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From Tim McConnell <tim.mcco...@gmail.com>
Subject Re: Enhancer questions/problems
Date Fri, 06 Feb 2009 00:30:39 GMT
Hi Mike, thanks for the information. I'll open a JIRA and investigate.....

Michael Dick wrote:
> My guess, and it's only that, is that we're hitting an issue with ant. I
> think it is or is related to this bug :
> https://issues.apache.org/bugzilla/show_bug.cgi?id=38260.
> 
> On Linux I've seen similar intermittent problems (mainly with trunk) that
> show the "too many open files" symptom described in the bugzilla report.
> 
> I have not seen the errors if I manually update pom.xml to use ant 1.7.0 but
> that might just be luck.
> 
> Regarding the enhancer there's information in the OpenJPA manual regarding
> what enhancement does [1]. Regarding the enhancement process during the
> build I'm not sure why the build doesn't fail after that exception. There
> might be a bug in the way we're using the antrun maven plugin or a bug in
> enhancer.xml.. I
> 
> [1]
> http://openjpa.apache.org/builds/latest/docs/manual/ref_guide_pc_enhance.html
> 
> -mike
> 
> On Thu, Feb 5, 2009 at 4:40 PM, Tim McConnell <tim.mcconne@gmail.com> wrote:
> 
>> Hi, I notice that occasionally when I build various versions of OpenJPA
>> (e.g., trunk, branches\1.2.x, tags\1.2.0) the enhance.all.entities ant step
>> will getting many numerous ZipException's (see below). So I was just
>> wondering if anyone knew what might be causing this ?? And why the build
>> doesn't stop when it does happen ?? I guess I don't yet know enough about
>> the "enhancer" to fully appreciate/understand what it does, but I would have
>> expected the build to fail and stop immediately..... Thanks....
>>
>>
>>
>> [INFO] [jar:jar]
>> [INFO] Building jar:
>>
>> C:\SVN\OPENJPA\tags\1.2.0\openjpa-persistence\target\openjpa-persistence-1.2.0.jar
>> [INFO] [install:install]
>> [INFO] Installing
>>
>> C:\SVN\OPENJPA\tags\1.2.0\openjpa-persistence\target\openjpa-persistence-1.2.0.jar
>> to
>> C:\M2\org\apache\openjpa\openjpa-persistence\1.2.0\openjpa-persistence-1.2.0.jar
>> [INFO]
>> ------------------------------------------------------------------------
>> [INFO] Building OpenJPA JPA JDBC
>> [INFO]    task-segment: [install]
>> [INFO]
>> ------------------------------------------------------------------------
>> [INFO] [resources:resources]
>> [INFO] Using default encoding to copy filtered resources.
>> [INFO] [compiler:compile]
>> [INFO] Compiling 65 source files to
>> C:\SVN\OPENJPA\tags\1.2.0\openjpa-persistence-jdbc\target\classes
>> [INFO] [resources:testResources]
>> [INFO] Using default encoding to copy filtered resources.
>> [INFO] [compiler:testCompile]
>> [INFO] Compiling 1185 source files to
>> C:\SVN\OPENJPA\tags\1.2.0\openjpa-persistence-jdbc\target\test-classes
>> [INFO] [antrun:run {execution: default}]
>> [INFO] Executing tasks
>>
>> enhance:
>>
>> enhance.all.entities:
>>     [echo]  running enhancer
>> java.util.zip.ZipException: error in opening zip file
>>        at java.util.zip.ZipFile.open(Native Method)
>>        at java.util.zip.ZipFile.<init>(ZipFile.java:203)
>>        at java.util.zip.ZipFile.<init>(ZipFile.java:234)
>>        at
>> org.apache.tools.ant.AntClassLoader.getResourceURL(AntClassLoader.java:919)
>>        at
>>
>> org.apache.tools.ant.AntClassLoader$ResourceEnumeration.findNextResource(AntClassLoader.java:126)
>>        at
>>
>> org.apache.tools.ant.AntClassLoader$ResourceEnumeration.nextElement(AntClassLoader.java:109)
>>        at
>>
>> org.apache.tools.ant.util.CollectionUtils$CompoundEnumeration.nextElement(CollectionUtils.java:146)
>>        at
>> sun.misc.CompoundEnumeration.nextElement(CompoundEnumeration.java:43)
>>        at
>> org.apache.openjpa.lib.util.Services.getImplementors(Services.java:99)
>>        at
>> org.apache.openjpa.lib.util.Services.getImplementors(Services.java:71)
