Unable to delete pom.xml in Jenkins under Tomcat/Windows

Question

I've been struggling with an annoying "Jenkins/Tomcat/Windows" problem for a while now without reaching any solution.

I've installed Tomcat version 7.0.25 in a Windows 7 Enterprise machine and Jenkins 1.451 as a webapplication running under Tomcat. I have just 4 jobs configured right now and all of then are using the "Always chekout a fresh copy" checkout strategy, so everytime a job runs the content in /jobs//workspace gets deleted. But, there are situations in which the job fails to run because it is unable to delete the /jobs//workspace/pom.xml file like you can see in this (edited) stacktrace:

Building in workspace C:\.hudson\jobs\<task name>\workspace
Cleaning local Directory .
java.io.IOException: Unable to delete C:\.hudson\jobs\<task name>\workspace\.\pom.xml
    at hudson.Util.deleteFile(Util.java:237)
    at hudson.Util.deleteRecursive(Util.java:287)
    at hudson.Util.deleteContentsRecursive(Util.java:198)
    at hudson.scm.subversion.CheckoutUpdater$1.perform(CheckoutUpdater.java:73)
    at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:136)
    at hudson.scm.SubversionSCM$CheckOutTask.perform(SubversionSCM.java:780)
    at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:761)
    at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:745)
    at hudson.FilePath.act(FilePath.java:788)
    at hudson.FilePath.act(FilePath.java:770)
    at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:735)
    at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:677)
    at hudson.model.AbstractProject.checkout(AbstractProject.java:1195)
    at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:576)
    at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:465)
    at hudson.model.Run.run(Run.java:1409)
    at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:481)
    at hudson.model.ResourceController.execute(ResourceController.java:88)
    at hudson.model.Executor.run(Executor.java:238)
Retrying after 10 seconds

Here you can see Tomcat locking the file as I told:

Tomcat locking pom.xml

After some time Jenkins/Tomcat releases the lock on the pom.xml and i can execute the job again without any problem.

Does anyone know how to get around this ? Am i missing something ? Thanks in advance!

Hi altanis, i am using this one: 'java version "1.6.0_18" Java(TM) SE Runtime Environment (build 1.6.0_18-b07) Java HotSpot(TM) Client VM (build 16.0-b13, mixed mode, sharing)' — ederribeiro
This is pretty strange behavior. Please try updating java (try not to pick beta versions) and adding "-server" option to the JVM. — Sebastian Łaskawiec
Hi altanis, i've finally been able to follow your suggestions, but, unfortunately, with no success. I am using now the latest version of Java 6 (update 31) and running it as server and still i see the pom files getting locked. — ederribeiro
I am having the same issue. Seems in Windows the pom.xml being locked for some period. — Rudy

Rudy Rudy · Accepted Answer · 2012-08-15T02:49:24

I changed to Windows Service installation, and the pom.xml never gets locked anymore.

Seems that this caused by Tomcat that somehow locks the pom.xml, although the build has finished.

Unable to delete pom.xml in Jenkins under Tomcat/Windows

1 Answers