Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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3.4
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None
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Patch
Description
Custom (Java 6) Maven plugin (relying on Java 5 annotations to generate the plugin descriptor file) with dependencies that have Java 8 classes (not necessarily referenced by plugin code - just present in the jars) which use Java 8 type-use or type-parameter annotations fails on `generate:descriptor` goal:
$ mvn plugin:descriptor -e [INFO] Error stacktraces are turned on. [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building java6-plugin 0.0-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-plugin-plugin:3.4:descriptor (default-cli) @ java6-plugin --- [INFO] Using 'UTF-8' encoding to read mojo metadata. [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1.022 s [INFO] Finished at: 2016-08-25T17:14:54-07:00 [INFO] Final Memory: 10M/245M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-plugin-plugin:3.4:descriptor (default-cli) on project java6-plugin: Execution default-cli of goal org.apache.maven.plugins:maven-plugin-plugin:3.4:descriptor failed. RuntimeException -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-plugin-plugin:3.4:descriptor (default-cli) on project java6-plugin: Execution default-cli of goal org.apache.maven.plugins:maven-plugin-plugin:3.4:descriptor failed. at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:224) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286) at org.apache.maven.cli.MavenCli.main(MavenCli.java:197) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default-cli of goal org.apache.maven.plugins:maven-plugin-plugin:3.4:descriptor failed. at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:145) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) ... 20 more Caused by: java.lang.RuntimeException at org.objectweb.asm.FieldVisitor.visitTypeAnnotation(Unknown Source) at org.objectweb.asm.ClassReader.a(Unknown Source) at org.objectweb.asm.ClassReader.accept(Unknown Source) at org.objectweb.asm.ClassReader.accept(Unknown Source) at org.apache.maven.tools.plugin.extractor.annotations.scanner.DefaultMojoAnnotationsScanner.analyzeClassStream(DefaultMojoAnnotationsScanner.java:202) at org.apache.maven.tools.plugin.extractor.annotations.scanner.DefaultMojoAnnotationsScanner.scanArchive(DefaultMojoAnnotationsScanner.java:139) at org.apache.maven.tools.plugin.extractor.annotations.scanner.DefaultMojoAnnotationsScanner.scan(DefaultMojoAnnotationsScanner.java:108) at org.apache.maven.tools.plugin.extractor.annotations.scanner.DefaultMojoAnnotationsScanner.scan(DefaultMojoAnnotationsScanner.java:75) at org.apache.maven.tools.plugin.extractor.annotations.JavaAnnotationsMojoDescriptorExtractor.scanAnnotations(JavaAnnotationsMojoDescriptorExtractor.java:124) at org.apache.maven.tools.plugin.extractor.annotations.JavaAnnotationsMojoDescriptorExtractor.execute(JavaAnnotationsMojoDescriptorExtractor.java:103) at org.apache.maven.tools.plugin.scanner.DefaultMojoScanner.populatePluginDescriptor(DefaultMojoScanner.java:96) at org.apache.maven.plugin.plugin.AbstractGeneratorMojo.execute(AbstractGeneratorMojo.java:245) at org.apache.maven.plugin.plugin.DescriptorGeneratorMojo.execute(DescriptorGeneratorMojo.java:90) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134) ... 21 more [ERROR] [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException $
Failure happens in org.objectweb.asm.FieldVisitor.visitTypeAnnotation(...) method:
if (api < Opcodes.ASM5) { throw new RuntimeException(); }
Simple fix is to pass Opcodes.ASM5 (instead of Opcodes.ASM4) to super constructors of org.apache.maven.tools.plugin.extractor.annotations.scanner.visitors.MojoClassVisitor, MojoFieldVisitor, and MojoAnnotationVisitor classes, e.g.:
MojoFieldVisitor( Logger logger, String fieldName, String className ) { super( Opcodes.ASM5 ); this.logger = logger; this.fieldName = fieldName; this.className = className; }
mvn integration-test passes on maven-plugin-tools-3.4 with the change applied to these three classes, and plugin:descriptor works flawlessly.