[SUREFIRE-1695] Support multiple inheritance of @Categories
diff --git a/surefire-its/src/test/java/org/apache/maven/surefire/its/jiras/Surefire995CategoryInheritanceIT.java b/surefire-its/src/test/java/org/apache/maven/surefire/its/jiras/Surefire995CategoryInheritanceIT.java
index d776724..c571556 100644
--- a/surefire-its/src/test/java/org/apache/maven/surefire/its/jiras/Surefire995CategoryInheritanceIT.java
+++ b/surefire-its/src/test/java/org/apache/maven/surefire/its/jiras/Surefire995CategoryInheritanceIT.java
@@ -19,68 +19,140 @@
  * under the License.
  */
 
+import org.apache.maven.it.VerificationException;
+import org.apache.maven.surefire.its.fixture.OutputValidator;
 import org.apache.maven.surefire.its.fixture.SurefireJUnit4IntegrationTestCase;
 import org.apache.maven.surefire.its.fixture.SurefireLauncher;
 import org.junit.Test;
 
+import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.is;
+
 /**
  * @author <a href="mailto:tibordigana@apache.org">Tibor Digana (tibor17)</a>
  * @see <a href="https://issues.apache.org/jira/browse/SUREFIRE-995">SUREFIRE-995</a>
  * @since 2.18.1
  */
-public class Surefire995CategoryInheritanceIT
-    extends SurefireJUnit4IntegrationTestCase
+public class Surefire995CategoryInheritanceIT extends SurefireJUnit4IntegrationTestCase
 {
 
     @Test
     public void negativeTestShouldRunAllCategories()
     {
         unpack()
-            .setTestToRun( "Special*Test" )
-            .executeTest()
-            .verifyErrorFree( 3 );
+                .setTestToRun( "Special*Test" )
+                .executeTest()
+                .verifyErrorFree( 3 );
     }
 
     @Test
     public void junit411ShouldRunExplicitCategory()
     {
-        unpack()
-            .addGoal( "-Ppositive-tests" )
-            .sysProp( "version.junit", "4.11" )
-            .executeTest()
-            .verifyErrorFree( 1 )
-            .verifyTextInLog( "CategorizedTest#a" );
+        final OutputValidator outputValidator = unpack()
+                .addGoal( "-Ppositive-tests" )
+                .sysProp( "version.junit", "4.11" )
+                .executeTest();
+
+        outputValidator
+                .verifyErrorFree( 1 )
+                .verifyTextInLog( "CategorizedTest#a" );
     }
 
     @Test
     public void junit411ShouldExcludeExplicitCategory()
     {
-        unpack()
-            .addGoal( "-Ppositive-tests-excluded-categories" )
-            .sysProp( "version.junit", "4.11" )
-            .executeTest()
-            .verifyErrorFree( 2 );
+        final OutputValidator outputValidator = unpack()
+                .addGoal( "-Ppositive-tests-excluded-categories" )
+                .sysProp( "version.junit", "4.11" )
+                .executeTest();
+        // SpecialCategorizedTest inherits the excluded annotation but should still run as
+        // until junit 4.11, the Category annotation is not inherited
+        outputValidator
+                .verifyTextInLog( "SpecialCategorizedTest#b" )
+                .verifyErrorFree( 16 );
     }
 
     @Test
     public void junit412ShouldRunInheritedCategory()
     {
         unpack()
-            .setTestToRun( "Special*Test" )
-            .addGoal( "-Ppositive-tests" )
-            .executeTest()
-            .verifyErrorFree( 2 );
+                .setTestToRun( "Special*Test" )
+                .addGoal( "-Ppositive-tests" )
+                .executeTest()
+                .verifyErrorFree( 2 );
     }
 
