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Month: March 2014

Remote debug a Tomcat Webapp

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When developing a Tomcat web application I use the tomcat:deploy and tomcat-redeploy Maven targets to publish a new version of the webapp towards Tomcat. Not using
an IDE plugin which automatically connects to Tomcat forces me to do it manually. This is pretty easy!

catalina.sh / catalina.bat startup script

You can use the the catalina.sh (on Linux) or catalina.bat (on Windows) to control how Tomcat starts up. This script can be found in the bin folder of your Tomcat installation. Add the parameters jpda start to the script to start Tomcat
in its debug mode. In Windows, the complete command is:

catalina.bat jpda start

Under Linux it is:

./catalina.sh jpda start

Debugging

On startup Tomcat should now show a message similar to:

Listening for transport dt_socket at address: 8000

This means that Tomcat has started and listens at port 8000 for remote debug connections. You can now use your Java IDEs Remote Debug capabilities to connect remotely and set breakpoints and such in your IDE.

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Let Jenkins ignore shell script return code

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In a build preparation script I had a shell command that was executed. This command set some permissions, but would fail if the folder to set the permissions on would not exist. If the folder does not exist it would fail the build
because the permissions command would fail. I was looking for a way to ignore that, because the settings of the permissions would only fail if the workspace was cleaned and the file would be created later on in the build process
with the correct permissions.

In a Google Group post I found the solution, append || true to the command:

chmod 777 file.xml || true

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Jenkins reports error on SVN update

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One day a Jenkins server I use for Continuous Integration stopped updating code from SVN repositories. It reported an error ERROR: Failed to update https://svn.matuera.net/svn/project whilst throwing an SVNException.

In this post I describe how I was able to fix the problem and let the builds continue.

Stacktrace

The stacktrace that Jenkins reported was:

