JSF-JPA error in netbeans

hi
IDE: Netbeans7.1
Server:Weblogic 10.0
JSF:2.1
JPA:toplink essential JPA 1.0
When i`m inserting JPA in my JSF project following error Shown, Any one have Idea abt it?
init:
deps-module-jar:
deps-ear-jar:
deps-jar:
library-inclusion-in-archive:
library-inclusion-in-manifest:
compile:
compile-jsps:
C:\Users\IS678\Documents\NetBeansProjects\GApp\nbproject\build-impl.xml:730:
Deployment error:
null
See the server log for details.
     at org.netbeans.modules.j2ee.deployment.devmodules.api.Deployment.deploy(Deployment.java:232)
     at org.netbeans.modules.j2ee.ant.Deploy.execute(Deploy.java:106)
     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
     at sun.reflect.GeneratedMethodAccessor117.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
     at org.apache.tools.ant.Task.perform(Task.java:348)
     at org.apache.tools.ant.Target.execute(Target.java:390)
     at org.apache.tools.ant.Target.performTasks(Target.java:411)
     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
     at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
     at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
     at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
     at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:284)
     at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:539)
     at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:153)
Caused by: java.lang.IllegalThreadStateException
     at java.lang.ThreadGroup.addUnstarted(ThreadGroup.java:843)
     at java.lang.Thread.init(Thread.java:348)
     at java.lang.Thread.<init>(Thread.java:608)
     at java.util.concurrent.Executors$DefaultThreadFactory.newThread(Executors.java:542)
     at java.util.concurrent.ThreadPoolExecutor.addThread(ThreadPoolExecutor.java:672)
     at java.util.concurrent.ThreadPoolExecutor.addIfUnderMaximumPoolSize(ThreadPoolExecutor.java:721)
     at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:657)
     at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:78)
     at org.netbeans.modules.j2ee.weblogic9.optional.WLStartServer.startDeploymentManager(WLStartServer.java:195)
     at org.netbeans.modules.j2ee.deployment.impl.ServerInstance._start(ServerInstance.java:1454)
     at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.startTarget(ServerInstance.java:1405)
     at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.startTarget(ServerInstance.java:1210)
     at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.start(ServerInstance.java:1087)
     at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.start(ServerInstance.java:1248)
     at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.getTargetMap(ServerInstance.java:548)
     at org.netbeans.modules.j2ee.deployment.impl.ServerInstance.getTargets(ServerInstance.java:516)
     at org.netbeans.modules.j2ee.deployment.impl.DeploymentHelper.deployJdbcDrivers(DeploymentHelper.java:93)
     at org.netbeans.modules.j2ee.deployment.devmodules.api.Deployment.deploy(Deployment.java:180)
     ... 16 more
BUILD FAILED (total time: 10 seconds)

Are you using MS's XP OS?
I had this exact same problem with XP home edition when I had it using FAT instead of NTFS. I converted to NTFS and all has been well ever since.

