I have a "maven2/3 project" job. This job is configured to run nightly and only runs the site goal.

The site generation works and completes successfully, but at random points in the build the following will appear in the logs:

[HUDSON] Archiving site from /home/hudson/jobs/prod_trunk_site/workspace/dev/generator/target/site to /home/hudson/jobs/prod_trunk_site/site/generator
FATAL: Unable to copy site from /home/hudson/jobs/prod_trunk_site/workspace/dev/generator/target/site to /home/hudson/jobs/prod_trunk_site/site/generator
hudson.util.IOException2: java.lang.IllegalArgumentException: Negative time
at hudson.FilePath.copyRecursiveTo(FilePath.java:1508)
at hudson.FilePath.copyRecursiveTo(FilePath.java:1433)
at hudson.maven.reporters.MavenSiteArchiver.postExecute(MavenSiteArchiver.java:81)
at hudson.maven.MavenModuleSetBuild$Builder.postExecute(MavenModuleSetBuild.java:950)
at hudson.maven.MavenBuilder$Adapter.postExecute(MavenBuilder.java:336)
at hudson.maven.agent.PluginManagerInterceptor$1MojoIntercepterImpl.callPost(PluginManagerInterceptor.java:170)
at hudson.maven.agent.PluginManagerInterceptor.executeMojo(PluginManagerInterceptor.java:183)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:558)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:499)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:478)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:330)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:291)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142)
at org.apache.maven.lifecycle.LifecycleExecutorInterceptor.execute(LifecycleExecutorInterceptor.java:65)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:287)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at hudson.maven.agent.Main.launch(Main.java:173)
at hudson.maven.MavenBuilder.call(MavenBuilder.java:164)
at hudson.maven.MavenModuleSetBuild$Builder.call(MavenModuleSetBuild.java:872)
at hudson.maven.MavenModuleSetBuild$Builder.call(MavenModuleSetBuild.java:803)
at hudson.remoting.UserRequest.perform(UserRequest.java:114)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:270)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)
Caused by: java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Negative time
at hudson.remoting.Channel$2.adapt(Channel.java:662)
at hudson.remoting.Channel$2.adapt(Channel.java:657)
at hudson.remoting.FutureAdapter.get(FutureAdapter.java:55)
at hudson.FilePath.copyRecursiveTo(FilePath.java:1506)
... 35 more
Caused by: java.lang.IllegalArgumentException: Negative time
at java.io.File.setLastModified(File.java:1272)
at hudson.FilePath.readFromTar(FilePath.java:1600)
at hudson.FilePath.access$100(FilePath.java:162)
at hudson.FilePath$32.invoke(FilePath.java:1497)
at hudson.FilePath$32.invoke(FilePath.java:1494)
at hudson.FilePath$FileCallableWrapper.call(FilePath.java:1931)
... 9 more