I have a project that does not have a very large number of CheckStyle issues
(less than 6500). Building it using Maven on the command line does not have any
issues. However, when I build it using the Maven runner in Hudson, I get an
OutOfMemoryError. I have tried using -Xmx768M and -XX:MaxPermSize=256M when I
start tomcat, but they have not seemed to fix the problem. The stack trace does
not seem to be the same between runs.

[INFO] Generating "Checkstyle" report.
[WARNING] File encoding has not been set, using platform encoding
ANSI_X3.4-1968, i.e. build is platform dependent!
[INFO] There are 295 checkstyle errors.

<snip/>

[INFO] Generating "Project Team" report.
[PMD] Successfully parsed file
/var/lib/hudson/jobs/endx_nightly/workspace/src/endx-webapp/target/pmd.xml of
module enDx Web App with 235 warnings.
[PMD] A total of 235 annotations have been found.
[CHECKSTYLE] Successfully parsed file
/var/lib/hudson/jobs/endx_nightly/workspace/src/endx-webapp/target/checkstyle-result.xml
of module enDx Web App with 6293 warnings.
[HUDSON] Archiving
/var/lib/hudson/jobs/endx_nightly/workspace/src/endx-webapp/pom.xml to <snip/>
[HUDSON] Archiving
/var/lib/hudson/jobs/endx_nightly/workspace/src/endx-webapp/target/endx-webapp.war
to <snip/>
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Java heap space
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.OutOfMemoryError: Java heap space
at java.util.HashSet.<init>(HashSet.java:86)
at
hudson.plugins.checkstyle.util.model.AnnotationContainer.addType(AnnotationContainer.java:205)
at
hudson.plugins.checkstyle.util.model.AnnotationContainer.updateMappings(AnnotationContainer.java:167)
at
hudson.plugins.checkstyle.util.model.AnnotationContainer.addAnnotation(AnnotationContainer.java:262)
at
hudson.plugins.checkstyle.util.model.AnnotationContainer.addFile(AnnotationContainer.java:252)
at
hudson.plugins.checkstyle.util.model.AnnotationContainer.updateMappings(AnnotationContainer.java:176)
at
hudson.plugins.checkstyle.util.model.AnnotationContainer.addAnnotation(AnnotationContainer.java:262)
at
hudson.plugins.checkstyle.util.model.AnnotationContainer.addModule(AnnotationContainer.java:222)
at
hudson.plugins.checkstyle.util.model.AnnotationContainer.updateMappings(AnnotationContainer.java:170)
at
hudson.plugins.checkstyle.util.model.AnnotationContainer.addAnnotation(AnnotationContainer.java:262)
at
hudson.plugins.checkstyle.util.model.AnnotationContainer.addAnnotations(AnnotationContainer.java:272)
at hudson.plugins.checkstyle.util.model.JavaProject.addModule(JavaProject.java:46)
at hudson.plugins.checkstyle.util.FilesParser.invoke(FilesParser.java:94)
at hudson.plugins.checkstyle.util.FilesParser.invoke(FilesParser.java:22)
at hudson.FilePath.act(FilePath.java:315)
at hudson.plugins.checkstyle.CheckStyleReporter.perform(CheckStyleReporter.java:65)
at
hudson.plugins.checkstyle.util.HealthAwareMavenReporter.postExecute(HealthAwareMavenReporter.java:125)
at
hudson.maven.MavenModuleSetBuild$Builder.postExecute(MavenModuleSetBuild.java:585)
at hudson.maven.MavenBuilder$Adapter.postExecute(MavenBuilder.java:250)
at
hudson.maven.agent.PluginManagerInterceptor$1MojoConfig.callPost(PluginManagerInterceptor.java:104)
at
hudson.maven.agent.PluginManagerInterceptor.executeMojo(PluginManagerInterceptor.java:137)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:558)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:499)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:478)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:330)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:291)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142)
at
org.apache.maven.lifecycle.LifecycleExecutorInterceptor.execute(LifecycleExecutorInterceptor.java:42)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:287)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)