class );
+        expectVisitClass( mock, "a.b.c", "class a.b.c" );
+        expectVisitClass( mock, "x.y.z", "class x.y.z" );
+
+        ClassFileVisitorUtils.accept( file.toURI().toURL(), (ClassFileVisitor) mock.proxy() );
+
+        mock.verify();
+    }
+
+    public void testAcceptJarWithNonClassEntry()
+        throws IOException
+    {
+        File file = createJar();
+        JarOutputStream out = new JarOutputStream( new FileOutputStream( file ) );
+        writeEntry( out, "a/b/c.jpg", "jpeg a.b.c" );
+        out.close();
+
+        Mock mock = mock( ClassFileVisitor.class );
+
+        ClassFileVisitorUtils.accept( file.toURI().toURL(), (ClassFileVisitor) mock.proxy() );
+
+        mock.verify();
+    }
+
+    public void testAcceptDir()
+        throws IOException
+    {
+        File dir = createDir();
+
+        File abDir = mkdirs( dir, "a/b" );
+        createFile( abDir, "c.class", "class a.b.c" );
+
+        File xyDir = mkdirs( dir, "x/y" );
+        createFile( xyDir, "z.class", "class x.y.z" );
+
+        Mock mock = mock( ClassFileVisitor.class );
+        expectVisitClass( mock, "a.b.c", "class a.b.c" );
+        expectVisitClass( mock, "x.y.z", "class x.y.z" );
+
+        ClassFileVisitorUtils.accept( dir.toURI().toURL(), (ClassFileVisitor) mock.proxy() );
+
+        FileUtils.deleteDirectory( dir );
+
+        mock.verify();
+    }
+
+    public void testAcceptDirWithNonClassFile()
+        throws IOException
+    {
+        File dir = createDir();
+
+        File abDir = mkdirs( dir, "a/b" );
+        createFile( abDir, "c.jpg", "jpeg a.b.c" );
+
+        Mock mock = mock( ClassFileVisitor.class );
+
+        ClassFileVisitorUtils.accept( dir.toURI().toURL(), (ClassFileVisitor) mock.proxy() );
+
+        FileUtils.deleteDirectory( dir );
+
+        mock.verify();
+    }
+
+    public void testAcceptWithFile()
+        throws IOException
+    {
+        File file = File.createTempFile( "test", ".class" );
+        file.deleteOnExit();
+
+        Mock mock = mock( ClassFileVisitor.class );
+
+        URL url = file.toURI().toURL();
+
+        try
+        {
+            ClassFileVisitorUtils.accept( url, (ClassFileVisitor) mock.proxy() );
+        }
+        catch ( IllegalArgumentException exception )
+        {
+            assertEquals( "Cannot accept visitor on URL: " + url, exception.getMessage() );
+        }
+    }
+
+    public void testAcceptWithUnsupportedScheme()
+        throws IOException
+    {
+        Mock mock = mock( ClassFileVisitor.class );
+
+        URL url = new URL( "http://localhost/" );
+
+        try
+        {
+            ClassFileVisitorUtils.accept( url, (ClassFileVisitor) mock.proxy() );
+        }
+        catch ( IllegalArgumentException exception )
+        {
+            assertEquals( "Cannot accept visitor on URL: " + url, exception.getMessage() );
+        }
+    }
+
+    // private methods --------------------------------------------------------
+
+    private void expectVisitClass( Mock mock, String className, String data )
+    {
+        mock.expects( atLeastOnce() ).method( "visitClass" ).with( eq( className ), in( data ) );
+    }
+
+    private InputStreamConstraint in( String expected )
+    {
+        return new InputStreamConstraint( expected );
+    }
+}
diff --git a/src/test/java/org/apache/maven/shared/dependency/analyzer/CollectorClassFileVisitorTest.java b/src/test/java/org/apache/maven/shared/dependency/analyzer/CollectorClassFileVisitorTest.java
new file mode 100644
index 0000000..4c25aa8
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/dependency/analyzer/CollectorClassFileVisitorTest.java
@@ -0,0 +1,67 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.util.HashSet;

+import java.util.Set;

+

+import org.apache.maven.shared.dependency.analyzer.CollectorClassFileVisitor;

+

+import junit.framework.TestCase;

+

+/**

+ * Tests <code>CollectorClassFileVisitor</code>.