     @Test
     public void junit412ShouldExcludeInheritedCategory()
     {
         unpack()
-            .setTestToRun( "Special*Test" )
-            .addGoal( "-Ppositive-tests-excluded-categories" )
-            .executeTest()
-            .verifyErrorFree( 1 )
-            .verifyTextInLog( "SpecialNonCategoryTest#test" );
+                .setTestToRun( "Special*Test" )
+                .addGoal( "-Ppositive-tests-excluded-categories" )
+                .executeTest()
+                .verifyErrorFree( 1 )
+                .verifyTextInLog( "SpecialNonCategoryTest#test" );
+    }
+
+    @Test
+    public void junit411ShouldIgnoreInheritedCategories() throws VerificationException
+    {
+        // GIVEN a project using junit 4.11
+        final OutputValidator outputValidator = unpack()
+                .addGoal( "-Ppositive-tests-included-and-excluded-categories" )
+                .sysProp( "version.junit", "4.11" )
+                // AND the tests marked with CategoryB are marked for execution
+                .setGroups( "jiras.surefire955.group.marker.CategoryB" )
+                // WHEN the tests are executed
+                .executeTest();
+
+        // THEN only the tests in classes directly annotated should be executed
+        outputValidator
+                // Test runs when the category is present in the concrete class
+                .verifyTextInLog( "Running jiras.surefire955.group.BBCTest" )
+                .verifyTextInLog( "BBCTest#bbc" )
+                .verifyTextInLog( "AbstractBCTest#pb" )
+                .verifyTextInLog( "AbstractCTest#pc" )
+                .verifyTextInLog( "Running jiras.surefire955.group.BTest" )
+                .verifyTextInLog( "BTest#b" )
+                // Test does not run when there is no category in the concrete class
+                .assertThatLogLine( containsString( "BCTest#bc" ), is( 0 ) )
+                .assertThatLogLine( containsString( "ABCTest#abc" ), is( 0 ) )
+                .verifyErrorFree( 4 );
+    }
+
+    @Test
+    public void junit412ShouldExecuteInheritedCategories() throws VerificationException
+    {
+        // GIVEN a project using junit 4.12
+        final OutputValidator outputValidator = unpack()
+                .addGoal( "-Ppositive-tests-included-and-excluded-categories" )
+                .sysProp( "version.junit", "4.12" )
+                // AND the tests marked with CategoryB are marked for execution
+                .setGroups( "jiras.surefire955.group.marker.CategoryB" )
+                // WHEN the tests are executed
+                .executeTest();
+
+        // THEN the tests in classes directly marked with the CategoryB
+        outputValidator
+                .verifyErrorFree( 10 )
+                .verifyTextInLog( "Running jiras.surefire955.group.BBCTest" )
+                // AND Test runs when an already existing category is added in the concrete class
+                .verifyTextInLog( "BBCTest#bbc" )
+                .verifyTextInLog( "AbstractBCTest#pb" )
+                .verifyTextInLog( "AbstractCTest#pc" )
+                .verifyTextInLog( "Running jiras.surefire955.group.BTest" )
+                .verifyTextInLog( "BTest#b" )
+                // AND the tests in classes inheriting the CategoryB category should be executed
+                .verifyTextInLog( "Running jiras.surefire955.group.ABCTest" )
+                // AND Test runs when the concrete class has an additional (not excluded) category
+                .verifyTextInLog( "ABCTest#abc" )
+                .verifyTextInLog( "AbstractBCTest#pb" )
+                .verifyTextInLog( "AbstractCTest#pc" )
+                .verifyTextInLog( "Running jiras.surefire955.group.BCTest" )
+                // AND Test runs when there is no category in the concrete class
+                .verifyTextInLog( "BCTest#bc" )
+                .verifyTextInLog( "AbstractBCTest#pb" )
+                .verifyTextInLog( "AbstractCTest#pc" );
     }
 
