Eranga Samararathna [https://community.jboss.org/people/erangac] created the discussion "TreeCache error after Hibernate sessionFacotry close" To view the discussion, visit: https://community.jboss.org/message/724584#724584 -------------------------------------------------------------- I am using a Hibernate 3.1.13 with jboss-cache 3.2.5 I'm running my application with second level caching enabled and in middle of the application (based on user operation ) I am closing the existing session factory (sessionFactory.close();) and create a new one. Up to this moment my second level cache work fine and after closing and creating new session factory I am getting following error from the Treecache. Error ================================================ Caused by: org.jboss.cache.CacheException: java.lang.reflect.InvocationTargetException        at org.jboss.cache.util.reflect.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:148)        at org.jboss.cache.factories.ComponentRegistry$PrioritizedMethod.invoke(ComponentRegistry.java:1012)        at org.jboss.cache.factories.ComponentRegistry.internalStart(ComponentRegistry.java:778)        at org.jboss.cache.factories.ComponentRegistry.start(ComponentRegistry.java:632)        at org.jboss.cache.invocation.CacheInvocationDelegate.start(CacheInvocationDelegate.java:345)        at org.hibernate.cache.jbc2.builder.SharedCacheInstanceManager.start(SharedCacheInstanceManager.java:155)        at org.hibernate.cache.jbc2.JBossCacheRegionFactory.start(JBossCacheRegionFactory.java:106)        at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:192)        at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1304)        at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:814)        at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:732)        at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)        at com.valista.rse.server.SessionFactoryHolder.refreshSessionFactory(SessionFactoryHolder.java:102)        ... 32 more     Caused by: java.lang.reflect.InvocationTargetException        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.jboss.cache.util.reflect.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:144)        ... 44 more     Caused by: org.jboss.cache.CacheException: Unable to fetch state on startup        at org.jboss.cache.RPCManagerImpl.start(RPCManagerImpl.java:385)        ... 49 more     Caused by: org.jboss.cache.CacheException: Cache instance at 127.0.0.1:47082 cannot integrate state since state provider could not provide state due to null        at org.jboss.cache.statetransfer.DefaultStateTransferManager.setState(DefaultStateTransferManager.java:169)        at org.jboss.cache.remoting.jgroups.ChannelMessageListener.setState(ChannelMessageListener.java:191)        at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.handleUpEvent(MessageDispatcher.java:665)        at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:765)        at org.jgroups.JChannel.up(JChannel.java:1183)        at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:444)        at org.jgroups.protocols.pbcast.STATE_TRANSFER.handleStateRsp(STATE_TRANSFER.java:421)        at org.jgroups.protocols.pbcast.STATE_TRANSFER.up(STATE_TRANSFER.java:120)        at org.jgroups.protocols.pbcast.GMS.up(GMS.java:787)        at org.jgroups.protocols.FRAG.unfragment(FRAG.java:290)        at org.jgroups.protocols.FRAG.up(FRAG.java:150)        at org.jgroups.protocols.UNICAST.handleDataReceived(UNICAST.java:616)        at org.jgroups.protocols.UNICAST.up(UNICAST.java:282)        at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:233)        at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:735)        at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:167)        at org.jgroups.protocols.FD.up(FD.java:284)        at org.jgroups.protocols.MERGE2.up(MERGE2.java:144)        at org.jgroups.protocols.Discovery.up(Discovery.java:263)        at org.jgroups.protocols.TP.passMessageUp(TP.java:1275)        at org.jgroups.protocols.TP.access$100(TP.java:49)        at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1818)        at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1797)        ... 3 more My treecache configuration file ================================ <?xml version="1.0" encoding="UTF-8"?>     <!-- ===================================================================== -->     <!--                                                                       -->     <!--  Sample TreeCache Service Configuration                               -->     <!--                                                                       -->     <!-- ===================================================================== -->     <server>         <classpath codebase="../lib" archives="jbosscache-core.jar, jgroups.jar"/>         <!-- ==================================================================== -->         <!-- Defines TreeCache configuration                                      -->         <!-- ==================================================================== -->         <mbean code="org.jboss.cache.TreeCache"             name="jboss.cache:service=TreeCache">             <depends>jboss:service=Naming</depends>             <!-- <depends>jboss:service=TransactionManager</depends>                 TransactionManager configuration not required for Hibernate!             -->             <!