[MNG-4811] Custom Maven Plugin regression in Maven 3.x, custom ComponentConfigurator causes infinite loop

o Added IT

git-svn-id: https://svn.apache.org/repos/asf/maven/core-integration-testing/trunk@998228 13f79535-47bb-0310-9956-ffa450edef68

its/core-it-suite/src/test/java/org/apache/maven/it/IntegrationTestSuite.java

@@ -83,6 +83,7 @@ public class IntegrationTestSuite
         // suite.addTestSuite( MavenIT0108SnapshotUpdateTest.class ); -- MNG-3137
 
         suite.addTestSuite( MavenITmng4814ReResolutionOfDependenciesDuringReactorTest.class );
+        suite.addTestSuite( MavenITmng4811CustomComponentConfiguratorTest.class );
         suite.addTestSuite( MavenITmng4800NearestWinsVsScopeWideningTest.class );
         suite.addTestSuite( MavenITmng4795DepResolutionInReactorProjectForkedByLifecycleTest.class );
         suite.addTestSuite( MavenITmng4791ProjectBuilderResolvesRemotePomArtifactTest.class );

its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4811CustomComponentConfiguratorTest.java

@@ -0,0 +1,60 @@
+package org.apache.maven.it;
+
+/*
+ * 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.Verifier;
+import org.apache.maven.it.util.ResourceExtractor;
+
+import java.io.File;
+import java.util.Properties;
+
+/**
+ * This is a test set for <a href="http://jira.codehaus.org/browse/MNG-4811">MNG-4811</a>.
+ */
+public class MavenITmng4811CustomComponentConfiguratorTest
+    extends AbstractMavenIntegrationTestCase
+{
+
+    public MavenITmng4811CustomComponentConfiguratorTest()
+    {
+        super( "[2.0.3,3.0-alpha-1)[3.0,)" );
+    }
+
+    /**
+     * Verify that plugins can use custom component configurators.
+     */
+    public void testit()
+        throws Exception
+    {
+        File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-4811" );
+
+        Verifier verifier = newVerifier( testDir.getAbsolutePath() );
+        verifier.setAutoclean( false );
+        verifier.deleteDirectory( "target" );
+        verifier.executeGoal( "validate" );
+        verifier.verifyErrorFreeLog();
+        verifier.resetStreams();
+
+        Properties props = verifier.loadProperties( "target/config.properties" );
+        assertEquals( "PASSED", props.getProperty( "stringParam" ) );
+        assertEquals( "configured", props.getProperty( "customParam" ) );
+    }
+
+}

its/core-it-suite/src/test/resources/mng-4811/pom.xml

@@ -0,0 +1,55 @@
+<?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.mng4811</groupId>
+  <artifactId>test</artifactId>
+  <version>1</version>
+
+  <name>Maven Integration Test :: MNG-4811</name> 
+  <description>
+    Verify that plugins can use custom component configurators.
+  </description>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.its.plugins</groupId>
+        <artifactId>maven-it-plugin-configuration</artifactId>
+        <version>2.1-SNAPSHOT</version>
+        <configuration>
+          <propertiesFile>target/config.properties</propertiesFile>
+          <stringParam>PASSED</stringParam>
+        </configuration>
+        <executions>
+          <execution>
+            <phase>validate</phase>
+            <goals>
+              <goal>custom-config</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>

its/core-it-support/core-it-plugins/maven-it-plugin-configuration/src/main/java/org/apache/maven/plugin/coreit/CustomComponentConfigurator.java

@@ -0,0 +1,57 @@
+package org.apache.maven.plugin.coreit;
+
+/*
+ * 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.codehaus.classworlds.ClassRealm;
+import org.codehaus.plexus.component.configurator.AbstractComponentConfigurator;
+import org.codehaus.plexus.component.configurator.ComponentConfigurationException;
+import org.codehaus.plexus.component.configurator.ConfigurationListener;
+import org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter;
+import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator;
+import org.codehaus.plexus.configuration.PlexusConfiguration;
+
+/**
+ * A custom component configurator. Does not do much special compared to the basic one, but is sufficient to check
+ * general support of the specific API.
+ * 
+ * @author Benjamin Bentmann
+ * @plexus.component role="org.codehaus.plexus.component.configurator.ComponentConfigurator" role-hint="coreit"
+ */
+public class CustomComponentConfigurator
+    extends AbstractComponentConfigurator
+{
+
+    public void configureComponent( Object component, PlexusConfiguration configuration,
+                                    ExpressionEvaluator expressionEvaluator, ClassRealm containerRealm,
+                                    ConfigurationListener listener )
+        throws ComponentConfigurationException
+    {
+        ObjectWithFieldsConverter converter = new ObjectWithFieldsConverter();
+
+        converter.processConfiguration( converterLookup, component, containerRealm.getClassLoader(), configuration,
+                                        expressionEvaluator, listener );
+
+        if ( component instanceof CustomConfigMojo )
+        {
+            ( (CustomConfigMojo) component ).customParam = "configured";
+        }
+    }
+
+}

its/core-it-support/core-it-plugins/maven-it-plugin-configuration/src/main/java/org/apache/maven/plugin/coreit/CustomConfigMojo.java

