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Posted to dev@felix.apache.org by "Stefan Seifert (JIRA)" <ji...@apache.org> on 2009/09/22 23:00:17 UTC
[jira] Updated: (FELIX-1629) SCR Annotations with Constanst
reference may cause NPE
[ https://issues.apache.org/jira/browse/FELIX-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stefan Seifert updated FELIX-1629:
----------------------------------
Attachment: 090922_npe_fix_FELIX-1629.patch
> SCR Annotations with Constanst reference may cause NPE
> ------------------------------------------------------
>
> Key: FELIX-1629
> URL: https://issues.apache.org/jira/browse/FELIX-1629
> Project: Felix
> Issue Type: Bug
> Components: Maven SCR Plugin
> Affects Versions: maven-scr-plugin-1.4.0
> Reporter: Stefan Seifert
> Fix For: maven-scr-plugin-1.4.1
>
> Attachments: 090922_npe_fix_FELIX-1629.patch
>
>
> under certain circumstances the maven scr plugin throws a NPE like this
> java.lang.NullPointerException
> at org.apache.felix.scrplugin.tags.annotation.defaulttag.Util.getAnnotationValue(Util.java:362)
> at org.apache.felix.scrplugin.tags.annotation.defaulttag.Util.getAnnotationValues(Util.java:399)
> at org.apache.felix.scrplugin.tags.annotation.defaulttag.Util.getStringValue(Util.java:277)
> at org.cqstone.core.annotationtagprovider.ComponentComponentTag.<init>(ComponentComponentTag.java:31)
> at org.cqstone.core.annotationtagprovider.CqstoneAnnotationTagProvider.getTags(CqstoneAnnotationTagProvider.java:31)
> at org.apache.felix.scrplugin.tags.annotation.AnnotationTagProviderManager.getTags(AnnotationTagProviderManager.java:105)
> at org.apache.felix.scrplugin.tags.annotation.AnnotationTagProviderManager.getTags(AnnotationTagProviderManager.java:90)
> at org.apache.felix.scrplugin.tags.annotation.AnnotationTagProviderManager.hasScrPluginAnnotation(AnnotationTagProviderManager.java:118)
> at org.apache.felix.scrplugin.tags.JavaClassDescriptorManager.getJavaClassDescription(JavaClassDescriptorManager.java:417)
> at org.apache.felix.scrplugin.tags.JavaClassDescriptorManager.getSourceDescriptions(JavaClassDescriptorManager.java:394)
> at org.apache.felix.scrplugin.SCRDescriptorMojo.execute(SCRDescriptorMojo.java:167)
> at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:569)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:539)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
> at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
> at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
> at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
> at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> the reason of the NPE is that the "prescan" which is done in AnnotationTagProviderManager#hasScrPluginAnnotation to check if any annotation is present in a java class at all calls the getTags methods without a "JavaClassDescription" object. but Util.getAnnotationValue depends on this, although this is not needed for the "prescan" check.
> the attached patch fixes this problem.
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