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ * @see CollectorClassFileVisitor

+ */

+public class CollectorClassFileVisitorTest

+    extends TestCase

+{

+    // fields -----------------------------------------------------------------

+

+    private CollectorClassFileVisitor visitor;

+

+    // TestCase thods ---------------------------------------------------------

+

+    /*

+     * @see junit.framework.TestCase#setUp()

+     */

+    protected void setUp()

+        throws Exception

+    {

+        visitor = new CollectorClassFileVisitor();

+    }

+

+    // tests ------------------------------------------------------------------

+

+    public void testVisitClass()

+    {

+        visitor.visitClass( "a.b.c", null );

+        visitor.visitClass( "x.y.z", null );

+

+        Set expected = new HashSet();

+        expected.add( "a.b.c" );

+        expected.add( "x.y.z" );

+

+        assertEquals( expected, visitor.getClasses() );

+    }

+}

diff --git a/src/test/java/org/apache/maven/shared/dependency/analyzer/DefaultClassAnalyzerTest.java b/src/test/java/org/apache/maven/shared/dependency/analyzer/DefaultClassAnalyzerTest.java
new file mode 100644
index 0000000..89602ef
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/dependency/analyzer/DefaultClassAnalyzerTest.java
@@ -0,0 +1,57 @@
+package org.apache.maven.shared.dependency.analyzer;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.jar.JarOutputStream;
+
+/**
+ * Tests <code>DefaultClassAnalyzer</code>.
+ * 
+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
+ * @version $Id$
+ * @see DefaultClassAnalyzer
+ */
+public class DefaultClassAnalyzerTest extends AbstractFileTest
+{
+    // tests ------------------------------------------------------------------
+
+    public void testAnalyzeWithJar() throws IOException
+    {
+        File file = createJar();
+        JarOutputStream out = new JarOutputStream( new FileOutputStream( file ) );
+        writeEntry( out, "a/b/c.class", "class a.b.c" );
+        writeEntry( out, "x/y/z.class", "class x.y.z" );
+        out.close();
+
+        Set expectedClasses = new HashSet();
+        expectedClasses.add( "a.b.c" );
+        expectedClasses.add( "x.y.z" );
+
+        DefaultClassAnalyzer analyzer = new DefaultClassAnalyzer();
+        Set actualClasses = analyzer.analyze( file.toURI().toURL() );
+
+        assertEquals( expectedClasses, actualClasses );
+    }
+}
diff --git a/src/test/java/org/apache/maven/shared/dependency/analyzer/InputStreamConstraint.java b/src/test/java/org/apache/maven/shared/dependency/analyzer/InputStreamConstraint.java
new file mode 100644
index 0000000..9481c88
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/dependency/analyzer/InputStreamConstraint.java
@@ -0,0 +1,100 @@
+package org.apache.maven.shared.dependency.analyzer;

+

+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you under the Apache License, Version 2.0 (the

+ * "License"); you may not use this file except in compliance

+ * with the License.  You may obtain a copy of the License at

+ *

+ *  http://www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing,

+ * software distributed under the License is distributed on an

+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

+ * KIND, either express or implied.  See the License for the

+ * specific language governing permissions and limitations

+ * under the License.

+ */

+

+import java.io.IOException;

+import java.io.InputStream;

+

+import org.codehaus.plexus.util.IOUtil;

+import org.jmock.core.Constraint;

+

+/**

+ * 

+ * 

+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>

+ * @version $Id$

+ */

+public class InputStreamConstraint

+    implements Constraint

+{

+    // constants --------------------------------------------------------------

+

+    private static final String DEFAULT_CHARSET_NAME = "UTF-8";

+

+    // fields -----------------------------------------------------------------

+

+    private final String expected;

+

+    private final String charsetName;

+

+    // constructors -----------------------------------------------------------

+

+    public InputStreamConstraint( String expected )

+    {

+        this( expected, DEFAULT_CHARSET_NAME );