@@ -0,0 +1,186 @@
+package org.apache.maven.plugin.coreit;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.io.File;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+
+/**
+ * Dumps this mojo's configuration into a properties file. Note that this mojo uses a custom component configurator.
+ * 
+ * @goal custom-config
+ * @phase validate
+ * @configurator coreit
+ * 
+ * @author Benjamin Bentmann
+ * @version $Id$
+ */
+public class CustomConfigMojo
+    extends AbstractMojo
+{
+
+    /**
+     * The current project's base directory, used for path alignment.
+     * 
+     * @parameter default-value="${basedir}"
+     * @readonly
+     */
+    private File basedir;
+
+    /**
+     * The path to the properties file into which to save the mojo configuration.
+     * 
+     * @parameter expression="${config.propertiesFile}"
+     */
+    private File propertiesFile;
+
+    /**
+     * A parameter being set only by the custom configurator as a proof of its execution.
+     * 
+     * @parameter
+     */
+    String customParam;
+
+    /**
+     * A parameter with a constant default value. <em>Note:</em> This has intentionally a different default value than
+     * the equally named parameter from {@link ConfigMojo}.
+     * 
+     * @parameter default-value="test"
+     */
+    private String defaultParam;
+
+    /**
+     * A simple parameter of type {@link java.lang.String}.
+     * 
+     * @parameter expression="${config.stringParam}"
+     */
+    private String stringParam;
+
+    /**
+     * A simple parameter of type {@link java.io.File}.
+     * 
+     * @parameter expression="${config.fileParam}"
+     */
+    private File fileParam;
+
+    /**
+     * An array parameter of component type {@link java.lang.String}.
+     * 
+     * @parameter
+     */
+    private String[] stringParams;
+
+    /**
+     * An array parameter of component type {@link java.io.File}.
+     * 
+     * @parameter
+     */
+    private File[] fileParams;
+
+    /**
+     * A collection parameter of type {@link java.util.List}.
+     * 
+     * @parameter
+     */
+    private List listParam;
+
+    /**
+     * A collection parameter of type {@link java.util.Set}.
+     * 
+     * @parameter
+     */
+    private Set setParam;
+
+    /**
+     * A collection parameter of type {@link java.util.Map}.
+     * 
+     * @parameter
+     */
+    private Map mapParam;
+
+    /**
+     * A collection parameter of type {@link java.util.Properties}.
+     * 
+     * @parameter
+     */
+    private Properties propertiesParam;
+
+    /**
+     * Runs this mojo.
+     * 
+     * @throws MojoExecutionException If the output file could not be created.
+     */
+    public void execute()
+        throws MojoExecutionException
+    {
+        getLog().info( "[MAVEN-CORE-IT-LOG] Using output file path: " + propertiesFile );
+
+        if ( propertiesFile == null )
+        {
+            throw new MojoExecutionException( "Path name for output file has not been specified" );
+        }
+
+        if ( !propertiesFile.isAbsolute() )
+        {
+            propertiesFile = new File( basedir, propertiesFile.getPath() ).getAbsoluteFile();
+        }
+
+        Properties configProps = new Properties();
+
+        dumpConfiguration( configProps );
+
+        getLog().info( "[MAVEN-CORE-IT-LOG] Creating output file: " + propertiesFile );
+
+        PropertiesUtil.write( propertiesFile, configProps );
+
+        getLog().info( "[MAVEN-CORE-IT-LOG] Created output file: " + propertiesFile );
+    }
+
+    /**
+     * Dumps the mojo configuration into the specified properties.
+     * 
+     * @param props The properties to dump the configuration into, must not be <code>null</code>.
+     */
+    private void dumpConfiguration( Properties props )
+    {
+        /*
+         * NOTE: This intentionally does not dump the absolute path of a file to check the actual value that was
+         * injected by Maven.
+         */
+        PropertiesUtil.serialize( props, "propertiesFile", propertiesFile );
+        PropertiesUtil.serialize( props, "customParam", customParam );
+        PropertiesUtil.serialize( props, "defaultParam", defaultParam );
+        PropertiesUtil.serialize( props, "stringParam", stringParam );
+        PropertiesUtil.serialize( props, "fileParam", fileParam );
+        PropertiesUtil.serialize( props, "stringParams", stringParams );
+        PropertiesUtil.serialize( props, "fileParams", fileParams );
+        PropertiesUtil.serialize( props, "listParam", listParam );
+        PropertiesUtil.serialize( props, "setParam", setParam );
+        PropertiesUtil.serialize( props, "mapParam", mapParam );
+        PropertiesUtil.serialize( props, "propertiesParam", propertiesParam );
+    }
+
+}

its/core-it-support/core-it-plugins/maven-it-plugin-configuration/src/main/resources/META-INF/plexus/components.xml

@@ -0,0 +1,32 @@
+<?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.
+-->
+
+<component-set>
+  <components>
+    <component>
+      <role>org.codehaus.plexus.component.configurator.ComponentConfigurator</role>
+      <role-hint>coreit</role-hint>
+      <implementation>org.apache.maven.plugin.coreit.CustomComponentConfigurator</implementation>
+      <description>A custom component configurator.</description>
+      <isolated-realm>false</isolated-realm>
+    </component>
+  </components>
+</component-set>

its/core-it-support/core-it-plugins/maven-it-plugin-error/pom.xml

@@ -1,12 +1,33 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+
+<!--
+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 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <modelVersion>4.0.0</modelVersion>
+
   <parent>
     <artifactId>maven-it-plugins</artifactId>
     <groupId>org.apache.maven.its.plugins</groupId>
     <version>2.1-SNAPSHOT</version>
   </parent>
+
   <artifactId>maven-it-plugin-error</artifactId>
   <packaging>maven-plugin</packaging>