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                at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
                at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
                at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
                at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
                at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
                at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
                at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
                at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
                at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
                at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
                at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
                at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
                at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
                at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
                at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
                at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
                at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
                at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
                at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
                at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
                at java.lang.Thread.run(Thread.java:619)
Caused by: java.sql.SQLRecoverableException: Closed Connection
                at oracle.jdbc.driver.PhysicalConnection.getMetaData(PhysicalConnection.java:4508)
                at com.sun.gjc.spi.base.ConnectionHolder.getMetaData(ConnectionHolder.java:345)
                at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:589)
                ... 42 more
SEVERE: Exception while invoking class org.glassfish.persistence.jpa.JPADeployer prepare method
SEVERE: Exception while preparing the app
SEVERE: Exception [EclipseLink-4019] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException
Exception Description: Error while obtaining information about the database. Refer to the nested exception for more details.
javax.persistence.PersistenceException: Exception [EclipseLink-4019] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException
Exception Description: Error while obtaining information about the database. Refer to the nested exception for more details.
                at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:517)
                at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getDatabaseSession(EntityManagerFactoryDelegate.java:188)
                at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:277)
                at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:294)
                at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:272)
                at org.glassfish.persistence.jpa.PersistenceUnitLoader.loadPU(PersistenceUnitLoader.java:211)
                at org.glassfish.persistence.jpa.PersistenceUnitLoader.<init>(PersistenceUnitLoader.java:120)
                at org.glassfish.persistence.jpa.JPADeployer$1.visitPUD(JPADeployer.java:224)
                at org.glassfish.persistence.jpa.JPADeployer$PersistenceUnitDescriptorIterator.iteratePUDs(JPADeployer.java:495)
                at org.glassfish.persistence.jpa.JPADeployer.createEMFs(JPADeployer.java:233)
                at org.glassfish.persistence.jpa.JPADeployer.prepare(JPADeployer.java:168)
                at com.sun.enterprise.v3.server.ApplicationLifecycle.prepareModule(ApplicationLifecycle.java:871)
                at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:410)
                at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
                at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
                at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
                at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
                at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
                at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
                at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
                at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
                at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
                at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
                at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
                at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
                at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
                at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
                at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
                at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
                at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
                at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
                at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
                at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
                at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
                at java.lang.Thread.run(Thread.java:619)
Caused by: Exception [EclipseLink-4019] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException
Exception Description: Error while obtaining information about the database. Refer to the nested exception for more details.
                at org.eclipse.persistence.exceptions.DatabaseException.errorRetrieveDbMetadataThroughJDBCConnection(DatabaseException.java:361)
                at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:602)
                at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:206)
                at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:488)
                ... 40 more
Caused by: java.sql.SQLRecoverableException: Closed Connection
                at oracle.jdbc.driver.PhysicalConnection.getMetaData(PhysicalConnection.java:4508)
                at com.sun.gjc.spi.base.ConnectionHolder.getMetaData(ConnectionHolder.java:345)
                at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:589)
                ... 42 more
SEVERE: Exception while preparing the app : Exception [EclipseLink-4019] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException
Exception Description: Error while obtaining information about the database. Refer to the nested exception for more details.
Local Exception Stack:
Exception [EclipseLink-4019] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException
Exception Description: Error while obtaining information about the database. Refer to the nested exception for more details.
                at org.eclipse.persistence.exceptions.DatabaseException.errorRetrieveDbMetadataThroughJDBCConnection(DatabaseException.java:361)
                at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:602)
                at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:206)
                at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:488)
                at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.getDatabaseSession(EntityManagerFactoryDelegate.java:188)
                at org.eclipse.persistence.internal.jpa.EntityManagerFactoryDelegate.createEntityManagerImpl(EntityManagerFactoryDelegate.java:277)
                at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:294)
                at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:272)
                at org.glassfish.persistence.jpa.PersistenceUnitLoader.loadPU(PersistenceUnitLoader.java:211)
                at org.glassfish.persistence.jpa.PersistenceUnitLoader.<init>(PersistenceUnitLoader.java:120)
                at org.glassfish.persistence.jpa.JPADeployer$1.visitPUD(JPADeployer.java:224)
                at org.glassfish.persistence.jpa.JPADeployer$PersistenceUnitDescriptorIterator.iteratePUDs(JPADeployer.java:495)
                at org.glassfish.persistence.jpa.JPADeployer.createEMFs(JPADeployer.java:233)
                at org.glassfish.persistence.jpa.JPADeployer.prepare(JPADeployer.java:168)
                at com.sun.enterprise.v3.server.ApplicationLifecycle.prepareModule(ApplicationLifecycle.java:871)
                at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:410)
                at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
                at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
                at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
                at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
                at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
                at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
                at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
                at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
                at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
                at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
                at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
                at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
                at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
                at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
                at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
                at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
                at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
                at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
                at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
                at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
                at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
                at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
                at java.lang.Thread.run(Thread.java:619)
Caused by: java.sql.SQLRecoverableException: Closed Connection
                at oracle.jdbc.driver.PhysicalConnection.getMetaData(PhysicalConnection.java:4508)
                at com.sun.gjc.spi.base.ConnectionHolder.getMetaData(ConnectionHolder.java:345)
                at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:589)
                ... 42 morethanks,
-Hoang Long

r035198x wrote:
Yep, the appserver got hold of a usable connection but the connection was closed before the appserver had finished/committed with it. It could be that the connection was closed by the database or some firewall timeout setting.
A good start is to investigate options of configuring your appserver's connection eviction policies including forcing a validation SQL to be executed when a connection is acquired. Make sure that such a query doesn't impact on performance and have some performance and integration testing before rolling out.i found that if i close the computer which causes this issue, hence other dev computers can deploy normally.
"deploy" here i mean deploy to a running instance on each dev's machine.
From this, i would guess the common database server itself rejects connection from clients.
I will try to investigate more if i am missing something.
And here i found a link that possibly a first good attempt:
[http://www.eclipse.org/forums/index.php/m/505809/]
EclipseLink automatically recovers from communication failures, but there is little we can do to diagnose the failure. We basically execute a query and have to wait for the JDBC driver, or DataSource's response, if it hangs for 10minutes, then we are waiting. You could set the JDBC timeout hint on your query, but whether the JDBC driver honors this is up to the driver. You should see the SQLException in your logs, provided your log level is warning or lower.
If you cannot fix your firewall, they you could change your connection pool settings to use a min number of connections of 0, so there will never be idle connections. But then you will be reconnecting a lot.
You could also use a third party connection pool or DataSource that supports a timeout setting on the pooled connections, or spawn a thread in your application the clears the connection pool every 30minutes.regards,
-HL

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