+    }

+

+    public InputStreamConstraint( String expected, String charsetName )

+    {

+        this.expected = expected;

+        this.charsetName = charsetName;

+    }

+

+    // Constraint methods -----------------------------------------------------

+

+    /*

+     * @see org.jmock.core.Constraint#eval(java.lang.Object)

+     */

+    public boolean eval( Object object )

+    {

+        if ( !( object instanceof InputStream ) )

+        {

+            return false;

+        }

+

+        InputStream in = (InputStream) object;

+

+        try

+        {

+            String actual = IOUtil.toString( in, charsetName );

+

+            return expected.equals( actual );

+        }

+        catch ( IOException exception )

+        {

+            return false;

+        }

+    }

+

+    // SelfDescribing methods -------------------------------------------------

+

+    /*

+     * @see org.jmock.core.SelfDescribing#describeTo(java.lang.StringBuffer)

+     */

+    public StringBuffer describeTo( StringBuffer buffer )

+    {

+        buffer.append( "in(" );

+        buffer.append( "\"" ).append( expected ).append( "\"" );

+        buffer.append( "," ).append( charsetName );

+        buffer.append( ")" );

+

+        return buffer;

+    }

+}

diff --git a/src/test/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalysisTest.java b/src/test/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalysisTest.java
new file mode 100644
index 0000000..f6a9c0c
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalysisTest.java
@@ -0,0 +1,51 @@
+package org.apache.maven.shared.dependency.analyzer;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.util.HashSet;
+import java.util.Set;
+
+import junit.framework.TestCase;
+
+/**
+ * Tests <code>ProjectDependencyAnalysis</code>.
+ * 
+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
+ * @version $Id$
+ * @see ProjectDependencyAnalysis
+ */
+public class ProjectDependencyAnalysisTest extends TestCase
+{
+    // tests ------------------------------------------------------------------
+
+    public void testConstructor()
+    {
+        Set usedDeclaredArtifacts = new HashSet();
+        Set usedUndeclaredArtifacts = new HashSet();
+        Set unusedDeclaredArtifacts = new HashSet();
+
+        ProjectDependencyAnalysis analysis =
+            new ProjectDependencyAnalysis( usedDeclaredArtifacts, usedUndeclaredArtifacts, unusedDeclaredArtifacts );
+
+        assertEquals( usedDeclaredArtifacts, analysis.getUsedDeclaredArtifacts() );
+        assertEquals( usedUndeclaredArtifacts, analysis.getUsedUndeclaredArtifacts() );
+        assertEquals( unusedDeclaredArtifacts, analysis.getUnusedDeclaredArtifacts() );
+    }
+}
diff --git a/src/test/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalyzerExceptionTest.java b/src/test/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalyzerExceptionTest.java
new file mode 100644
index 0000000..4a3fa7b
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/dependency/analyzer/ProjectDependencyAnalyzerExceptionTest.java
@@ -0,0 +1,50 @@
+package org.apache.maven.shared.dependency.analyzer;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import junit.framework.TestCase;
+
+/**
+ * Tests <code>ProjectDependencyAnalyzerException</code>.
+ * 
+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
+ * @version $Id$
+ * @see ProjectDependencyAnalyzerException
+ */
+public class ProjectDependencyAnalyzerExceptionTest extends TestCase
+{
+    // tests ------------------------------------------------------------------
+
+    public void testConstructor()
+    {
+        ProjectDependencyAnalyzerException exception = new ProjectDependencyAnalyzerException( "a" );
+
+        assertEquals( "a", exception.getMessage() );
+    }
+
+    public void testConstructorWithThrowable()
+    {
+        Throwable throwable = new Exception();
+        ProjectDependencyAnalyzerException exception = new ProjectDependencyAnalyzerException( "a", throwable );
