Maybe I missed the JIRA you opened, but I ran into this problem again over the weekend.
FWIW I hit the problem with Ubuntu 8.10, 64 bit with either the IBM SDK or Sun JDK. I didn't try openjdk. The problem for me had nothing to do with ant, that was a complete red herring. It turned out to be due to my own lack of *nix knowledge. I ran ulimit which returned "unlimited" so I thought I was in good shape. It turns out that I needed to run "ulimit -n" which returned 1024. This can be increased by editing /etc/security/limits.conf. A newbie friendly reference is available at [1]. Increasing the limit resolved the problem for me, YMMV. [1] http://lj4newbies.blogspot.com/2007/04/too-many-open-files.html Regards, -mike On Thu, Feb 5, 2009 at 6:30 PM, Tim McConnell <[email protected]> wrote: > 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 <[email protected]> >> 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 >