     private SurefireLauncher unpack()
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/pom.xml b/surefire-its/src/test/resources/surefire-995-categoryInheritance/pom.xml
index 4662f24..f59e133 100644
--- a/surefire-its/src/test/resources/surefire-995-categoryInheritance/pom.xml
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/pom.xml
@@ -86,5 +86,8 @@
         </plugins>
       </build>
     </profile>
-  </profiles>
-</project>
+    <profile>
+      <id>positive-tests-included-and-excluded-categories</id>
+     </profile>
+   </profiles>
+ </project>
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/ABCTest.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/ABCTest.java
new file mode 100644
index 0000000..1d37ff5
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/ABCTest.java
@@ -0,0 +1,36 @@
+package jiras.surefire955.group;
+
+/*
+ * 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 jiras.surefire955.group.marker.CategoryA;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+@Category( CategoryA.class )
+public class ABCTest extends jiras.surefire955.group.AbstractBCTest
+{
+
+    @Test
+    public void abc()
+    {
+        System.out.println( "ABCTest#abc" );
+    }
+
+}
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/ATest.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/ATest.java
new file mode 100644
index 0000000..0fef6c8
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/ATest.java
@@ -0,0 +1,36 @@
+package jiras.surefire955.group;
+
+/*
+ * 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 jiras.surefire955.group.marker.CategoryA;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+@Category( CategoryA.class )
+public class ATest
+{
+
+    @Test
+    public void a()
+    {
+        System.out.println( "ATest#a" );
+    }
+
+}
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/AbstractBCTest.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/AbstractBCTest.java
new file mode 100644
index 0000000..8511917
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/AbstractBCTest.java
@@ -0,0 +1,37 @@
+package jiras.surefire955.group;
+
+/*
+ * 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 jiras.surefire955.group.marker.CategoryB;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+
+@Category( CategoryB.class )
+public abstract class AbstractBCTest extends jiras.surefire955.group.AbstractCTest
+{
+
+    @Test
+    public void pb()
+    {
+        System.out.println( "AbstractBCTest#pb" );
+    }
+
+}
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/AbstractCTest.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/AbstractCTest.java
new file mode 100644
index 0000000..34745c6
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/AbstractCTest.java
@@ -0,0 +1,37 @@
+package jiras.surefire955.group;
+
+/*
+ * 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 jiras.surefire955.group.marker.CategoryC;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+
+@Category( CategoryC.class )
+public abstract class AbstractCTest
+{
+
+    @Test
+    public void pc()
+    {
+        System.out.println( "AbstractCTest#pc" );
+    }
+
+}
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/BBCTest.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/BBCTest.java
new file mode 100644
index 0000000..0fbe803
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/BBCTest.java
@@ -0,0 +1,36 @@
+package jiras.surefire955.group;
+
+/*
+ * 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 jiras.surefire955.group.marker.CategoryB;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+@Category( CategoryB.class )
+public class BBCTest extends jiras.surefire955.group.AbstractBCTest
+{
+
+    @Test
+    public void bbc()
+    {
+        System.out.println( "BBCTest#bbc" );
+    }
+
+}
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/BCTest.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/BCTest.java
new file mode 100644
index 0000000..e99c2b6
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/BCTest.java
@@ -0,0 +1,33 @@
+package jiras.surefire955.group;
+
+/*
+ * 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.junit.Test;
+
+public class BCTest extends jiras.surefire955.group.AbstractBCTest
+{
+
+    @Test
+    public void bc()
+    {
+        System.out.println( "BCTest#bc" );
+    }
+
+}
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/BTest.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/BTest.java
new file mode 100644
index 0000000..d0bf839
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/BTest.java
@@ -0,0 +1,37 @@
+package jiras.surefire955.group;
+
+/*
+ * 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 jiras.surefire955.group.marker.CategoryB;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+
+@Category( CategoryB.class )
+public class BTest
+{
+
+    @Test
+    public void b()
+    {
+        System.out.println( "BTest#b" );
+    }
+
+}
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/UncategorizedTest.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/UncategorizedTest.java
new file mode 100644
index 0000000..06f8554
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/UncategorizedTest.java
@@ -0,0 +1,33 @@
+package jiras.surefire955.group;
+
+/*
+ * 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.junit.Test;
+
+public class UncategorizedTest
+{
+
+    @Test
+    public void a()
+    {
+        System.out.println( "Uncategorized#a" );
+    }
+
+}
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/marker/CategoryA.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/marker/CategoryA.java
new file mode 100644
index 0000000..cfda982
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/marker/CategoryA.java
@@ -0,0 +1,24 @@
+package jiras.surefire955.group.marker;
+
+/*
+ * 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.
+ */
+
+public interface CategoryA
+{
+}
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/marker/CategoryB.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/marker/CategoryB.java
new file mode 100644
index 0000000..16f269e
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/marker/CategoryB.java
@@ -0,0 +1,24 @@
+package jiras.surefire955.group.marker;
+
+/*
+ * 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.
+ */
+
+public interface CategoryB
+{
+}
diff --git a/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/marker/CategoryC.java b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/marker/CategoryC.java
new file mode 100644
index 0000000..18dd3bb
--- /dev/null
+++ b/surefire-its/src/test/resources/surefire-995-categoryInheritance/src/test/java/jiras/surefire955/group/marker/CategoryC.java
@@ -0,0 +1,24 @@
+package jiras.surefire955.group.marker;
+
+/*
+ * 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.
+ */
+
+public interface CategoryC
+{
+}
diff --git a/surefire-providers/common-junit48/pom.xml b/surefire-providers/common-junit48/pom.xml
index fa80e47..a011654 100644
--- a/surefire-providers/common-junit48/pom.xml
+++ b/surefire-providers/common-junit48/pom.xml
@@ -17,77 +17,161 @@
   ~ 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/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
+<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/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
 
-  <parent>
-    <groupId>org.apache.maven.surefire</groupId>
-    <artifactId>surefire-providers</artifactId>
-    <version>3.0.0-SNAPSHOT</version>
-  </parent>
+    <parent>
+        <groupId>org.apache.maven.surefire</groupId>
+        <artifactId>surefire-providers</artifactId>
+        <version>3.0.0-SNAPSHOT</version>
+    </parent>
 
-  <artifactId>common-junit48</artifactId>
+    <artifactId>common-junit48</artifactId>
 
-  <name>Shared JUnit48 Provider Code</name>
-  <description>Shared JUnit48 Provider Code</description>
+    <name>Shared JUnit48 Provider Code</name>
+    <description>Shared JUnit48 Provider Code</description>
 
