This looks like a bug to me. Could you open a bug? If possible, please
supply a test case, else describe the situation as much as possible for
someone to be able to reproduce.
Thanks,
Sahoo
On Tuesday 05 March 2013 01:30 PM, forums_at_java.net wrote:
> Hi, I have a problem with my webapps once in a while deploys with a
> ConcurrentModificationException when it tries to read a resource. For
> some
> reason we cant figure out, the delegates list in Glassfish
> DelegatingClassLoader.java is modified while we are reading it. We are
> using
> Glassfish 3.1.2 and deploying several webapps and as far as we have
> seen, it
> is always the same one(the first) that has this problem. The rows I have
> problem with in my code are in two different places, the first one is
> the one
> that causes the Exception below, the second one causes a similar
> exception in
> another area in the code, same root cause: JarDeployer: URLClassLoader
> classLoader = new URLClassLoader(new URL[] { jarFile.toURI().toURL() },
> Thread.currentThread().getContextClassLoader()); URL url =
> classLoader.getResource(MOAPPLICATION_CONTEXT_NAME); //This is where it
> causes an exception in like one out of 20 times. SimpleAuthorization: URL
> policyUrl =
> this.policyTargetFinderModule.getClass().getResource("/com/company/dve/security/xacml/dve-authorization-policy-spid.xml");
>
> // Second line that causes the same problem, even more rarely. Exception:
> 2013-02-28 16:35:55,330 [gerDeployThread] ERROR
> [com.company.dve.core.assembly.deploy.DeployManager] Could not deploy
> file:
> /home/asuser/nodes/10/domains/dve-domain/config/dve/deploy/JDV-HLR-Subscriber-Provisioning-1.0.0.jar
>
> com.company.dve.common.DVEException: Error while deploying component.
> Could
> not read application context 'META-INF/managedobjects-descriptor.xml'
> from
> JAR file
> '/home/asuser/nodes/10/domains/dve-domain/config/dve/tmp/JDV-HLR-Subscriber-Provisioning-1.0.06816300804817707763.jar'
>
> at
> com.company.dve.core.assembly.deploy.JarDeployer.loadMoApplicationContext(JarDeployer.java:570)
>
> at
> com.company.dve.core.assembly.deploy.JarDeployer.registerManagedObjects(JarDeployer.java:458)
>
> at
> com.company.dve.core.assembly.deploy.JavaDataViewDeployer.deploy(JavaDataViewDeployer.java:92)
>
> at
> com.company.dve.core.assembly.deploy.DeployManager$DeploymentInfo.deploy(DeployManager.java:112)
>
> at
> com.company.dve.core.assembly.deploy.DeployManager$DeploymentInfo.access$1000(DeployManager.java:91)
>
> at
> com.company.dve.core.assembly.deploy.DeployManager.deployNewFile(DeployManager.java:578)
>
> at
> com.company.dve.core.assembly.deploy.DeployManager.scanDeployDir(DeployManager.java:553)
>
> at
> com.company.dve.core.assembly.deploy.DeployManager$DeployThread.run(DeployManager.java:230)
>
> Caused by:
> org.springframework.beans.factory.BeanDefinitionStoreException:
> Unexpected exception parsing XML document from file
> [/cluster/home/asuser/nodes/10/domains/dve-domain/config/managedobjects-descriptor-tmp.xml];
>
> nested exception is java.util.ConcurrentModificationException at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:412)
>
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
>
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
>
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)
>
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)
>
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)
>
> at
> org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:212)
>
> at
> org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:126)
>
> at
> org.apache.xbean.spring.context.FileSystemXmlApplicationContext.loadBeanDefinitions(FileSystemXmlApplicationContext.java:168)
>
> at
> org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
>
> at
> org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:467)
>
> at
> org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:397)
>
> at
> org.apache.xbean.spring.context.FileSystemXmlApplicationContext.(FileSystemXmlApplicationContext.java:149)
>
> at
> org.apache.xbean.spring.context.FileSystemXmlApplicationContext.(FileSystemXmlApplicationContext.java:48)
>
> at
> com.company.dve.core.assembly.deploy.JarDeployer.loadMoApplicationContext(JarDeployer.java:543)
>
> ... 7 more Caused by: java.util.ConcurrentModificationException at
> java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
> at
> java.util.AbstractList$Itr.next(AbstractList.java:343) at
> org.glassfish.internal.api.DelegatingClassLoader.findResources(DelegatingClassLoader.java:208)
>
> at java.lang.ClassLoader.getResources(ClassLoader.java:1040) at
> org.glassfish.web.loader.WebappClassLoader.getResources(WebappClassLoader.java:1305)
>
> at
> org.springframework.core.io.support.PropertiesLoaderUtils.loadAllProperties(PropertiesLoaderUtils.java:103)
>
> at
> org.springframework.beans.factory.xml.PluggableSchemaResolver.getSchemaMappings(PluggableSchemaResolver.java:144)
>
> at
> org.springframework.beans.factory.xml.PluggableSchemaResolver.resolveEntity(PluggableSchemaResolver.java:110)
>
> at
> org.springframework.beans.factory.xml.DelegatingEntityResolver.resolveEntity(DelegatingEntityResolver.java:85)
>
> at
> org.springframework.beans.factory.xml.ResourceEntityResolver.resolveEntity(ResourceEntityResolver.java:74)
>
> at
> com.sun.org.apache.xerces.internal.util.EntityResolverWrapper.resolveEntity(EntityResolverWrapper.java:107)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLEntityManager.resolveEntity(XMLEntityManager.java:1098)
>
> at
> com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.resolveDocument(XMLSchemaLoader.java:599)
>
> at
> com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.findSchemaGrammar(XMLSchemaValidator.java:2438)
>
> at
> com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1788)
>
> at
> com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:711)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:400)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:626)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3104)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:921)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:647)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
>
> at
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
>
> at
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
>
> at
> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
>
> at
> com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:232)
>
> at
> com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284)
>
> at
> org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:75)
>
> at
> org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:388)
>
> ... 21 more Anyone have any ideas on where our problem might be? If
> you need
> more information, please specify and I will fill in what I can. Best
> regards
> Samuel
>
> --
>
> [Message sent by forum member 'SamuelSmith']
>
> View Post: http://forums.java.net/node/895405
>
>