NPE if .java file contains only comments
----------------------------------------
Key: MJXR-27
URL: http://jira.codehaus.org/browse/MJXR-27
Project: Maven 2.x JXR Plugin
Issue Type: Bug
Affects Versions: 2.0
Reporter: Wendy Smoak
Priority: Minor
Attachments: jxr-test.zip
If a .java file contains only comments, the JXR plugin fails with the following
error.
To reproduce, use the quickstart archetype, edit App.java to contain only
comments, and add the jxr plugin in the reporting section of the pom. Sample
project attached
$mvn site
...
Unable to processPath C:\temp\jxr-test\src\main\java\net\wsmoak\App.java =>
c:\temp\jxr-test\target/site/xref\net\wsmoak\App.html
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] null
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.NullPointerException
at
org.apache.maven.jxr.JavaCodeTransform.getHeader(JavaCodeTransform.java:651)
at
org.apache.maven.jxr.JavaCodeTransform.transform(JavaCodeTransform.java:716)
at
org.apache.maven.jxr.JavaCodeTransform.transform(JavaCodeTransform.java:787)
at org.apache.maven.jxr.JXR.transform(JXR.java:195)
at org.apache.maven.jxr.JXR.processPath(JXR.java:114)
at org.apache.maven.jxr.JXR.xref(JXR.java:335)
at
org.apache.maven.plugin.jxr.AbstractJxrReport.createXref(AbstractJxrReport.java:226)
at
org.apache.maven.plugin.jxr.AbstractJxrReport.executeReport(AbstractJxrReport.java:352)
at
org.apache.maven.reporting.AbstractMavenReport.generate(AbstractMavenReport.java:101)
at
org.apache.maven.plugins.site.ReportDocumentRenderer.renderDocument(ReportDocumentRenderer.java:67)
at
org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderModule(DefaultSiteRenderer.java:239)
at
org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.render(DefaultSiteRenderer.java:115)
at
org.apache.maven.plugins.site.SiteMojo.renderLocale(SiteMojo.java:124)
at org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:92)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:420)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:459)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:330)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:123)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
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:585)
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)
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 7 seconds
[INFO] Finished at: Tue Mar 27 20:30:55 MST 2007
[INFO] Final Memory: 14M/26M
[INFO] ------------------------------------------------------------------------
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