[MNG-6772] Prove Super POM central entry won't override

Closes #49
diff --git a/core-it-suite/src/test/java/org/apache/maven/it/IntegrationTestSuite.java b/core-it-suite/src/test/java/org/apache/maven/it/IntegrationTestSuite.java
index ee41a83..c717aca 100644
--- a/core-it-suite/src/test/java/org/apache/maven/it/IntegrationTestSuite.java
+++ b/core-it-suite/src/test/java/org/apache/maven/it/IntegrationTestSuite.java
@@ -108,6 +108,7 @@
         // suite.addTestSuite( MavenIT0108SnapshotUpdateTest.class ); -- MNG-3137
 
         suite.addTestSuite( MavenITmng6972AllowAccessToGraphPackageTest.class );
+        suite.addTestSuite( MavenITmng6772NestedImportScopeRepositoryOverride.class );
         suite.addTestSuite( MavenITmng6759TransitiveDependencyRepositoriesTest.class );
         suite.addTestSuite( MavenITmng6720FailFastTest.class );
         suite.addTestSuite( MavenITmng6656BuildConsumer.class );
diff --git a/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6772NestedImportScopeRepositoryOverride.java b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6772NestedImportScopeRepositoryOverride.java
new file mode 100644
index 0000000..636327d
--- /dev/null
+++ b/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng6772NestedImportScopeRepositoryOverride.java
@@ -0,0 +1,95 @@
+package org.apache.maven.it;
+
+import java.io.File;
+
+/*
+ * 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.it.util.ResourceExtractor;
+
+/**
+ * This is a test set for <a href="https://issues.apache.org/jira/browse/MNG-6772">MNG-6772</a>:
+ *
+ * The test POM references an import scope POM, which also has a dependency on an import scope POM.
+ *
+ * Both import POMs can only be found in the repository defined in the test POM. 
+ * It has a parent POM that defines the same repository with a different location.
+ * The test confirms that the dominant repository definition (child) wins while resolving the import POMs.
+ *
+ */
+public class MavenITmng6772NestedImportScopeRepositoryOverride
+    extends AbstractMavenIntegrationTestCase
+{
+
+    public MavenITmng6772NestedImportScopeRepositoryOverride()
+    {
+        super( "[3.7.0,)" );
+    }
+
+    // This will test the behavior using ProjectModelResolver
+    public void testitInProject()
+        throws Exception
+    {
+        final File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-6772-override-in-project" );
+
+        final Verifier verifier = newVerifier( testDir.getAbsolutePath(), null );
+        overrideGlobalSettings( testDir, verifier );
+        verifier.deleteArtifacts( "org.apache.maven.its.mng6772" );
+
+        verifier.filterFile( "pom-template.xml", "pom.xml", "UTF-8", verifier.newDefaultFilterProperties() );
+
+        verifier.executeGoal( "validate" );
+        verifier.verifyErrorFreeLog();
+        verifier.resetStreams();
+    }
+    
+    // This will test the behavior using DefaultModelResolver
+    public void testitInDependency()
+        throws Exception
+    {
+        final File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-6772-override-in-dependency" );
+
+        final Verifier verifier = newVerifier( testDir.getAbsolutePath(), null );
+        overrideGlobalSettings( testDir, verifier );
+        verifier.deleteArtifacts( "org.apache.maven.its.mng6772" );
+
+        verifier.filterFile( "pom-template.xml", "pom.xml", "UTF-8", verifier.newDefaultFilterProperties() );
+
+        verifier.executeGoal( "compile" );
+        verifier.verifyErrorFreeLog();
+        verifier.resetStreams();
+    }
+    
+    // central must not be defined in any settings.xml or super POM will never be in play.