+
+        assertEquals( "a", exception.getMessage() );
+        assertEquals( throwable, exception.getCause() );
+    }
+}
diff --git a/src/test/java/org/apache/maven/shared/dependency/analyzer/asm/DependencyVisitorTest.java b/src/test/java/org/apache/maven/shared/dependency/analyzer/asm/DependencyVisitorTest.java
new file mode 100644
index 0000000..acc4059
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/dependency/analyzer/asm/DependencyVisitorTest.java
@@ -0,0 +1,722 @@
+package org.apache.maven.shared.dependency.analyzer.asm;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+import junit.framework.TestCase;
+
+import org.objectweb.asm.Label;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+
+/**
+ * Tests <code>DependencyVisitor</code>.
+ * 
+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
+ * @version $Id$
+ * @see DependencyVisitor
+ */
+public class DependencyVisitorTest extends TestCase
+{
+    // TODO: finish tests
+
+    // fields -----------------------------------------------------------------
+
+    private DependencyVisitor visitor;
+
+    // TestCase methods -------------------------------------------------------
+
+    /*
+     * @see junit.framework.TestCase#setUp()
+     */
+    protected void setUp() throws Exception
+    {
+        visitor = new DependencyVisitor();
+    }
+
+    // visit tests ------------------------------------------------------------
+
+    public void testVisitWithDefaultSuperclass()
+    {
+        // class a.b.c
+        visitor.visit( 50, 0, "a/b/c", null, "java/lang/Object", null );
+
+        assertClasses( "java.lang.Object" );
+    }
+
+    public void testVisitWithSuperclass()
+    {
+        // class a.b.c
+        visitor.visit( 50, 0, "a/b/c", null, "x/y/z", null );
+
+        assertClasses( "x.y.z" );
+    }
+
+    public void testVisitWithInterface()
+    {
+        // class a.b.c implements x.y.z
+        visitor.visit( 50, 0, "a/b/c", null, "java/lang/Object", new String[] { "x/y/z" } );
+
+        assertClasses( "java.lang.Object", "x.y.z" );
+    }
+
+    public void testVisitWithInterfaces()
+    {
+        // class a.b.c implements p.q.r, x.y.z
+        visitor.visit( 50, 0, "a/b/c", null, "java/lang/Object", new String[] { "p/q/r", "x/y/z" } );
+
+        assertClasses( "java.lang.Object", "p.q.r", "x.y.z" );
+    }
+
+    public void testVisitWithUnboundedClassTypeParameter()
+    {
+        // class a.b.c<T>
+        String signature = "<T:Ljava/lang/Object;>Ljava/lang/Object;";
+
+        visitor.visit( 50, 0, "a/b/c", signature, "java/lang/Object", null );
+
+        assertClasses( "java.lang.Object" );
+    }
+
+    public void testVisitWithBoundedClassTypeParameter()
+    {
+        // class a.b.c<T extends x.y.z>
+        String signature = "<T:Lx/y/z;>Ljava/lang/Object;";
+
+        visitor.visit( 50, 0, "a/b/c", signature, "java/lang/Object", null );
+
+        assertClasses( "java.lang.Object", "x.y.z" );
+    }
+
+    public void testVisitWithBoundedClassTypeParameters()
+    {
+        // class a.b.c<K extends p.q.r, V extends x.y.z>
+        String signature = "<K:Lp/q/r;V:Lx/y/z;>Ljava/lang/Object;";
+
+        visitor.visit( 50, 0, "a/b/c", signature, "java/lang/Object", null );
+
+        assertClasses( "java.lang.Object", "p.q.r", "x.y.z" );
+    }
+
+    public void testVisitWithGenericInterface()
+    {
+        // class a.b.c implements p.q.r<x.y.z>
+        String signature = "Ljava/lang/Object;Lp/q/r<Lx/y/z;>;";
+
+        visitor.visit( 50, 0, "a/b/c", signature, "java/lang/Object", new String[] { "p.q.r" } );
+
+        assertClasses( "java.lang.Object", "p.q.r", "x.y.z" );
+    }
+
+    public void testVisitWithInterfaceBound()
+    {
+        // class a.b.c<T> implements x.y.z<T>
+        String signature = "<T:Ljava/lang/Object;>Ljava/lang/Object;Lx/y/z<TT;>;";
+
+        visitor.visit( 50, 0, "a/b/c", signature, "java/lang/Object", new String[] { "x.y.z" } );
+
+        assertClasses( "java.lang.Object", "x.y.z" );
+    }
+
