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Posted to issues@maven.apache.org by "Lukas Theussl (JIRA)" <ji...@codehaus.org> on 2007/04/03 20:37:20 UTC
[jira] Moved: (MPLUGIN-31) The plugin:xdoc produce a null pointer
exception when no parameter is provided
[ http://jira.codehaus.org/browse/MPLUGIN-31?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lukas Theussl moved MPPLUGIN-37 to MPLUGIN-31:
----------------------------------------------
Affects Version/s: (was: 1.7.1)
Workflow: Maven New (was: jira)
Key: MPLUGIN-31 (was: MPPLUGIN-37)
Project: Maven 2.x Plugin Plugin (was: maven-plugin-plugin)
> The plugin:xdoc produce a null pointer exception when no parameter is provided
> ------------------------------------------------------------------------------
>
> Key: MPLUGIN-31
> URL: http://jira.codehaus.org/browse/MPLUGIN-31
> Project: Maven 2.x Plugin Plugin
> Issue Type: Bug
> Environment: Group Id: org.apache.maven.plugins
> Artifact Id: maven-plugin-plugin
> Version: 2.2
> Goal Prefix: plugin
> version of plugin-plugin : 2.2
> Reporter: Clement Soullard
>
> The pluggin:xdoc return a mojo MojoDescriptor with a null parameter list when the mojo has no parameter.
> That causes a null pointer exception when converted to xdoc.
> The folowing patch applied to maven-plugin-tools-2.1/maven-plugin-tools-api/ (not maven-plugin-plugin) solves the problem but maybe it is better to analyse plugin-plugin so that returned list has a zero size.
> Index: C:/maven-plugin-tools-2.1/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/generator/PluginDescriptorGeneratorTest.java
> ===================================================================
> --- C:/maven-plugin-tools-2.1/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/generator/PluginDescriptorGeneratorTest.java (revision 525213)
> +++ C:/maven-plugin-tools-2.1/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/generator/PluginDescriptorGeneratorTest.java (working copy)
> @@ -106,7 +106,7 @@
> assertNotNull( mojoDescriptor.isDependencyResolutionRequired() );
>
> // check the parameter.
> - checkParameter( (Parameter) mojoDescriptor.getParameters().get( 0 ) );
> + // checkParameter( (Parameter) mojoDescriptor.getParameters().get( 0 ) );
> }
>
> private void checkParameter( Parameter parameter )
> Index: C:/maven-plugin-tools-2.1/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/generator/AbstractGeneratorTestCase.java
> ===================================================================
> --- C:/maven-plugin-tools-2.1/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/generator/AbstractGeneratorTestCase.java (revision 525213)
> +++ C:/maven-plugin-tools-2.1/maven-plugin-tools-api/src/test/java/org/apache/maven/tools/plugin/generator/AbstractGeneratorTestCase.java (working copy)
> @@ -50,54 +50,90 @@
> }
>
> public void testGenerator()
> - throws Exception
> - {
> - setupGenerator();
> + throws Exception
> +{
> + setupGenerator();
>
> - MojoDescriptor mojoDescriptor = new MojoDescriptor();
> - mojoDescriptor.setGoal( "testGoal" );
> - mojoDescriptor.setImplementation( "org.apache.maven.tools.plugin.generator.TestMojo" );
> - mojoDescriptor.setDependencyResolutionRequired( "compile" );
> + MojoDescriptor mojoDescriptor = new MojoDescriptor();
> + mojoDescriptor.setGoal( "testGoal" );
> + mojoDescriptor.setImplementation( "org.apache.maven.tools.plugin.generator.TestMojo" );
> + mojoDescriptor.setDependencyResolutionRequired( "compile" );
>
> - List params = new ArrayList();
> + List params = new ArrayList();
>
> - Parameter param = new Parameter();
> - param.setExpression( "${project.build.directory}" );
> - param.setName( "dir" );
> - param.setRequired( true );
> - param.setType( "java.lang.String" );
> - param.setDescription( "Test parameter description" );
> + Parameter param = new Parameter();
> + param.setExpression( "${project.build.directory}" );
> + param.setName( "dir" );
> + param.setRequired( true );
> + param.setType( "java.lang.String" );
> + param.setDescription( "Test parameter description" );
>
> - params.add( param );
> + params.add( param );
>
> - mojoDescriptor.setParameters( params );