-  <dependencies>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>4.8.1</version>
-      <scope>provided</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.maven.surefire</groupId>
-      <artifactId>common-junit4</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.maven.surefire</groupId>
-      <artifactId>surefire-grouper</artifactId>
-      <version>${project.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.maven.shared</groupId>
-      <artifactId>maven-shared-utils</artifactId>
-      <scope>test</scope>
-    </dependency>
-  </dependencies>
-
-  <build>
-    <plugins>
-      <plugin>
-        <groupId>org.jacoco</groupId>
-        <artifactId>jacoco-maven-plugin</artifactId>
-        <executions>
-          <execution>
-            <id>jacoco-agent</id>
-            <goals>
-              <goal>prepare-agent</goal>
-            </goals>
-          </execution>
-        </executions>
-        <configuration>
-          <propertyName>jacoco.agent</propertyName>
-        </configuration>
-      </plugin>
-      <plugin>
-        <artifactId>maven-surefire-plugin</artifactId>
-        <configuration>
-          <argLine>${jvm.args.tests} ${jacoco.agent}</argLine>
-          <includes>
-            <include>**/JUnit4SuiteTest.java</include>
-          </includes>
-        </configuration>
-        <dependencies>
-          <dependency>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.8.1</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
             <groupId>org.apache.maven.surefire</groupId>
-            <artifactId>surefire-shadefire</artifactId>
-            <version>3.0.0-M4</version> <!-- ${shadedVersion}, but resolved due to https://issues.apache.org/jira/browse/MRELEASE-799 -->
-          </dependency>
-        </dependencies>
-      </plugin>
-    </plugins>
-  </build>
+            <artifactId>common-junit4</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven.surefire</groupId>
+            <artifactId>surefire-grouper</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.maven.shared</groupId>
+            <artifactId>maven-shared-utils</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.jacoco</groupId>
+                <artifactId>jacoco-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>jacoco-agent</id>
+                        <goals>
+                            <goal>prepare-agent</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <propertyName>jacoco.agent</propertyName>
+                </configuration>
+            </plugin>
+            <plugin>
+                <artifactId>maven-dependency-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>junit-4.11</id>
+                        <phase>process-test-sources</phase>
+                        <goals>
+                            <goal>copy</goal>
+                        </goals>
+                        <configuration>
+                            <outputDirectory>${project.build.directory}/endorsed-test</outputDirectory>
+                            <overWriteIfNewer>false</overWriteIfNewer>
+                            <artifactItems>
+                                <artifactItem>
+                                    <groupId>junit</groupId>
+                                    <artifactId>junit</artifactId>
+                                    <version>4.11</version>
+                                    <type>jar</type>
+                                </artifactItem>
+                            </artifactItems>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>test</id>
+                        <phase>process-test-sources</phase>
+                        <goals>
+                            <goal>copy</goal>
+                        </goals>
+                        <configuration>
+                            <outputDirectory>${project.build.directory}/endorsed-test</outputDirectory>
+                            <overWriteIfNewer>false</overWriteIfNewer>
+                            <artifactItems>
+                                <artifactItem>
+                                    <groupId>junit</groupId>
+                                    <artifactId>junit</artifactId>
+                                    <version>4.12</version>
+                                    <type>jar</type>
+                                </artifactItem>
+                            </artifactItems>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>default-test</id>
+                        <phase>test</phase>
+                        <goals>
+                            <goal>test</goal>
+                        </goals>
+                        <configuration>
+                            <includes>
+                                <include>**/JUnit4SuiteTest.java</include>
+                            </includes>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>junit-4.11</id>
+                        <phase>test</phase>
+                        <goals>
+                            <goal>test</goal>
+                        </goals>
+                        <configuration>
+                            <test>GroupMatcherCategoryFilterPreJUnit412Test$JUnit4SuiteTest</test>
+                            <classpathDependencyExcludes>junit:junit</classpathDependencyExcludes>
+                            <additionalClasspathElements>
+                                <additionalClasspathElement>${project.build.directory}/endorsed-test/junit-4.11.jar</additionalClasspathElement>
+                            </additionalClasspathElements>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>junit-4.12</id>
+                        <phase>test</phase>
+                        <goals>
+                            <goal>test</goal>
+                        </goals>
+                        <configuration>
+                            <test>GroupMatcherCategoryFilterTest$JUnit4SuiteTest</test>
+                            <classpathDependencyExcludes>junit:junit</classpathDependencyExcludes>
+                            <additionalClasspathElements>
+                                <additionalClasspathElement>${project.build.directory}/endorsed-test/junit-4.12.jar</additionalClasspathElement>
+                            </additionalClasspathElements>
+                        </configuration>
+                    </execution>
+                </executions>
+                <configuration>
+                    <argLine>${jvm.args.tests} ${jacoco.agent}</argLine>
+                </configuration>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.apache.maven.surefire</groupId>
+                        <artifactId>surefire-shadefire</artifactId>
+                        <version>3.0.0-M4
+                        </version> <!-- ${shadedVersion}, but resolved due to https://issues.apache.org/jira/browse/MRELEASE-799 -->
+                    </dependency>
+                </dependencies>
+            </plugin>
+        </plugins>
+    </build>
 </project>
diff --git a/surefire-providers/common-junit48/src/main/java/org/apache/maven/surefire/common/junit48/GroupMatcherCategoryFilter.java b/surefire-providers/common-junit48/src/main/java/org/apache/maven/surefire/common/junit48/GroupMatcherCategoryFilter.java
index 484defd..287d327 100644
--- a/surefire-providers/common-junit48/src/main/java/org/apache/maven/surefire/common/junit48/GroupMatcherCategoryFilter.java
+++ b/surefire-providers/common-junit48/src/main/java/org/apache/maven/surefire/common/junit48/GroupMatcherCategoryFilter.java
@@ -26,6 +26,7 @@
 import org.junit.runner.Description;
 import org.junit.runner.manipulation.Filter;
 