+    // visitSource tests ------------------------------------------------------
+
+    public void testVisitSource()
+    {
+        visitor.visitSource( null, null );
+
+        assertNoClasses();
+    }
+
+    // visitOuterClass tests --------------------------------------------------
+
+    public void testVisitOuterClass()
+    {
+        // class a.b.c
+        // {
+        //     class ...
+        //     {
+        //     }
+        // }
+        visitor.visitOuterClass( "a/b/c", null, null );
+
+        assertNoClasses();
+    }
+
+    public void testVisitOuterClassInMethod()
+    {
+        // class a.b.c
+        // {
+        //     x.y.z x(p.q.r p)
+        //     {
+        //         class ...
+        //         {
+        //         }
+        //     }
+        // }
+        visitor.visitOuterClass( "a/b/c", "x", "(Lp/q/r;)Lx/y/z;" );
+
+        assertNoClasses();
+    }
+
+    // visitAnnotation tests --------------------------------------------------
+
+    public void testVisitAnnotation()
+    {
+        assertVisitor( visitor.visitAnnotation( "La/b/c;", false ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitAnnotationWithRuntimeVisibility()
+    {
+        assertVisitor( visitor.visitAnnotation( "La/b/c;", true ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    // visitAttribute tests ---------------------------------------------------
+
+    public void testVisitAttribute()
+    {
+        visitor.visitAttribute( new MockAttribute( "a" ) );
+
+        assertNoClasses();
+    }
+
+    // visitInnerClass tests --------------------------------------------------
+
+    public void testVisitInnerClass()
+    {
+        // TODO: ensure innerName is correct
+
+        // class a.b.c { class x.y.z { } }
+        visitor.visitInnerClass( "x/y/z", "a/b/c", "z", 0 );
+
+        assertNoClasses();
+    }
+
+    public void testVisitInnerClassAnonymous()
+    {
+        // class a.b.c { new class x.y.z { } }
+        visitor.visitInnerClass( "x/y/z$1", "a/b/c", null, 0 );
+
+        assertNoClasses();
+    }
+
+    // visitField tests -------------------------------------------------------
+
+    public void testVisitField()
+    {
+        // a.b.c a
+        assertVisitor( visitor.visitField( 0, "a", "La/b/c;", null, null ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    // TODO: determine actual use of default values
+    // public void testVisitFieldWithValue()
+    // {
+    // }
+
+    public void testVisitFieldArray()
+    {
+        // a.b.c[] a
+        assertVisitor( visitor.visitField( 0, "a", "[La/b/c;", null, null ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitFieldGeneric()
+    {
+        // a.b.c<x.y.z> a
+        assertVisitor( visitor.visitField( 0, "a", "La/b/c;", "La/b/c<Lx/y/z;>;", null ) );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    // visitMethod tests ------------------------------------------------------
+
+    public void testVisitMethod()
+    {
+        // void a()
+        assertVisitor( visitor.visitMethod( 0, "a", "()V", null, null ) );
+
+        assertNoClasses();
+    }
+
+    public void testVisitMethodWithPrimitiveArgument()
+    {
+        // void a(int)
+        assertVisitor( visitor.visitMethod( 0, "a", "(I)V", null, null ) );
+
+        assertNoClasses();
+    }
+
+    public void testVisitMethodWithPrimitiveArrayArgument()
+    {
+        // void a(int[])
+        assertVisitor( visitor.visitMethod( 0, "a", "([I)V", null, null ) );
+
+        assertNoClasses();
+    }
+
+    public void testVisitMethodWithObjectArgument()
+    {
+        // void a(a.b.c)
+        assertVisitor( visitor.visitMethod( 0, "a", "(La/b/c;)V", null, null ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitMethodWithObjectArguments()
+    {
+        // void a(a.b.c, x.y.z)
+        assertVisitor( visitor.visitMethod( 0, "a", "(La/b/c;Lx/y/z;)V", null, null ) );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    public void testVisitMethodWithObjectArrayArgument()
+    {