+    private void overrideGlobalSettings( final File testDir, final Verifier verifier )
+    {
+        final File settingsFile = new File( testDir, "settings-override.xml" );
+        final String path = settingsFile.getAbsolutePath();
+        verifier.getCliOptions().add( "--global-settings" );
+        if ( path.indexOf( ' ' ) < 0 )
+        {
+            verifier.getCliOptions().add( path );
+        }
+        else
+        {
+            verifier.getCliOptions().add( '"' + path + '"' );
+        }
+    }
+
+}
diff --git a/core-it-suite/src/test/resources/mng-6772-override-in-dependency/pom-template.xml b/core-it-suite/src/test/resources/mng-6772-override-in-dependency/pom-template.xml
new file mode 100644
index 0000000..9120768
--- /dev/null
+++ b/core-it-suite/src/test/resources/mng-6772-override-in-dependency/pom-template.xml
@@ -0,0 +1,50 @@
+<?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>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.maven.its.mng6772</groupId>
+    <artifactId>test</artifactId>
+    <version>0.1</version>
+    <packaging>jar</packaging>
+
+    <name>Maven Integration Test :: MNG-6772</name>
+    <description>
+        Checks that overriding the central repository always wins over the super POM.
+    </description>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.maven.its.mng6772</groupId>
+            <artifactId>dependency</artifactId>
+            <version>0.1</version>
+            <type>pom</type>
+        </dependency>
+    </dependencies>
+
+    <repositories>
+        <repository>
+            <id>central</id>
+            <url>@baseurl@/repo</url>
+        </repository>
+    </repositories>
+</project>
diff --git a/core-it-suite/src/test/resources/mng-6772-override-in-dependency/repo/org/apache/maven/its/mng6772/a/0.1/a-0.1.pom b/core-it-suite/src/test/resources/mng-6772-override-in-dependency/repo/org/apache/maven/its/mng6772/a/0.1/a-0.1.pom
new file mode 100644
index 0000000..5420f7b
--- /dev/null
+++ b/core-it-suite/src/test/resources/mng-6772-override-in-dependency/repo/org/apache/maven/its/mng6772/a/0.1/a-0.1.pom
@@ -0,0 +1,41 @@
+<?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>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.maven.its.mng6772</groupId>
+    <artifactId>a</artifactId>
+    <version>0.1</version>
+    <packaging>pom</packaging>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.apache.maven.its.mng6772</groupId>
+                <artifactId>b</artifactId>
+                <version>0.1</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+</project>
diff --git a/core-it-suite/src/test/resources/mng-6772-override-in-dependency/repo/org/apache/maven/its/mng6772/b/0.1/b-0.1.pom b/core-it-suite/src/test/resources/mng-6772-override-in-dependency/repo/org/apache/maven/its/mng6772/b/0.1/b-0.1.pom
new file mode 100644
index 0000000..5cc3486
--- /dev/null
+++ b/core-it-suite/src/test/resources/mng-6772-override-in-dependency/repo/org/apache/maven/its/mng6772/b/0.1/b-0.1.pom
@@ -0,0 +1,39 @@
+<?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>
+    <modelVersion>4.0.0</modelVersion>
+    
+    <groupId>org.apache.maven.its.mng6772</groupId>
+    <artifactId>b</artifactId>
+    <version>0.1</version>
+    <packaging>pom</packaging>
+    
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.apache.maven.its.mng6772</groupId>
+                <artifactId>c</artifactId>
+                <version>0.1</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+</project>
diff --git a/core-it-suite/src/test/resources/mng-6772-override-in-dependency/repo/org/apache/maven/its/mng6772/dependency/0.1/dependency-0.1.pom b/core-it-suite/src/test/resources/mng-6772-override-in-dependency/repo/org/apache/maven/its/mng6772/dependency/0.1/dependency-0.1.pom
new file mode 100644
index 0000000..5a6b1e1
--- /dev/null
+++ b/core-it-suite/src/test/resources/mng-6772-override-in-dependency/repo/org/apache/maven/its/mng6772/dependency/0.1/dependency-0.1.pom
@@ -0,0 +1,41 @@
+<?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>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.maven.its.mng6772</groupId>
+    <artifactId>dependency</artifactId>
+    <version>0.1</version>
+    <packaging>pom</packaging>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.apache.maven.its.mng6772</groupId>
+                <artifactId>a</artifactId>
+                <version>0.1</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+</project>
diff --git a/core-it-suite/src/test/resources/mng-6772-override-in-dependency/settings-override.xml b/core-it-suite/src/test/resources/mng-6772-override-in-dependency/settings-override.xml
new file mode 100644
index 0000000..662d3f0
--- /dev/null
+++ b/core-it-suite/src/test/resources/mng-6772-override-in-dependency/settings-override.xml
@@ -0,0 +1,23 @@
+<?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.