>>        at
>>
>> org.apache.openjpa.lib.conf.ProductDerivations.<clinit>(ProductDerivations.java:57)
>>        at
>> org.apache.openjpa.conf.BrokerFactoryValue.<clinit>(BrokerFactoryValue.java:50)
>>        at
>>
>> org.apache.openjpa.conf.OpenJPAConfigurationImpl.<init>(OpenJPAConfigurationImpl.java:188)
>>        at
>>
>> org.apache.openjpa.conf.OpenJPAConfigurationImpl.<init>(OpenJPAConfigurationImpl.java:164)
>>        at
>>
>> org.apache.openjpa.conf.OpenJPAConfigurationImpl.<init>(OpenJPAConfigurationImpl.java:155)
>>        at
>> org.apache.openjpa.ant.PCEnhancerTask.newConfiguration(PCEnhancerTask.java:80)
>>        at
>> org.apache.openjpa.lib.ant.AbstractTask.getConfiguration(AbstractTask.java:97)
>>        at
>> org.apache.openjpa.lib.ant.AbstractTask.createConfig(AbstractTask.java:151)
>>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>        at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>        at
>>
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>        at java.lang.reflect.Method.invoke(Method.java:585)
>>        at
>>
>> org.apache.tools.ant.IntrospectionHelper$CreateNestedCreator.create(IntrospectionHelper.java:1244)
>>        at
>>
>> org.apache.tools.ant.IntrospectionHelper$Creator.create(IntrospectionHelper.java:1145)
>>        at
>> org.apache.tools.ant.UnknownElement.handleChild(UnknownElement.java:549)
>>        at
>> org.apache.tools.ant.UnknownElement.handleChildren(UnknownElement.java:326)
>>        at
>> org.apache.tools.ant.UnknownElement.configure(UnknownElement.java:182)
>>        at
>> org.apache.tools.ant.UnknownElement.maybeConfigure(UnknownElement.java:158)
>>        at org.apache.tools.ant.Task.perform(Task.java:363)
>>        at org.apache.tools.ant.Target.execute(Target.java:341)
>>        at org.apache.tools.ant.Target.performTasks(Target.java:369)
>>        at
>> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
>>        at
>>
>> org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:37)
>>        at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
>>        at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:382)
>>        at
>> org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:107)
>>        at
>> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
>>        at org.apache.tools.ant.Task.perform(Task.java:364)
>>        at org.apache.tools.ant.Target.execute(Target.java:341)
>>        at org.apache.tools.ant.Target.performTasks(Target.java:369)
>>        at
>> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
>>        at
>>
>> org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:37)
>>        at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
>>        at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:382)
>>        at
>> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
>>        at org.apache.tools.ant.Task.perform(Task.java:364)
>>        at org.apache.tools.ant.Target.execute(Target.java:341)
>>        at
>>
>> org.apache.maven.plugin.antrun.AbstractAntMojo.executeTasks(AbstractAntMojo.java:108)
>>        at
>> org.apache.maven.plugin.antrun.AntRunMojo.execute(AntRunMojo.java:83)
>>        at
>>
>> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:451)
>>        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.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:39)
>>        at
>>
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>        at java.lang.reflect.Method.invoke(Method.java:585)
>>        at
>> org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>>        at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>>        at
>> org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>>        at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
>>
>>
>> --
>> Thanks,
>> Tim McConnell
>>
>>
>>
> 

-- 
Thanks,
Tim McConnell

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