+        // void a(a.b.c[])
+        assertVisitor( visitor.visitMethod( 0, "a", "([La/b/c;)V", null, null ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitMethodWithGenericArgument()
+    {
+        // void a(a.b.c<x.y.z>)
+        assertVisitor( visitor.visitMethod( 0, "a", "(La/b/c;)V", "(La/b/c<Lx/y/z;>;)V", null ) );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    public void testVisitMethodWithPrimitiveReturnType()
+    {
+        // int a()
+        assertVisitor( visitor.visitMethod( 0, "a", "()I", null, null ) );
+
+        assertNoClasses();
+    }
+
+    public void testVisitMethodWithPrimitiveArrayReturnType()
+    {
+        // int[] a()
+        assertVisitor( visitor.visitMethod( 0, "a", "()[I", null, null ) );
+
+        assertNoClasses();
+    }
+
+    public void testVisitMethodWithObjectReturnType()
+    {
+        // a.b.c a()
+        assertVisitor( visitor.visitMethod( 0, "a", "()La/b/c;", null, null ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitMethodWithObjectArrayReturnType()
+    {
+        // a.b.c[] a()
+        assertVisitor( visitor.visitMethod( 0, "a", "()[La/b/c;", null, null ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitMethodWithException()
+    {
+        // void a() throws a.b.c
+        assertVisitor( visitor.visitMethod( 0, "a", "()V", null, new String[] { "a/b/c" } ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitMethodWithExceptions()
+    {
+        // void a() throws a.b.c, x.y.z
+        assertVisitor( visitor.visitMethod( 0, "a", "()V", null, new String[] { "a/b/c", "x/y/z" } ) );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    // visitAnnotationDefault tests -------------------------------------------
+
+    public void testVisitAnnotationDefault()
+    {
+        assertVisitor( visitor.visitAnnotationDefault() );
+        assertNoClasses();
+    }
+
+    // visitParameterAnnotation tests -------------------------------------------
+
+    public void testVisitParameterAnnotation()
+    {
+        // @a.b.c
+        assertVisitor( visitor.visitParameterAnnotation( 0, "La/b/c;", false ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    // visitCode tests --------------------------------------------------------
+
+    public void testVisitCode()
+    {
+        visitor.visitCode();
+
+        assertNoClasses();
+    }
+
+    // visitFrame tests -------------------------------------------------------
+
+    public void testVisitFrame()
+    {
+        visitor.visitFrame( Opcodes.F_NEW, 0, new Object[0], 0, new Object[0] );
+
+        assertNoClasses();
+    }
+
+    // visitInsn tests --------------------------------------------------------
+
+    public void testVisitInsn()
+    {
+        visitor.visitInsn( Opcodes.NOP );
+
+        assertNoClasses();
+    }
+
+    // visitIntInsn tests -----------------------------------------------------
+
+    public void testVisitIntInsn()
+    {
+        visitor.visitIntInsn( Opcodes.BIPUSH, 0 );
+
+        assertNoClasses();
+    }
+
+    // visitVarInsn tests -----------------------------------------------------
+
+    public void testVisitVarInsn()
+    {
+        visitor.visitVarInsn( Opcodes.ILOAD, 0 );
+
+        assertNoClasses();
+    }
+
+    // visitTypeInsn tests ----------------------------------------------------
+
+    public void testVisitTypeInsn()
+    {
+        visitor.visitTypeInsn( Opcodes.NEW, "a/b/c" );
+
+        assertClasses( "a.b.c" );
+    }
+
+    // visitFieldInsn tests ---------------------------------------------------
+
+    public void testVisitFieldInsnWithPrimitive()
+    {
+        visitor.visitFieldInsn( Opcodes.GETFIELD, "a/b/c", "x", "I" );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitFieldInsnWithObject()
+    {
+        visitor.visitFieldInsn( Opcodes.GETFIELD, "a/b/c", "x", "Lx/y/z;" );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    // visitMethodInsn tests --------------------------------------------------
+
+    public void testVisitMethodInsn()
+    {
