[MPLUGIN-269] maven-plugin-tools-annotations does not work in builds which don't package

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Component/s: maven-plugin-tools-annotations
• Assignee: Robert Scholte
• Reporter: Igor Fedorenko
• Created: 08/Jul/14 03:07
• Updated: 12/May/15 18:06
• Resolved: 12/May/15 18:06

Description

When running descriptor goal inside m2e workspace, I get the following exception for plugin projects that depend on other plugin projects.

org.apache.maven.plugin.PluginExecutionException: Execution default-descriptor of goal org.apache.maven.plugins:maven-plugin-plugin:3.3:descriptor failed: The source must not be a directory.
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:143)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:328)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl$10.call(MavenImpl.java:1355)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl$10.call(MavenImpl.java:1)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:174)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:110)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1353)
	at org.eclipse.m2e.core.project.configurator.MojoExecutionBuildParticipant.build(MojoExecutionBuildParticipant.java:52)
	at org.eclipse.m2e.core.internal.builder.MavenBuilderImpl.build(MavenBuilderImpl.java:132)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:172)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:1)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1$1.call(MavenBuilder.java:115)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:174)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:110)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1.call(MavenBuilder.java:105)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:174)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:149)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:97)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.execute(MavenBuilder.java:86)
	at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:200)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:734)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:246)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:299)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:302)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:358)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:381)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:143)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:241)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: org.codehaus.plexus.archiver.ArchiverException: The source must not be a directory.
	at org.codehaus.plexus.archiver.AbstractUnArchiver.validate(AbstractUnArchiver.java:185)
	at org.codehaus.plexus.archiver.AbstractUnArchiver.extract(AbstractUnArchiver.java:118)
	at org.apache.maven.tools.plugin.annotations.JavaAnnotationsMojoDescriptorExtractor.discoverClassesFromSourcesJar(JavaAnnotationsMojoDescriptorExtractor.java:220)
	at org.apache.maven.tools.plugin.annotations.JavaAnnotationsMojoDescriptorExtractor.scanJavadoc(JavaAnnotationsMojoDescriptorExtractor.java:172)
	at org.apache.maven.tools.plugin.annotations.JavaAnnotationsMojoDescriptorExtractor.execute(JavaAnnotationsMojoDescriptorExtractor.java:100)
	at org.apache.maven.tools.plugin.scanner.DefaultMojoScanner.populatePluginDescriptor(DefaultMojoScanner.java:96)
	at org.apache.maven.plugin.plugin.AbstractGeneratorMojo.execute(AbstractGeneratorMojo.java:243)
	at org.apache.maven.plugin.plugin.DescriptorGeneratorMojo.execute(DescriptorGeneratorMojo.java:90)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)
	... 31 more

As a result, plugin.xml is not generated and the plugin cannot be used from m2e workspace directly.

The same exception is thrown during multimodule reactor build invoked with "mvn clean process-classes -e".