Hi,
When i see the thread dump i could see a thread dead lock with other thread.
Please find below the thread dump message and kindly advice how to avoid it.
*Found one Java-level deadlock:
=============================
"RMI TCP Connection(3)-10.128.32.128":
waiting to lock monitor 0x000000000fcb9800 (object 0x00000007800b4990, a
sun.misc.Launcher$AppClassLoader),
which is held by "Impact Admin Server"
"Impact Admin Server":
waiting to lock monitor 0x000000000fcb9608 (object 0x00000007800b1248, a
sun.net.www.protocol.file.Handler),
which is held by "Apache Tomcat"
"Apache Tomcat":
waiting to lock monitor 0x000000000fcb9800 (object 0x00000007800b4990, a
sun.misc.Launcher$AppClassLoader),
which is held by "Impact Admin Server"
Java stack information for the threads listed above:
===================================================
"RMI TCP Connection(3)-10.128.32.128":
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at
com.proactivenet.server.PlatformFactoryImpl.getPlatform(PlatformFactoryImpl.java:425)
- locked <0x00000007800a0dc8> (a
com.proactivenet.server.PlatformFactoryImpl)
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:597)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
at sun.rmi.transport.Transport$1.run(Transport.java:159)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
at
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
"Impact Admin Server":
at java.net.URLStreamHandler.getHostAddress(URLStreamHandler.java:412)
- waiting to lock <0x00000007800b1248> (a
sun.net.www.protocol.file.Handler)
at java.net.URLStreamHandler.hostsEqual(URLStreamHandler.java:439)
at sun.net.www.protocol.file.Handler.hostsEqual(Handler.java:135)
at java.net.URLStreamHandler.sameFile(URLStreamHandler.java:396)
at java.net.URLStreamHandler.equals(URLStreamHandler.java:316)
at java.net.URL.equals(URL.java:842)
at java.security.CodeSource.equals(CodeSource.java:135)
at java.util.HashMap.get(HashMap.java:305)
at
java.security.SecureClassLoader.getProtectionDomain(SecureClassLoader.java:233)
- locked <0x00000007800b9ed8> (a java.util.HashMap)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
- locked <0x00000007800b4990> (a sun.misc.Launcher$AppClassLoader)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
- locked <0x00000007800b4990> (a sun.misc.Launcher$AppClassLoader)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at
org.aspectj.weaver.patterns.PatternParser.maybeParseAnnotationPattern(PatternParser.java:747)
at
org.aspectj.weaver.patterns.PatternParser.parseMethodOrConstructorSignaturePattern(PatternParser.java:1266)
at
org.aspectj.weaver.patterns.PatternParser.parseKindedPointcut(PatternParser.java:602)
at
org.aspectj.weaver.patterns.PatternParser.parseSinglePointcut(PatternParser.java:316)
at
org.aspectj.weaver.patterns.PatternParser.parseAtomicPointcut(PatternParser.java:294)
at
org.aspectj.weaver.patterns.PatternParser.parsePointcut(PatternParser.java:255)
at
org.aspectj.weaver.tools.PointcutParser.resolvePointcutExpression(PointcutParser.java:329)
at
org.aspectj.weaver.tools.PointcutParser.parsePointcutExpression(PointcutParser.java:310)
at
org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:206)
at
org.springframework.aop.aspectj.AspectJExpressionPointcut.checkReadyToMatch(AspectJExpressionPointcut.java:193)
at
org.springframework.aop.aspectj.AspectJExpressionPointcut.getMethodMatcher(AspectJExpressionPointcut.java:179)
at
org.springframework.aop.aspectj.AbstractAspectJAdvice.buildSafePointcut(AbstractAspectJAdvice.java:189)
at
org.springframework.aop.aspectj.AspectJPointcutAdvisor.<init>(AspectJPointcutAdvisor.java:51)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:100)
at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
at
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:248)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:925)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:835)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
- locked <0x00000007d73def28> (a java.util.concurrent.ConcurrentHashMap)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at
org.springframework.aop.framework.autoproxy.BeanFactoryAdvisorRetrievalHelper.findAdvisorBeans(BeanFactoryAdvisorRetrievalHelper.java:87)
at
org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findCandidateAdvisors(AbstractAdvisorAutoProxyCreator.java:98)
at
org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.findCandidateAdvisors(AnnotationAwareAspectJAutoProxyCreator.java:83)
at
org.springframework.aop.aspectj.autoproxy.AspectJAwareAdvisorAutoProxyCreator.shouldSkip(AspectJAwareAdvisorAutoProxyCreator.java:105)