> + mojoDescriptor.setParameters( params );
>
> - PluginDescriptor pluginDescriptor = new PluginDescriptor();
> - mojoDescriptor.setPluginDescriptor( pluginDescriptor );
> + PluginDescriptor pluginDescriptor = new PluginDescriptor();
> + mojoDescriptor.setPluginDescriptor( pluginDescriptor );
>
> - pluginDescriptor.addMojo( mojoDescriptor );
> + pluginDescriptor.addMojo( mojoDescriptor );
>
> - pluginDescriptor.setArtifactId( "maven-unitTesting-plugin" );
> - pluginDescriptor.setGoalPrefix( "test" );
> + pluginDescriptor.setArtifactId( "maven-unitTesting-plugin" );
> + pluginDescriptor.setGoalPrefix( "test" );
>
> - ComponentDependency dependency = new ComponentDependency();
> - dependency.setGroupId( "testGroup" );
> - dependency.setArtifactId( "testArtifact" );
> - dependency.setVersion( "0.0.0" );
> + ComponentDependency dependency = new ComponentDependency();
> + dependency.setGroupId( "testGroup" );
> + dependency.setArtifactId( "testArtifact" );
> + dependency.setVersion( "0.0.0" );
>
> - pluginDescriptor.setDependencies( Collections.singletonList( dependency ) );
> + pluginDescriptor.setDependencies( Collections.singletonList( dependency ) );
>
> - File destinationDirectory = new File( System.getProperty( "java.io.tmpdir" ), "testGenerator-outDir" );
> - FileUtils.deleteDirectory( destinationDirectory );
> - destinationDirectory.mkdir();
> + File destinationDirectory = new File( System.getProperty( "java.io.tmpdir" ), "testGenerator-outDir" );
> + FileUtils.deleteDirectory( destinationDirectory );
> + destinationDirectory.mkdir();
>
> - generator.execute( destinationDirectory, pluginDescriptor );
> + generator.execute( destinationDirectory, pluginDescriptor );
>
> - validate( destinationDirectory );
> + validate( destinationDirectory );
>
> - FileUtils.deleteDirectory( destinationDirectory );
> - }
> + FileUtils.deleteDirectory( destinationDirectory );
> +}
> +
> + public void testGeneratorEmptyParameters()
> + throws Exception
> +{
> + setupGenerator();
>
> + MojoDescriptor mojoDescriptor = new MojoDescriptor();
> + mojoDescriptor.setGoal( "testGoal" );
> + mojoDescriptor.setImplementation( "org.apache.maven.tools.plugin.generator.TestMojo" );
> + mojoDescriptor.setDependencyResolutionRequired( "compile" );
> +
> + PluginDescriptor pluginDescriptor = new PluginDescriptor();
> + mojoDescriptor.setPluginDescriptor( pluginDescriptor );
> +
> + pluginDescriptor.addMojo( mojoDescriptor );
> +
> + pluginDescriptor.setArtifactId( "maven-unitTesting-plugin" );
> + pluginDescriptor.setGoalPrefix( "test" );
> +
> + ComponentDependency dependency = new ComponentDependency();
> + dependency.setGroupId( "testGroup" );
> + dependency.setArtifactId( "testArtifact" );
> + dependency.setVersion( "0.0.0" );
> +
> + pluginDescriptor.setDependencies( Collections.singletonList( dependency ) );
> +
> + File destinationDirectory = new File( System.getProperty( "java.io.tmpdir" ), "testGenerator-outDir" );
> + FileUtils.deleteDirectory( destinationDirectory );
> + destinationDirectory.mkdir();
> +
> + generator.execute( destinationDirectory, pluginDescriptor );
> +
> + validate( destinationDirectory );
> +
> + FileUtils.deleteDirectory( destinationDirectory );
> +}
> +
> // ----------------------------------------------------------------------
> //
> // ----------------------------------------------------------------------
> Index: C:/maven-plugin-tools-2.1/maven-plugin-tools-api/src/main/java/org/apache/maven/tools/plugin/generator/PluginXdocGenerator.java
> ===================================================================
> --- C:/maven-plugin-tools-2.1/maven-plugin-tools-api/src/main/java/org/apache/maven/tools/plugin/generator/PluginXdocGenerator.java (revision 525213)
> +++ C:/maven-plugin-tools-2.1/maven-plugin-tools-api/src/main/java/org/apache/maven/tools/plugin/generator/PluginXdocGenerator.java (working copy)
> @@ -249,6 +249,10 @@
> private List filterParameters( List parameterList )
> {
> List filtered = new ArrayList();
> +
> + if(parameterList==null){
> + return filtered;
> + }
>
> for ( Iterator parameters = parameterList.iterator(); parameters.hasNext(); )
> {
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