+        visitor.visitMethodInsn( Opcodes.INVOKEVIRTUAL, "a/b/c", "x", "()V" );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitMethodInsnWithPrimitiveArgument()
+    {
+        visitor.visitMethodInsn( Opcodes.INVOKEVIRTUAL, "a/b/c", "x", "(I)V" );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitMethodInsnWithPrimitiveArrayArgument()
+    {
+        visitor.visitMethodInsn( Opcodes.INVOKEVIRTUAL, "a/b/c", "x", "([I)V" );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitMethodInsnWithObjectArgument()
+    {
+        visitor.visitMethodInsn( Opcodes.INVOKEVIRTUAL, "a/b/c", "x", "(Lx/y/z;)V" );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    public void testVisitMethodInsnWithObjectArguments()
+    {
+        visitor.visitMethodInsn( Opcodes.INVOKEVIRTUAL, "a/b/c", "x", "(Lp/q/r;Lx/y/z;)V" );
+
+        assertClasses( "a.b.c", "p.q.r", "x.y.z" );
+    }
+
+    public void testVisitMethodInsnWithObjectArrayArgument()
+    {
+        visitor.visitMethodInsn( Opcodes.INVOKEVIRTUAL, "a/b/c", "x", "([Lx/y/z;)V" );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    public void testVisitMethodInsnWithPrimitiveReturnType()
+    {
+        visitor.visitMethodInsn( Opcodes.INVOKEVIRTUAL, "a/b/c", "x", "()I" );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitMethodInsnWithPrimitiveArrayReturnType()
+    {
+        visitor.visitMethodInsn( Opcodes.INVOKEVIRTUAL, "a/b/c", "x", "()[I" );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitMethodInsnWithObjectReturnType()
+    {
+        visitor.visitMethodInsn( Opcodes.INVOKEVIRTUAL, "a/b/c", "x", "()Lx/y/z;" );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    public void testVisitMethodInsnWithObjectArrayReturnType()
+    {
+        visitor.visitMethodInsn( Opcodes.INVOKEVIRTUAL, "a/b/c", "x", "()[Lx/y/z;" );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    // visitJumpInsn tests ----------------------------------------------------
+
+    public void testVisitJumpInsn()
+    {
+        visitor.visitJumpInsn( Opcodes.IFEQ, new Label() );
+
+        assertNoClasses();
+    }
+
+    // visitLabel tests -------------------------------------------------------
+
+    public void testVisitLabel()
+    {
+        visitor.visitLabel( new Label() );
+
+        assertNoClasses();
+    }
+
+    // visitLdcInsn tests -----------------------------------------------------
+
+    public void testVisitLdcInsnWithNonType()
+    {
+        visitor.visitLdcInsn( "a" );
+
+        assertNoClasses();
+    }
+
+    public void testVisitLdcInsnWithPrimitiveType()
+    {
+        visitor.visitLdcInsn( Type.INT_TYPE );
+
+        assertNoClasses();
+    }
+
+    public void testVisitLdcInsnWithObjectType()
+    {
+        visitor.visitLdcInsn( Type.getType( "La/b/c;" ) );
+
+        assertClasses( "a.b.c" );
+    }
+
+    // visitIincInsn tests ----------------------------------------------------
+
+    public void testVisitIincInsn()
+    {
+        visitor.visitIincInsn( 0, 1 );
+
+        assertNoClasses();
+    }
+
+    // visitTableSwitchInsn tests ---------------------------------------------
+
+    public void testVisitTableSwitchInsn()
+    {
+        visitor.visitTableSwitchInsn( 0, 1, new Label(), new Label[] { new Label() } );
+
+        assertNoClasses();
+    }
+
+    // visitLookupSwitchInsn tests --------------------------------------------
+
+    public void testVisitLookupSwitchInsn()
+    {
+        visitor.visitLookupSwitchInsn( new Label(), new int[] { 0 }, new Label[] { new Label() } );
+
+        assertNoClasses();
+    }
+
+    // visitMultiANewArrayInsn tests ------------------------------------------
+
+    public void testVisitMultiANewArrayInsnWithPrimitive()
+    {
+        visitor.visitMultiANewArrayInsn( "I", 2 );
+
+        assertNoClasses();
+    }
+
+    public void testVisitMultiANewArrayInsnWithObject()
+    {
+        visitor.visitMultiANewArrayInsn( "La/b/c;", 2 );
+
+        assertClasses( "a.b.c" );
+    }
+
+    // visitTryCatchBlock tests -----------------------------------------------