+-->
+
+<settings>
+</settings>
diff --git a/core-it-suite/src/test/resources/mng-6772-override-in-project/pom-template.xml b/core-it-suite/src/test/resources/mng-6772-override-in-project/pom-template.xml
new file mode 100644
index 0000000..19149cd
--- /dev/null
+++ b/core-it-suite/src/test/resources/mng-6772-override-in-project/pom-template.xml
@@ -0,0 +1,53 @@
+<?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>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.maven.its.mng6772</groupId>
+    <artifactId>test</artifactId>
+    <version>0.1</version>
+    <packaging>jar</packaging>
+
+    <name>Maven Integration Test :: MNG-6772</name>
+    <description>
+        Checks that overriding the central repository always wins over the super POM.
+    </description>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.apache.maven.its.mng6772</groupId>
+                <artifactId>a</artifactId>
+                <version>0.1</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <repositories>
+        <repository>
+            <id>central</id>
+            <url>@baseurl@/repo</url>
+        </repository>
+    </repositories>
+</project>
diff --git a/core-it-suite/src/test/resources/mng-6772-override-in-project/repo/org/apache/maven/its/mng6772/a/0.1/a-0.1.pom b/core-it-suite/src/test/resources/mng-6772-override-in-project/repo/org/apache/maven/its/mng6772/a/0.1/a-0.1.pom
new file mode 100644
index 0000000..5420f7b
--- /dev/null
+++ b/core-it-suite/src/test/resources/mng-6772-override-in-project/repo/org/apache/maven/its/mng6772/a/0.1/a-0.1.pom
@@ -0,0 +1,41 @@
+<?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>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.maven.its.mng6772</groupId>
+    <artifactId>a</artifactId>
+    <version>0.1</version>
+    <packaging>pom</packaging>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.apache.maven.its.mng6772</groupId>
+                <artifactId>b</artifactId>
+                <version>0.1</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+</project>
diff --git a/core-it-suite/src/test/resources/mng-6772-override-in-project/repo/org/apache/maven/its/mng6772/b/0.1/b-0.1.pom b/core-it-suite/src/test/resources/mng-6772-override-in-project/repo/org/apache/maven/its/mng6772/b/0.1/b-0.1.pom
new file mode 100644
index 0000000..5cc3486
--- /dev/null
+++ b/core-it-suite/src/test/resources/mng-6772-override-in-project/repo/org/apache/maven/its/mng6772/b/0.1/b-0.1.pom
@@ -0,0 +1,39 @@
+<?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>
+    <modelVersion>4.0.0</modelVersion>
+    
+    <groupId>org.apache.maven.its.mng6772</groupId>
+    <artifactId>b</artifactId>
+    <version>0.1</version>
+    <packaging>pom</packaging>
+    
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.apache.maven.its.mng6772</groupId>
+                <artifactId>c</artifactId>
+                <version>0.1</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+</project>
diff --git a/core-it-suite/src/test/resources/mng-6772-override-in-project/settings-override.xml b/core-it-suite/src/test/resources/mng-6772-override-in-project/settings-override.xml
new file mode 100644
index 0000000..662d3f0
--- /dev/null
+++ b/core-it-suite/src/test/resources/mng-6772-override-in-project/settings-override.xml
@@ -0,0 +1,23 @@
+<?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.
+-->
+
+<settings>
+</settings>