The following error showed up in all of my builds using the build timeout plugin
today - restarting Hudson fixed it, but I wanted to note this so that it can get
fixed.

ERROR: Processing failed due to a bug in the code. Please report this to
users@hudson.dev.java.net
java.lang.IllegalStateException: Timer already cancelled.
at java.util.Timer.sched(Timer.java:354)
at java.util.Timer.schedule(Timer.java:170)
at
hudson.plugins.build_timeout.BuildTimeoutWrapper$1EnvironmentImpl.<init>(BuildTimeoutWrapper.java:46)
at
hudson.plugins.build_timeout.BuildTimeoutWrapper.setUp(BuildTimeoutWrapper.java:55)
at hudson.maven.MavenModuleSetBuild$RunnerImpl.doRun(MavenModuleSetBuild.java:333)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:272)
at hudson.model.Run.run(Run.java:927)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:234)
at hudson.model.ResourceController.execute(ResourceController.java:93)
at hudson.model.Executor.run(Executor.java:119)
project=hudson.maven.MavenModuleSet@404baf[ccbu-java-commons]
project.getModules()=[hudson.maven.MavenModule@c5575[ccbu-java-commons/com.cisco.ccbu.java-commons:ccbu-auth],
hudson.maven.MavenModule@1be8bf1[ccbu-java-commons/com.cisco.ccbu.java-commons:ccbu-common],
hudson.maven.MavenModule@d591a6[ccbu-java-commons/com.cisco.ccbu.java-commons:ccbu-common-dp],
hudson.maven.MavenModule@14d6015[ccbu-java-commons/com.cisco.ccbu.java-commons:ccbu-common-subsystem],
hudson.maven.MavenModule@df39bc[ccbu-java-commons/com.cisco.ccbu.java-commons:ccbu-java-commons-project],
hudson.maven.MavenModule@147788d[ccbu-java-commons/com.cisco.ccbu.java-commons:ccbu-wsc-cli],
hudson.maven.MavenModule@13b8f62[ccbu-java-commons/com.cisco.ccbu.java-commons:ccbu-wsm],
hudson.maven.MavenModule@1429498[ccbu-java-commons/com.cisco.ccbu.java-commons:cisco-junit-util],
hudson.maven.MavenModule@299629[ccbu-java-commons/com.cisco.ccbu.java-commons:cisco-util]]
project.getRootModule()=hudson.maven.MavenModule@df39bc[ccbu-java-commons/com.cisco.ccbu.java-commons:ccbu-java-commons-project]
FATAL: Timer already cancelled.
java.lang.IllegalStateException: Timer already cancelled.
at java.util.Timer.sched(Timer.java:354)
at java.util.Timer.schedule(Timer.java:170)
at
hudson.plugins.build_timeout.BuildTimeoutWrapper$1EnvironmentImpl.<init>(BuildTimeoutWrapper.java:46)
at
hudson.plugins.build_timeout.BuildTimeoutWrapper.setUp(BuildTimeoutWrapper.java:55)
at hudson.maven.MavenModuleSetBuild$RunnerImpl.doRun(MavenModuleSetBuild.java:333)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:272)
at hudson.model.Run.run(Run.java:927)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:234)
at hudson.model.ResourceController.execute(ResourceController.java:93)
at hudson.model.Executor.run(Executor.java:119)