+
+    public void testVisitTryCatchBlock()
+    {
+        visitor.visitTryCatchBlock( new Label(), new Label(), new Label(), "a/b/c" );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitTryCatchBlockForFinally()
+    {
+        visitor.visitTryCatchBlock( new Label(), new Label(), new Label(), null );
+
+        assertNoClasses();
+    }
+
+    // visitLocalVariable tests -----------------------------------------------
+
+    public void testVisitLocalVariableWithPrimitive()
+    {
+        visitor.visitLocalVariable( "a", "I", null, new Label(), new Label(), 0 );
+
+        assertNoClasses();
+    }
+
+    public void testVisitLocalVariableWithPrimitiveArray()
+    {
+        visitor.visitLocalVariable( "a", "[I", null, new Label(), new Label(), 0 );
+
+        assertNoClasses();
+    }
+
+    public void testVisitLocalVariableWithObject()
+    {
+        visitor.visitLocalVariable( "a", "La/b/c;", null, new Label(), new Label(), 0 );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitLocalVariableWithObjectArray()
+    {
+        visitor.visitLocalVariable( "a", "[La/b/c;", null, new Label(), new Label(), 0 );
+
+        assertClasses( "a.b.c" );
+    }
+
+    public void testVisitLocalVariableWithGenericObject()
+    {
+        visitor.visitLocalVariable( "a", "La/b/c;", "La/b/c<Lx/y/z;>;", new Label(), new Label(), 0 );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    public void testVisitLocalVariableWithGenericObjectArray()
+    {
+        visitor.visitLocalVariable( "a", "La/b/c;", "[La/b/c<Lx/y/z;>;", new Label(), new Label(), 0 );
+
+        assertClasses( "a.b.c", "x.y.z" );
+    }
+
+    // visitLineNumber tests --------------------------------------------------
+
+    public void testVisitLineNumber()
+    {
+        visitor.visitLineNumber( 0, new Label() );
+
+        assertNoClasses();
+    }
+
+    // visitMaxs tests --------------------------------------------------------
+
+    public void testVisitMaxs()
+    {
+        visitor.visitMaxs( 0, 0 );
+
+        assertNoClasses();
+    }
+
+    // private methods --------------------------------------------------------
+
+    private void assertVisitor( Object actualVisitor )
+    {
+        assertEquals( visitor, actualVisitor );
+    }
+
+    private void assertNoClasses()
+    {
+        assertClasses( Collections.EMPTY_SET );
+    }
+
+    private void assertClasses( String element )
+    {
+        assertClasses( Collections.singleton( element ) );
+    }
+
+    private void assertClasses( String expectedClass1, String expectedClass2 )
+    {
+        assertClasses( new String[] { expectedClass1, expectedClass2 } );
+    }
+
+    private void assertClasses( String expectedClass1, String expectedClass2, String expectedClass3 )
+    {
+        assertClasses( new String[] { expectedClass1, expectedClass2, expectedClass3 } );
+    }
+
+    private void assertClasses( String[] expectedClasses )
+    {
+        assertClasses( new HashSet( Arrays.asList( expectedClasses ) ) );
+    }
+
+    private void assertClasses( Set expectedClasses )
+    {
+        assertEquals( expectedClasses, visitor.getClasses() );
+    }
+}
diff --git a/src/test/java/org/apache/maven/shared/dependency/analyzer/asm/MockAttribute.java b/src/test/java/org/apache/maven/shared/dependency/analyzer/asm/MockAttribute.java
new file mode 100644
index 0000000..7ee2dda
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/dependency/analyzer/asm/MockAttribute.java
@@ -0,0 +1,38 @@
+package org.apache.maven.shared.dependency.analyzer.asm;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import org.objectweb.asm.Attribute;
+
+/**
+ * A simple ASM <code>Attribute</code> for use in tests.
+ * 
+ * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
+ * @version $Id$
+ */
+public class MockAttribute extends Attribute
+{
+    // constructors -----------------------------------------------------------
+
+    public MockAttribute( String type )
+    {
+        super( type );
+    }
+}