+import java.lang.annotation.Inherited;
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.Set;
@@ -33,9 +34,13 @@
 import static java.util.Collections.addAll;
 import static org.junit.runner.Description.createSuiteDescription;
 
-final class GroupMatcherCategoryFilter
-    extends Filter
+final class GroupMatcherCategoryFilter extends Filter
 {
+    /**
+     * Only traverse the tree if <code>@Category</code> annotation is inherited (since <code>junit 4.12</code>).
+     */
+    private static final boolean IS_CATEGORY_INHERITED = Category.class.isAnnotationPresent( Inherited.class );
+
     private final AndGroupMatcher matcher;
 
     GroupMatcherCategoryFilter( GroupMatcher included, GroupMatcher excluded )
@@ -63,33 +68,56 @@
     @Override
     public boolean shouldRun( Description description )
     {
-        if ( description.getMethodName() == null || description.getTestClass() == null )
+        if ( invalidTestClass( description ) )
         {
             return shouldRun( description, null, null );
         }
+
+        if ( describesTestClass( description ) ) // is a test class
+        {
+            Class<?> testClass = description.getTestClass();
+            return shouldRun( description, null, testClass );
+        }
         else
+        // is a test method
         {
             Class<?> testClass = description.getTestClass();
             return shouldRun( description, createSuiteDescription( testClass ), testClass );
         }
     }
 
+    private boolean describesTestClass( Description description )
+    {
+        String methodName = description.getMethodName();
+        // Description parser in Junit 4.8 can return "null" String.
+        return methodName == null || methodName.equals( "null" );
+    }
+
+    private boolean invalidTestClass( Description description )
+    {
+        return description.getTestClass() == null;
+    }
+
     private static void findSuperclassCategories( Set<Class<?>> cats, Class<?> clazz )
     {
-        if ( clazz != null && clazz.getSuperclass() != null )
+        if ( IS_CATEGORY_INHERITED && hasSuperclass( clazz ) )
         {
             Category cat = clazz.getSuperclass().getAnnotation( Category.class );
             if ( cat != null )
             {
+                // Found categories in current superclass
                 addAll( cats, cat.value() );
             }
-            else
-            {
-                findSuperclassCategories( cats, clazz.getSuperclass() );
-            }
+            // Search the hierarchy
+            findSuperclassCategories( cats, clazz.getSuperclass() );
         }
     }
 
+    private static boolean hasSuperclass( Class<?> clazz )
+    {
+        return clazz != null && clazz.getSuperclass() != null;
+    }
+
     private boolean shouldRun( Description description, Description parent, Class<?> parentClass )
     {
         if ( matcher == null )
@@ -102,6 +130,7 @@
             Category cat = description.getAnnotation( Category.class );
             if ( cat != null )
             {
+                // Found categories in current description
                 addAll( cats, cat.value() );
             }
 
@@ -110,10 +139,10 @@
                 cat = parent.getAnnotation( Category.class );
                 if ( cat != null )
                 {
+                    // Found categories in current parent
                     addAll( cats, cat.value() );
                 }
             }
-
             if ( parentClass != null )
             {
                 findSuperclassCategories( cats, parentClass );
@@ -125,12 +154,12 @@
                 cat = testClass.getAnnotation( Category.class );
                 if ( cat != null )
                 {
+                    // Found categories in current testClass
                     addAll( cats, cat.value() );
                 }
             }
 
             cats.remove( null );
-
             boolean result = matcher.enabled( cats.toArray( new Class<?>[cats.size()] ) );
 
