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=@db.url@

    hibernate.connection.username=@db.users.owner.username@

    hibernate.connection.password=@db.users.owner.password@

    hibernate.database.startup.enabled=@db.startup.enabled@

    db.type=@db.type@

    hibernate.generate_statistics=true

Appreciate you people help on this matter