ERROR: Failed to update https://svn.daangemist.nl/svn/project
org.tmatesoft.svn.core.SVNException: svn: E175002: OPTIONS /svn/project failed
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:379)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:364)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:352)
    at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.performHttpRequest(DAVConnection.java:708)
    at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.exchangeCapabilities(DAVConnection.java:628)
    at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.open(DAVConnection.java:103)
    at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.openConnection(DAVRepository.java:1018)
    at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.getRepositoryUUID(DAVRepository.java:148)
    at org.tmatesoft.svn.core.internal.wc2.SvnRepositoryAccess.createRepository(SvnRepositoryAccess.java:106)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgRepositoryAccess.createRepository(SvnNgRepositoryAccess.java:210)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgAbstractUpdate.updateInternal(SvnNgAbstractUpdate.java:144)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgAbstractUpdate.update(SvnNgAbstractUpdate.java:76)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgUpdate.run(SvnNgUpdate.java:38)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgUpdate.run(SvnNgUpdate.java:18)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgOperationRunner.run(SvnNgOperationRunner.java:20)
    at org.tmatesoft.svn.core.internal.wc2.SvnOperationRunner.run(SvnOperationRunner.java:20)
    at org.tmatesoft.svn.core.wc2.SvnOperationFactory.run(SvnOperationFactory.java:1235)
    at org.tmatesoft.svn.core.wc2.SvnOperation.run(SvnOperation.java:291)
    at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:311)
    at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:291)
    at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:387)
    at hudson.scm.subversion.UpdateUpdater$TaskImpl.perform(UpdateUpdater.java:143)
    at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:153)
    at hudson.scm.SubversionSCM$CheckOutTask.perform(SubversionSCM.java:903)
    at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:884)
    at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:867)
    at hudson.FilePath.act(FilePath.java:909)
    at hudson.FilePath.act(FilePath.java:882)
    at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:843)
    at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:781)
    at hudson.model.AbstractProject.checkout(AbstractProject.java:1408)
    at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:657)
    at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
    at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:562)
    at hudson.model.Run.execute(Run.java:1603)
    at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
    at hudson.model.ResourceController.execute(ResourceController.java:88)
    at hudson.model.Executor.run(Executor.java:246)
Caused by: svn: E175002: OPTIONS /svn/project failed
    at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:208)
    at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:154)
    at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:97)
    ... 38 more
Caused by: org.tmatesoft.svn.core.SVNException: svn: E175002: OPTIONS request failed on '/svn/project'
svn: E175002: Received fatal alert: bad_record_mac
    at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:64)
    at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:51)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:754)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:373)
    ... 37 more
Caused by: svn: E175002: OPTIONS request failed on '/svn/project'
    at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:208)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:752)
    ... 38 more
Caused by: svn: E175002: Received fatal alert: bad_record_mac
    at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:109)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:505)
    ... 38 more
Caused by: javax.net.ssl.SSLException: Received fatal alert: bad_record_mac
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:154)
    at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:1781)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1024)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1208)
    at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:674)
    at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:119)
    at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
    at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.sendData(HTTPConnection.java:313)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPRequest.dispatch(HTTPRequest.java:168)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:460)
    ... 38 more
ERROR: Subversion update failed
java.io.IOException
    at hudson.scm.subversion.UpdateUpdater$TaskImpl.perform(UpdateUpdater.java:184)
    at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:153)
    at hudson.scm.SubversionSCM$CheckOutTask.perform(SubversionSCM.java:903)
    at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:884)
    at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:867)
    at hudson.FilePath.act(FilePath.java:909)
    at hudson.FilePath.act(FilePath.java:882)
    at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:843)
    at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:781)
    at hudson.model.AbstractProject.checkout(AbstractProject.java:1408)
    at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:657)
    at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
    at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:562)
    at hudson.model.Run.execute(Run.java:1603)
    at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
    at hudson.model.ResourceController.execute(ResourceController.java:88)
    at hudson.model.Executor.run(Executor.java:246)
Caused by: hudson.scm.subversion.UpdaterException: failed to perform svn update
    ... 17 more
Caused by: org.tmatesoft.svn.core.SVNException: svn: E175002: OPTIONS /svn/project failed
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:379)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:364)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:352)
    at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.performHttpRequest(DAVConnection.java:708)
    at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.exchangeCapabilities(DAVConnection.java:628)
    at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.open(DAVConnection.java:103)
    at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.openConnection(DAVRepository.java:1018)
    at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.getRepositoryUUID(DAVRepository.java:148)
    at org.tmatesoft.svn.core.internal.wc2.SvnRepositoryAccess.createRepository(SvnRepositoryAccess.java:106)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgRepositoryAccess.createRepository(SvnNgRepositoryAccess.java:210)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgAbstractUpdate.updateInternal(SvnNgAbstractUpdate.java:144)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgAbstractUpdate.update(SvnNgAbstractUpdate.java:76)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgUpdate.run(SvnNgUpdate.java:38)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgUpdate.run(SvnNgUpdate.java:18)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgOperationRunner.run(SvnNgOperationRunner.java:20)
    at org.tmatesoft.svn.core.internal.wc2.SvnOperationRunner.run(SvnOperationRunner.java:20)
    at org.tmatesoft.svn.core.wc2.SvnOperationFactory.run(SvnOperationFactory.java:1235)
    at org.tmatesoft.svn.core.wc2.SvnOperation.run(SvnOperation.java:291)
    at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:311)
    at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:291)
    at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:387)
    at hudson.scm.subversion.UpdateUpdater$TaskImpl.perform(UpdateUpdater.java:143)
    ... 16 more
Caused by: svn: E175002: OPTIONS /svn/project failed
    at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:208)
    at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:154)
    at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:97)
    ... 38 more
Caused by: org.tmatesoft.svn.core.SVNException: svn: E175002: OPTIONS request failed on '/svn/project'
svn: E175002: Received fatal alert: bad_record_mac
    at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:64)
    at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:51)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:754)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:373)
    ... 37 more
Caused by: svn: E175002: OPTIONS request failed on '/svn/project'
    at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:208)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:752)
    ... 38 more
Caused by: svn: E175002: Received fatal alert: bad_record_mac
    at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:109)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:505)
    ... 38 more
Caused by: javax.net.ssl.SSLException: Received fatal alert: bad_record_mac
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:154)
    at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:1781)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1024)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1208)
    at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:674)
    at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:119)
    at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
    at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.sendData(HTTPConnection.java:313)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPRequest.dispatch(HTTPRequest.java:168)
    at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:460)
    ... 38 more

Initial research

At first I thought it had something to do with credentials or the Jenkins version, but checkout as the jenkins user from commandline did work. Also updating Jenkins did not resolve the issue.
Some research taught me that this problem only appears on Java 6 and is caused by the underlying SVNKit svn library used: 1, 2, 3 and 4.

The solution

In most posts the solution described is either upgrading the java version or by supplying an additional parameter at Jenkins startup to force SVNKit to work a bit differently. I do not know the exact effect it has
in SVNKit, but it does work. The Jenkins version I use on CentOS is started by a init-script in /etc/init.d/jenkins. I replaced the following line that starts Jenkins with:

JAVA_CMD="$JENKINS_JAVA_CMD $JENKINS_JAVA_OPTIONS -DJENKINS_HOME=$JENKINS_HOME -jar $JENKINS_WAR"

With:

JAVA_CMD="$JENKINS_JAVA_CMD $JENKINS_JAVA_OPTIONS -Dsvnkit.http.sslProtocols="SSLv3" -DJENKINS_HOME=$JENKINS_HOME -jar $JENKINS_WAR"

This solved the problem and allowed Jenkins to update normally.

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