             if ( !result )
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/GroupMatcherCategoryFilterPreJUnit412Test.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/GroupMatcherCategoryFilterPreJUnit412Test.java
new file mode 100644
index 0000000..543e585
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/GroupMatcherCategoryFilterPreJUnit412Test.java
@@ -0,0 +1,100 @@
+package org.apache.maven.surefire.common.junit48;
+
+/*
+ * 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.JUnit4TestAdapter;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+import junit.runner.Version;
+import org.apache.maven.surefire.common.junit48.tests.group.ABCParameterizedTest;
+import org.apache.maven.surefire.common.junit48.tests.group.ABCTest;
+import org.apache.maven.surefire.common.junit48.tests.group.ATest;
+import org.apache.maven.surefire.common.junit48.tests.group.BCTest;
+import org.apache.maven.surefire.group.match.GroupMatcher;
+import org.apache.maven.surefire.group.match.SingleGroupMatcher;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.runner.Description.createSuiteDescription;
+import static org.junit.runner.Description.createTestDescription;
+
+/**
+ * Before JUnit 4.12, @Category annotation was not @Inherited. These tests make sure the implied contract is honored.
+ */
+public class GroupMatcherCategoryFilterPreJUnit412Test
+{
+    private GroupMatcherCategoryFilter cut;
+
+    @BeforeClass
+    public static void printVersion()
+    {
+        System.out.println( Version.id() );
+    }
+
+    @Test
+    public void shouldNotMatchIncludedCategoryInParent()
+    {
+        GroupMatcher included =
+            new SingleGroupMatcher( "org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryB" );
+        GroupMatcher excluded = null;
+        cut = new GroupMatcherCategoryFilter( included, excluded );
+        assertFalse( cut.shouldRun( createSuiteDescription( BCTest.class ) ) );
+        assertFalse( cut.shouldRun( createSuiteDescription( ATest.class ) ) );
+    }
+
+    @Test
+    public void shouldNotMatchIncludedCategoryInHierarchy()
+    {
+        GroupMatcher included =
+            new SingleGroupMatcher( "org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryC" );
+        GroupMatcher excluded = null;
+        cut = new GroupMatcherCategoryFilter( included, excluded );
+        assertFalse( cut.shouldRun( createSuiteDescription( ABCTest.class ) ) );
+        assertFalse( cut.shouldRun( createSuiteDescription( BCTest.class ) ) );
+        assertFalse( cut.shouldRun( createSuiteDescription( ATest.class ) ) );
+    }
+
+    @Test
+    public void shouldNotMatchIncludedCategoryInParentWhenSelfHasAnother()
+    {
+        GroupMatcher included =
+            new SingleGroupMatcher( "org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryB" );
+        GroupMatcher excluded = null;
+        cut = new GroupMatcherCategoryFilter( included, excluded );
+        assertFalse( cut.shouldRun( createSuiteDescription( ABCTest.class ) ) );
+        assertFalse( cut.shouldRun( createTestDescription( ABCTest.class, "abc" ) ) );
+        assertFalse( cut.shouldRun( createSuiteDescription( ABCParameterizedTest.class ) ) );
+        assertFalse( cut.shouldRun( createTestDescription( ABCParameterizedTest.class, "abc" ) ) );
+    }
+
+    /**
+     *
+     */
+    public static class JUnit4SuiteTest extends TestCase
+    {
+        public static junit.framework.Test suite()
+        {
+            TestSuite suite = new TestSuite();
+            suite.addTest( new JUnit4TestAdapter( GroupMatcherCategoryFilterPreJUnit412Test.class ) );
+            return suite;
+        }
+    }
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/GroupMatcherCategoryFilterTest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/GroupMatcherCategoryFilterTest.java
new file mode 100644
index 0000000..6ddb11a
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/GroupMatcherCategoryFilterTest.java
@@ -0,0 +1,138 @@
+package org.apache.maven.surefire.common.junit48;
+
+/*
+ * 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.JUnit4TestAdapter;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+import junit.runner.Version;
+import org.apache.maven.surefire.common.junit48.tests.group.ABCParameterizedTest;
+import org.apache.maven.surefire.common.junit48.tests.group.ABCTest;
+import org.apache.maven.surefire.common.junit48.tests.group.ATest;
+import org.apache.maven.surefire.common.junit48.tests.group.BBCTest;
+import org.apache.maven.surefire.common.junit48.tests.group.BCTest;
+import org.apache.maven.surefire.common.junit48.tests.group.BTest;
+import org.apache.maven.surefire.group.match.GroupMatcher;
+import org.apache.maven.surefire.group.match.SingleGroupMatcher;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.runner.Description.createSuiteDescription;
+import static org.junit.runner.Description.createTestDescription;
+
+/**
+ * Tests covering inheritance in @Categories for Test classes.
+ */
+public class GroupMatcherCategoryFilterTest
+{
+    private GroupMatcherCategoryFilter cut;
+
+    @BeforeClass
+    public static void printVersion()
+    {
+        System.out.println( Version.id() );
+    }
+
+    @Test
+    public void shouldMatchIncludedCategoryInSelf()
+    {
+        GroupMatcher included =
+            new SingleGroupMatcher( "org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryB" );
+        GroupMatcher excluded = null;
+        cut = new GroupMatcherCategoryFilter( included, excluded );
+        assertTrue( cut.shouldRun( createSuiteDescription( BTest.class ) ) );
+    }
+
+    @Test
+    public void shouldMatchIncludedCategoryInParent()
+    {
+        GroupMatcher included =
+            new SingleGroupMatcher( "org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryB" );
+        GroupMatcher excluded = null;
+        cut = new GroupMatcherCategoryFilter( included, excluded );
+        assertTrue( cut.shouldRun( createSuiteDescription( BCTest.class ) ) );
