Hi All,
I am using Hibernate 3.0 with Derby 10.4 . My Db getting crashed randomly at runtime or while restarting my application .... I am getting the session in teh following way and after each operation i am closing it.

session = getSessionFactory(configFile).openSession();

//HQL

session.close().
the excepyion i am getting is as follows. Its happening not in a specific HQL or SQl but in random. I am not sure that whetehr i am using the hibernate properties properly. I put this issue in Derby forums but they couldnt find out it yet. It ll be of great help if anyone can help me in this regard. pls revert back to me if you need mor informations regarding my application


java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at org.apache.derby.impl.store.raw.data.AllocPage.ReadContainerInfo(Unknown Source)
at org.apache.derby.impl.store.raw.data.FileContainer.readHeader(Unknown Source)
at org.apache.derby.impl.store.raw.data.RAFContainer.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.derby.impl.store.raw.data.RAFContainer.openContainer(Unknown Source)
at org.apache.derby.impl.store.raw.data.RAFContainer4.openContainer(Unknown Source)
at org.apache.derby.impl.store.raw.data.FileContainer.setIdent(Unknown Source)
at org.apache.derby.impl.store.raw.data.RAFContainer.setIdentity(Unknown Source)
at org.apache.derby.impl.services.cache.ConcurrentCache.find(Unknown Source)
at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(Unknown Source)
at org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(Unknown Source)
at org.apache.derby.impl.store.raw.xact.Xact.openContainer(Unknown Source)
at org.apache.derby.impl.store.access.heap.HeapConglomerateFactory.readConglomerate(Unknown Source)
at org.apache.derby.impl.store.access.RAMAccessManager.conglomCacheFind(Unknown Source)
at org.apache.derby.impl.store.access.RAMTransaction.findExistingConglomerate(Unknown Source)
at org.apache.derby.impl.store.access.RAMTransaction.openStoreCost(Unknown Source)
at org.apache.derby.impl.sql.compile.CompilerContextImpl.getStoreCostController(Unknown Source)
at org.apache.derby.impl.sql.compile.FromBaseTable.getStoreCostController(Unknown Source)
at org.apache.derby.impl.sql.compile.FromBaseTable.estimateCost(Unknown Source)
at org.apache.derby.impl.sql.compile.OptimizerImpl.estimateTotalCost(Unknown Source)
at org.apache.derby.impl.sql.compile.OptimizerImpl.costBasedCostOptimizable(Unknown Source)
at org.apache.derby.impl.sql.compile.OptimizerImpl.costOptimizable(Unknown Source)
at org.apache.derby.impl.sql.compile.FromBaseTable.optimizeIt(Unknown Source)
at org.apache.derby.impl.sql.compile.ProjectRestrictNode.optimizeIt(Unknown Source)
at org.apache.derby.impl.sql.compile.OptimizerImpl.costPermutation(Unknown Source)
at org.apache.derby.impl.sql.compile.SelectNode.optimize(Unknown Source)
at org.apache.derby.impl.sql.compile.DMLStatementNode.optimizeStatement(Unknown Source)
at org.apache.derby.impl.sql.compile.CursorNode.optimizeStatement(Unknown Source)
at org.apache.derby.impl.sql.GenericStatement.prepMinion(Unknown Source)
at org.apache.derby.impl.sql.GenericStatement.prepare(Unknown Source)
at org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.prepareInternalStatement(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement.<init>(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement20.<init>(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement30.<init>(Unknown Source)
at org.apache.derby.jdbc.Driver30.newEmbedPreparedStatement(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.prepareStatement(Unknown Source)
at com.mchange.v2.c3p0.impl.NewProxyConnection.prepareStatement(NewProxyConnection.java:213)
at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:442)
at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:368)
at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:105)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1561)
at org.hibernate.loader.Loader.doQuery(Loader.java:661)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:223)
at org.hibernate.loader.Loader.doList(Loader.java:2147)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2026)
at org.hibernate.loader.Loader.list(Loader.java:2021)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:369)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:298)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:137)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1014)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:750)
at ae.sphere.arena.networkManager.db.dao.NetworkmanagerGlobalPreferenceDAO.getNetworkmanagerGlobalPreferenceKey(NetworkmanagerGlobalPreferenceDAO.java:54)
at ae.sphere.arena.networkManager.db.dao.NetworkmanagerGlobalPreferenceDAO.getNetworkmanagerPreference(NetworkmanagerGlobalPreferenceDAO.java:20)
at ae.sphere.arena.networkManager.db.dao.NetworkmanagerPreferenceKeyDAO.getNetworkmanagerPreference(NetworkmanagerPreferenceKeyDAO.java:36)
at ae.sphere.arena.networkManager.db.dao.NetworkmanagerPreferenceKeyDAO.getNetworkmanagerPreference(NetworkmanagerPreferenceKeyDAO.java:22)
at ae.sphere.arena.configurationManager.server.manager.SchedulerFacad.load(SchedulerFacad.java:90)
at ae.sphere.arena.configurationManager.server.manager.SchedulerFacad.load(SchedulerFacad.java:83)
at ae.sphere.arena.configurationManager.server.ConfServerPlugin.start(ConfServerPlugin.java:39)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:995)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:989)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:970)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:317)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:256)
at org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.preFindLocalClass(EclipseLazyStarter.java:86)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:409)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:188)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:339)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:391)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:352)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:276)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1245)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:147)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:759)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
at ae.sphere.arena.server.eventManager.EventManagerPlugin.computeServerManagers(EventManagerPlugin.java:124)
at ae.sphere.arena.server.eventManager.EventManagerPlugin.getServerManagers(EventManagerPlugin.java:242)
at ae.sphere.arena.server.eventManager.EventServerStartup.start(EventServerStartup.java:10)
at ae.sphere.arena.server.ArenaServerPlugin.startArenaStartupMembers(ArenaServerPlugin.java:201)
at ae.sphere.arena.server.ArenaServerPlugin.start(ArenaServerPlugin.java:185)
at ae.sphere.arena.server.ArenaServerApplication.run(ArenaServerApplication.java:29)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:17