Hi,
I'm having issues with "mvn site" resulting in a NullPointer exception.
Could someone give me a hint what can cause these exceptions?
regards
Thomas
[INFO] Generating "Developer Activity" report ---
maven-changelog-plugin:2.2
[INFO] Using existing changelog.xml...
[DEBUG] Multipage report: 0 subreports
[DEBUG] Velocimacro : added #link( href name target img position alt
border width height ) : source =
org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #image( img alt border width height ) :
source = org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #banner( banner id ) : source =
org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #links( links ) : source =
org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #breadcrumbs( breadcrumbs ) : source =
org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #displayTree( display item ) : source =
org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #menuItem( item ) : source =
org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #mainMenu( menus ) : source =
org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #copyright( ) : source =
org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #publishDate( position publishDate version
) : source = org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #poweredByLogo( poweredBy ) : source =
org/apache/maven/doxia/siterenderer/resources/default-site.vm
[DEBUG] Velocimacro : added #googleAnalytics( accountId ) : source =
org/apache/maven/doxia/siterenderer/resources/default-site.vm
[ERROR] Method calculateLink threw exception for reference $PathTool in
template org/apache/maven/doxia/siterenderer/resources/default-site.vm
at [2,29]
[INFO]
------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO]
------------------------------------------------------------------------
[INFO] Total time: 4.564s
[INFO] Finished at: Wed Jan 18 10:18:07 CET 2012
[INFO] Final Memory: 26M/618M
[INFO]
------------------------------------------------------------------------
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-site-plugin:3.0:site (default-site) on
project mycore-parent: Error during page generation: Error while
generating code. Invocation of method 'calculateLink' in class
org.codehaus.plexus.util.PathTool threw exception
java.lang.NullPointerException @
org/apache/maven/doxia/siterenderer/resources/default-site.vm[2,39] ->
[Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to
execute goal org.apache.maven.plugins:maven-site-plugin:3.0:site
(default-site) on project mycore-parent: Error during page generation
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217)
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:84)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at
org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at
org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
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.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at
org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at
org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at
org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.MojoExecutionException: Error during
page generation
at
org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:143)
at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
... 19 more
Caused by: org.apache.maven.doxia.siterenderer.RendererException: Error
while generating code.
at
org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.processTemplate(DefaultSiteRenderer.java:566)
at
org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.writeTemplate(DefaultSiteRenderer.java:530)
at
org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.generateDocument(DefaultSiteRenderer.java:509)
at
org.apache.maven.plugins.site.ReportDocumentRenderer.renderDocument(ReportDocumentRenderer.java:283)
at
org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderModule(DefaultSiteRenderer.java:317)
at
org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.render(DefaultSiteRenderer.java:134)
at
org.apache.maven.plugins.site.SiteMojo.renderLocale(SiteMojo.java:175)
at
org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:138)
... 21 more
Caused by: org.apache.velocity.exception.MethodInvocationException:
Invocation of method 'calculateLink' in class
org.codehaus.plexus.util.PathTool threw exception
java.lang.NullPointerException @
org/apache/maven/doxia/siterenderer/resources/default-site.vm[2,39]
at
org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:286)
at
org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:203)
at
org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:419)
at
org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:73)
at
org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:125)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at
org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:194)
at
org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at
org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at
org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
at
org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at
org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at
org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at
org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
at
org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at
org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:194)
at
org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.Template.merge(Template.java:254)
at
org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.processTemplate(DefaultSiteRenderer.java:562)
... 28 more
Caused by: java.lang.NullPointerException
at
org.codehaus.plexus.util.PathTool.calculateLink(PathTool.java:197)
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.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:295)
at
org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:245)
... 49 more
[ERROR]
[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/MojoExecutionException
--
Thomas Scheffler
Friedrich-Schiller-Universität Jena
Thüringer Universitäts- und Landesbibliothek
Bibliotheksplatz 2
07743 Jena
Phone: ++49 3641 940027
FAX: ++49 3641 940022
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