+        assertFalse( cut.shouldRun( createSuiteDescription( ATest.class ) ) );
+    }
+
+    @Test
+    public void shouldMatchIncludedCategoryInHierarchy()
+    {
+        GroupMatcher included =
+            new SingleGroupMatcher( "org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryC" );
+        GroupMatcher excluded = null;
+        cut = new GroupMatcherCategoryFilter( included, excluded );
+        assertTrue( cut.shouldRun( createSuiteDescription( ABCTest.class ) ) );
+        assertTrue( cut.shouldRun( createSuiteDescription( BCTest.class ) ) );
+        assertFalse( cut.shouldRun( createSuiteDescription( ATest.class ) ) );
+    }
+
+    @Test
+    public void shouldMatchIncludedCategoryInParentWhenSelfHasAnother()
+    {
+        GroupMatcher included =
+            new SingleGroupMatcher( "org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryB" );
+        GroupMatcher excluded = null;
+        cut = new GroupMatcherCategoryFilter( included, excluded );
+        assertTrue( cut.shouldRun( createSuiteDescription( ABCTest.class ) ) );
+        assertTrue( cut.shouldRun( createTestDescription( ABCTest.class, "abc" ) ) );
+        assertTrue( cut.shouldRun( createSuiteDescription( ABCParameterizedTest.class ) ) );
+        assertTrue( cut.shouldRun( createTestDescription( ABCParameterizedTest.class, "abc" ) ) );
+    }
+
+    @Test
+    public void shouldNotMatchIncludedCategoryInParentWhenSelfHasExcludedCategory()
+    {
+        GroupMatcher included =
+            new SingleGroupMatcher( "org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryB" );
+        GroupMatcher excluded =
+            new SingleGroupMatcher( "org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryA" );
+        cut = new GroupMatcherCategoryFilter( included, excluded );
+        assertFalse( cut.shouldRun( createSuiteDescription( ABCTest.class ) ) );
+        assertTrue( cut.shouldRun( createSuiteDescription( BBCTest.class ) ) );
+        assertTrue( cut.shouldRun( createSuiteDescription( BTest.class ) ) );
+    }
+
+    @Test
+    public void shouldMatchExcludedCategoryInSelf()
+    {
+        GroupMatcher included = null;
+        GroupMatcher excluded =
+            new SingleGroupMatcher( "org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryA" );
+        cut = new GroupMatcherCategoryFilter( included, excluded );
+        assertFalse( cut.shouldRun( createSuiteDescription( ATest.class ) ) );
+        assertTrue( cut.shouldRun( createSuiteDescription( BTest.class ) ) );
+        assertTrue( cut.shouldRun( createSuiteDescription( BBCTest.class ) ) );
+    }
+
+    /**
+     *
+     */
+    public static class JUnit4SuiteTest extends TestCase
+    {
+        public static junit.framework.Test suite()
+        {
+            TestSuite suite = new TestSuite();
+            suite.addTest( new JUnit4TestAdapter( GroupMatcherCategoryFilterTest.class ) );
+            return suite;
+        }
+    }
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ABCParameterizedTest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ABCParameterizedTest.java
new file mode 100644
index 0000000..a1cd44a
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ABCParameterizedTest.java
@@ -0,0 +1,63 @@
+package org.apache.maven.surefire.common.junit48.tests.group;
+
+/*
+ * 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.surefire.common.junit48.tests.group.marker.CategoryA;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * ABCParameterizedTest.
+ */
+@Category( CategoryA.class )
+@RunWith( Parameterized.class )
+public class ABCParameterizedTest
+    extends AbstractBCTest
+{
+    @Parameterized.Parameters
+    public static List<Object[]> data()
+    {
+        return Arrays.asList( 
+                              new Object[][] { 
+                                  { 0 }, 
+                                  { 1 }, 
+                                  { 6 } 
+                                  } );
+    }
+
+    private int number;
+
+    public ABCParameterizedTest( int number )
+    {
+        this.number = number;
+    }
+
+    @Test
+    public void abc()
+    {
+        System.out.println( "ABCTest#abc(" + number + ")" );
+    }
+
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ABCTest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ABCTest.java
new file mode 100644
index 0000000..63749aa
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ABCTest.java
@@ -0,0 +1,40 @@
+package org.apache.maven.surefire.common.junit48.tests.group;
+
+/*
+ * 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.surefire.common.junit48.tests.group.marker.CategoryA;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+/**
+ * ABCTest.
+ */
+@Category( CategoryA.class )
+public class ABCTest
+    extends AbstractBCTest
+{
+
+    @Test
+    public void abc()
+    {
+        System.out.println( "ABCTest#abc" );
+    }
+
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ABMethodTest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ABMethodTest.java
new file mode 100644
index 0000000..5146c55
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ABMethodTest.java
@@ -0,0 +1,47 @@
+package org.apache.maven.surefire.common.junit48.tests.group;
+
+/*
+ * 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.surefire.common.junit48.tests.group.marker.CategoryA;
+import org.apache.maven.surefire.common.junit48.tests.group.marker.CategoryB;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+/**
+ * ABMethodTest.
+ */
+@Category( CategoryA.class )
+public class ABMethodTest
+{
+
+    @Test
+    public void a()
+    {
+        System.out.println( "ATest#a" );
+    }
+
+    @Category( CategoryB.class )
+    @Test
+    public void b()
+    {
+        System.out.println( "ATest#b" );
+    }
+
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ATest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ATest.java
new file mode 100644
index 0000000..3f2f9d5