at
org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessBeforeInstantiation(AbstractAutoProxyCreator.java:281)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:791)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:762)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:399)
at java.security.AccessController.doPrivileged(Native Method)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
- locked <0x00000007d73def28> (a java.util.concurrent.ConcurrentHashMap)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
- locked <0x00000007d73e2440> (a java.util.concurrent.ConcurrentHashMap)
at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
- locked <0x00000007d73ddfb0> (a java.lang.Object)
at
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at
org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:100)
at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
at
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:248)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:925)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:835)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
- locked <0x00000007d66c84f8> (a java.util.concurrent.ConcurrentHashMap)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
- locked <0x00000007d66edb88> (a java.util.concurrent.ConcurrentHashMap)
at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
- locked <0x00000007d65782f8> (a java.lang.Object)
at
org.springframework.context.access.ContextSingletonBeanFactoryLocator.initializeDefinition(ContextSingletonBeanFactoryLocator.java:141)
at
org.springframework.beans.factory.access.SingletonBeanFactoryLocator.useBeanFactory(SingletonBeanFactoryLocator.java:384)
- locked <0x00000007d622c3e8> (a java.util.HashMap)
at
com.bmc.sas.ngp.service.NGPServiceBeanContext.init(NGPServiceBeanContext.java:38)
at
com.bmc.sas.ngp.service.NGPServiceBeanContext.<init>(NGPServiceBeanContext.java:33)
at
com.bmc.sas.ngp.service.NGPServiceBeanContext.getInstance(NGPServiceBeanContext.java:23)
- locked <0x000000077207a8e0> (a java.lang.Class for
com.bmc.sas.ngp.service.NGPServiceBeanContext)
at
com.bmc.sms.ixscomm.authorization.GroupRoleHandler.init(GroupRoleHandler.java:71)
at
com.bmc.sms.ixscomm.authorization.AuthorizationMgr.init(AuthorizationMgr.java:27)
at com.bmc.sms.ixscomm.jmx.IXSComm.startService(IXSComm.java:259)
at com.proactivenet.server.ngpias.IAS$1.run(IAS.java:43)
at java.lang.Thread.run(Thread.java:619)
"Apache Tomcat":
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:293)
- waiting to lock <0x00000007800b4990> (a
sun.misc.Launcher$AppClassLoader)
at java.lang.ClassLoader.loadClass(ClassLoader.java:296)
- locked <0x00000007800a0ff0> (a
com.proactivenet.reports.util.ReportClassLoader)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.net.URL.getURLStreamHandler(URL.java:1144)
at java.net.URL.<init>(URL.java:393)
at java.net.URL.<init>(URL.java:283)
at java.net.URL.<init>(URL.java:306)
at sun.net.www.protocol.file.Handler.openConnection(Handler.java:91)
- locked <0x00000007800b1248> (a sun.net.www.protocol.file.Handler)
at sun.net.www.protocol.file.Handler.openConnection(Handler.java:55)
- locked <0x00000007800b1248> (a sun.net.www.protocol.file.Handler)
at java.net.URL.openConnection(URL.java:945)
at
sun.net.www.protocol.jar.JarURLConnection.<init>(JarURLConnection.java:66)
at sun.net.www.protocol.jar.Handler.openConnection(Handler.java:24)
at java.net.URL.openConnection(URL.java:945)
at
org.apache.catalina.core.JreMemoryLeakPreventionListener.lifecycleEvent(JreMemoryLeakPreventionListener.java:145)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.core.StandardServer.initialize(StandardServer.java:770)
at org.apache.catalina.startup.Catalina.load(Catalina.java:524)
at org.apache.catalina.startup.Catalina.load(Catalina.java:548)
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:597)
at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:261)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
at com.proactivenet.server.StartTomcat.run(StartTomcat.java:33)
Found 1 deadlock.
*Thanks
Jany
On Sun, Jan 16, 2011 at 11:08 PM, Caldarale, Charles R <
[email protected]> wrote:
> > From: Jany Jose [mailto:[email protected]]
> > Subject: Tomcat 6.0.26 startup issue
>
> > In our application we are starting tomcat as a thread by calling the
> > bootstrap class.
> > Please find the code used: *String[] mArgs = {"start"};
> > Bootstrap.main(mArgs);
>
> And a thread dump shows what?
>
> - Chuck
>
>
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