--                 Node isolation level : SERIALIZABLE                                      REPEATABLE_READ (default)                                      READ_COMMITTED                                      READ_UNCOMMITTED                                      NONE             -->             <attribute name="IsolationLevel">READ_COMMITTED</attribute>             <!--                  Valid modes are LOCAL                                  REPL_ASYNC                                  REPL_SYNC             -->             <attribute name="CacheMode">REPL_SYNC</attribute>             <!-- Name of cluster. Needs to be the same for all clusters, in order                  to find each other             -->             <attribute name="ClusterName">TreeCache-Cluster</attribute>             <!-- JGroups protocol stack properties. Can also be a URL,                  e.g. file:/home/bela/default.xml                <attribute name="ClusterProperties"></attribute>             -->           <attribute name="ClusterConfig">                 <config>                      UDP: if you have a multihomed machine,                     set the bind_addr attribute to the appropriate NIC IP address                      UDP: On Windows machines, because of the media sense feature                      being broken with multicast (even after disabling media sense)                      set the loopback attribute to true                     <UDP mcast_addr="228.1.2.3" mcast_port="45566" bind_addr="127.0.0.1"                         ip_ttl="64" ip_mcast="true"                         mcast_send_buf_size="150000" mcast_recv_buf_size="80000"                         ucast_send_buf_size="150000" ucast_recv_buf_size="80000"                         loopback="false"/>                     <PING timeout="2000" num_initial_members="3"                         up_thread="false" down_thread="false"/>                     <MERGE2 min_interval="10000" max_interval="20000"/>                     <FD shun="true" up_thread="true" down_thread="true"/>                     <VERIFY_SUSPECT timeout="1500"                         up_thread="false" down_thread="false"/>                     <pbcast.NAKACK gc_lag="50" retransmit_timeout="600,1200,2400,4800"                         up_thread="false" down_thread="false"/>                     <pbcast.STABLE desired_avg_gossip="20000"                         up_thread="false" down_thread="false"/>                     <UNICAST timeout="600,1200,2400" window_size="100" min_threshold="10"                         down_thread="false"/>                     <FRAG frag_size="8192"                         down_thread="false" up_thread="false"/>                     <pbcast.GMS join_timeout="5000" join_retry_timeout="2000"                         shun="true" print_local_addr="false"/>                     <pbcast.STATE_TRANSFER up_thread="false" down_thread="false"/>                 </config>             </attribute>             <!--                  Max number of entries in the cache. If this is exceeded, the                  eviction policy will kick some entries out in order to make                  more room             -->             <attribute name="MaxCapacity">20000</attribute>             <!--                 The max amount of time (in milliseconds) we wait until the                 initial state (ie. the contents of the cache) are retrieved from                 existing members in a clustered environment             -->             <attribute name="InitialStateRetrievalTimeout">20000</attribute>             <!--                 Number of milliseconds to wait until all responses for a                 synchronous call have been received.             -->             <attribute name="SyncReplTimeout">10000</attribute>             <!-- Max number of milliseconds to wait for a lock acquisition -->             <attribute name="LockAcquisitionTimeout">15000</attribute>             <!-- Max number of milliseconds we hold a lock (not currently             implemented) -->             <attribute name="LockLeaseTimeout">60000</attribute>             <!-- Name of the eviction policy class. Not supported now. -->             <attribute name="EvictionPolicyClass"></attribute>         </mbean>     </server> My Hibernate configuration file ================================= # hibernate properties (general settings)     # Note: Define C3P0 settings in c3p0.properties, NOT in this file.     # Debugging     hibernate.show_sql=false     #hibernate.cglib.use_reflection_optimizer=false     # Database isolation 1=read uncommitted, 2=read committed, 4=repeatable read, 8=serializable     hibernate.connection.isolation = 2     #configurations for jboss-cache as second level cache     hibernate.cache.use_second_level_cache=true     hibernate.cache.region.factory_class=org.hibernate.cache.jbc2.SharedJBossCacheRegionFactory     hibernate.cache.region.jbc2.cfg.shared=treecache.xml     hibernate.cache.use_query_cache=false     # Filtered values based on db type     hibernate.connection.url=(a)db.url@     hibernate.connection.username=(a)db.users.owner.username@     hibernate.connection.password=(a)db.users.owner.password@     hibernate.database.startup.enabled=(a)db.startup.enabled@     db.type=(a)db.type@     hibernate.generate_statistics=true Appreciate you people help on this matter -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/724584#724584] Start a new discussion in JBoss Cache at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]