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https://issues.apache.org/jira/browse/IVY-1325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13176715#comment-13176715
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David Goblirsch commented on IVY-1325:
--------------------------------------
Yes, thank you Maarten, that fixed the problem. I can now
run heavy parallel builds and have not seen the error
recur since moving to 2.2.1.alpha_20111225190156.
Thanks so much!
> ivy:report ant task intermittently "cannot compile stylesheet"
> --------------------------------------------------------------
>
> Key: IVY-1325
> URL: https://issues.apache.org/jira/browse/IVY-1325
> Project: Ivy
> Issue Type: Bug
> Affects Versions: 2.2.0
> Environment: ivy-2.2.jar, Sun jdk 1.5 and 1.6 for compiling, Jenkins
> 1.436 as CI server, ant 1.8.2, Linux, Jenkins ivy plugin 1.20
> Reporter: David Goblirsch
>
> Setup:
> o Using ivy-2.2.jar.
> o Compiling with Sun jdk versions 1.5 or 1.6 (project dependent) on a Linux
> box.
> o Running ant 1.8.2 via a wrapper script inside Jenkins 1.436 with 5 or so
> executors. That is, each build invokes a simple custom wrapper-script
> around
> Ant that puts some custom tasks and ivy-2.2 on the build classpath.
> o Jenkins Ivy plugin version is version 1.20 which uses ivy 2.2.0 internally.
> Problem:
> We hit this error perhaps 8 % of the builds when there are several
> parallel builds happening:
> javax.xml.transform.TransformerConfigurationException: Could not compile
> stylesheet
> at
> com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl.newTemplates(TransformerFactoryImpl.java:828)
> at
> com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl.newTransformer(TransformerFactoryImpl.java:617)
> at org.apache.ivy.ant.IvyReport.genStyled(IvyReport.java:322)
> at org.apache.ivy.ant.IvyReport.genreport(IvyReport.java:248)
> at org.apache.ivy.ant.IvyReport.doExecute(IvyReport.java:211)
> at org.apache.ivy.ant.IvyTask.execute(IvyTask.java:277)
> :
> :
> The build always runs fine for a single job when invoked from the
> command line, and 99.9% of the time runs fine when the Jenkins job is
> requeued. But when it happens during parallel builds, the error
> message is always the same and always in exactly the same spot in
> IvyReport.java.
> The relevant ant task is this (we are behind a firewall so retrieves
> never go out to the internet, all resolvers are FileSystem resolvers,
> which explains some of the attribute values):
> <macrodef name="resolve-dependencies">
> <attribute name="ivyconfig"/>
> <sequential>
> <ivy:resolve
> conf="@{ivyconfig}"
> log="${option.ivy.log}"
> resolveMode="dynamic"
> showprogress="false"
> checkIfChanged="false"
> />
> <ivy:retrieve
> conf="@{ivyconfig}"
> log="${option.ivy.log}"
> pattern="${ivy.lib.dir}/@{ivyconfig}/[artifact](-[revision]).[ext]"
> symlink="true"
> sync="true"
> />
> <ivy:report <---------------- INTERMITTENT
> FAILURE DURING THIS TASK
> conf="@{ivyconfig}"
> dot="${option.ivyreport.dot}" <--- false on Jenkins,
> settable for indiv developer
> graph="${option.ivyreport.graphml}" <--- false on Jenkins,
> settable for indiv developer
> outputpattern="dependencies-[conf].[ext]"
> todir="${dir.build}/report"
> />
> </sequential>
> </macrodef>
> As you can see from the code, we are not using our own stylesheet, but
> the one in the ivy distribution.
> The code in IvyReport.java looks ok to me but I am not a TRaX user and
> certainly no expert on it so it is not clear to me why occasionally we
> get this "cannot compile stylesheet" error. And we only get it when
> many builds are happening in parallel, never for one-build-at-a-time,
> which makes me wonder if there is some issue with grabbing resources
> from inside a jar, something I do not do myself.
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