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/ATest.java
@@ -0,0 +1,39 @@
+package org.apache.maven.surefire.common.junit48.tests.group;
+
+/*
+ * 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.surefire.common.junit48.tests.group.marker.CategoryA;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+/**
+ * ATest.
+ */
+@Category( CategoryA.class )
+public class ATest
+{
+
+    @Test
+    public void a()
+    {
+        System.out.println( "ATest#a" );
+    }
+
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/AbstractBCTest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/AbstractBCTest.java
new file mode 100644
index 0000000..8cef8ab
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/AbstractBCTest.java
@@ -0,0 +1,40 @@
+package org.apache.maven.surefire.common.junit48.tests.group;
+
+/*
+ * 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.surefire.common.junit48.tests.group.marker.CategoryB;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+/**
+ * AbstractBCTest.
+ */
+@Category( CategoryB.class )
+public abstract class AbstractBCTest
+    extends AbstractCTest
+{
+
+    @Test
+    public void pb()
+    {
+        System.out.println( "AbstractBCTest#pb" );
+    }
+
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/AbstractCTest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/AbstractCTest.java
new file mode 100644
index 0000000..942f915
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/AbstractCTest.java
@@ -0,0 +1,39 @@
+package org.apache.maven.surefire.common.junit48.tests.group;
+
+/*
+ * 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.surefire.common.junit48.tests.group.marker.CategoryC;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+/**
+ * AbstractCTest.
+ */
+@Category( CategoryC.class )
+public abstract class AbstractCTest
+{
+
+    @Test
+    public void pc()
+    {
+        System.out.println( "AbstractCTest#pc" );
+    }
+
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/BBCTest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/BBCTest.java
new file mode 100644
index 0000000..e48cbec
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/BBCTest.java
@@ -0,0 +1,40 @@
+package org.apache.maven.surefire.common.junit48.tests.group;
+
+/*
+ * 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.surefire.common.junit48.tests.group.marker.CategoryB;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+/**
+ * BBCTest.
+ */
+@Category( CategoryB.class )
+public class BBCTest
+    extends AbstractBCTest
+{
+
+    @Test
+    public void bbc()
+    {
+        System.out.println( "BBCTest#bbc" );
+    }
+
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/BCTest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/BCTest.java
new file mode 100644
index 0000000..0cd859c
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/BCTest.java
@@ -0,0 +1,37 @@
+package org.apache.maven.surefire.common.junit48.tests.group;
+
+/*
+ * 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.junit.Test;
+
+/**
+ * BCTest.
+ */
+public class BCTest
+    extends AbstractBCTest
+{
+
+    @Test
+    public void bc()
+    {
+        System.out.println( "BCTest#bc" );
+    }
+
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/BTest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/BTest.java
new file mode 100644
index 0000000..126678d
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/BTest.java
@@ -0,0 +1,39 @@
+package org.apache.maven.surefire.common.junit48.tests.group;
+
+/*
+ * 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.surefire.common.junit48.tests.group.marker.CategoryB;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+/**
+ * BTest.
+ */
+@Category( CategoryB.class )
+public class BTest
+{
+
+    @Test
+    public void b()
+    {
+        System.out.println( "BTest#b" );
+    }
+
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/UncategorizedTest.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/UncategorizedTest.java
new file mode 100644
index 0000000..92a4a7a
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/UncategorizedTest.java
@@ -0,0 +1,36 @@
+package org.apache.maven.surefire.common.junit48.tests.group;
+
+/*
+ * 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.junit.Test;
+
+/**
+ * UncategorizedTest.
+ */
+public class UncategorizedTest
+{
+
+    @Test
+    public void a()
+    {
+        System.out.println( "Uncategorized#a" );
+    }
+
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/marker/CategoryA.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/marker/CategoryA.java
new file mode 100644
index 0000000..5d69a12
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/marker/CategoryA.java
@@ -0,0 +1,27 @@
+package org.apache.maven.surefire.common.junit48.tests.group.marker;
+
+/*
+ * 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.
+ */
+
+/**
+ * CategoryA marker.
+ */
+public interface CategoryA
+{
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/marker/CategoryB.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/marker/CategoryB.java
new file mode 100644
index 0000000..380b895
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/marker/CategoryB.java
@@ -0,0 +1,27 @@
+package org.apache.maven.surefire.common.junit48.tests.group.marker;
+
+/*
+ * 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.
+ */
+
+/**
+ * CategoryB marker.
+ */
+public interface CategoryB
+{
+}
diff --git a/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/marker/CategoryC.java b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/marker/CategoryC.java
new file mode 100644
index 0000000..df16556
--- /dev/null
+++ b/surefire-providers/common-junit48/src/test/java/org/apache/maven/surefire/common/junit48/tests/group/marker/CategoryC.java
@@ -0,0 +1,27 @@
+package org.apache.maven.surefire.common.junit48.tests.group.marker;
+
+/*
+ * 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.
+ */
+
+/**
+ * CategoryC marker.
+ */
+public interface CategoryC
+{
+}