I am JBoss TreeCache in Spring. When I run unit tests. Everything seems fine. But when I deploy the war file to tomcat, the following exception is thrown: 2006-09-27 15:33:00,321 ERROR [main] org.jboss.cache.transaction.DummyTransactionManager.getInstance (DummyTransactionManager.java:37) binding of DummyTransactionManager failed javax.naming.NamingException: Context is read only at org.apache.naming.NamingContext.checkWritable(NamingContext.java:902) at org.apache.naming.NamingContext.bind(NamingContext.java:830) at org.apache.naming.NamingContext.bind(NamingContext.java:170) at org.apache.naming.NamingContext.bind(NamingContext.java:186) at org.apache.naming.SelectorContext.bind(SelectorContext.java:170) at javax.naming.InitialContext.bind(InitialContext.java:359) at org.jboss.cache.transaction.DummyTransactionManager.getInstance(DummyTransactionManager.java:33) at org.jboss.cache.GenericTransactionManagerLookup.getTransactionManager(GenericTransactionManagerLookup.java:76) at org.jboss.cache.TreeCache._createService(TreeCache.java:1314) at org.jboss.cache.TreeCache.createService(TreeCache.java:1300) My jboss cache configuration file is as follows (the cache runs in standalone mode), jboss:service=Naming <!-- --> jboss:service=TransactionManager <!----> <!-- Configure the TransactionManager --> org.jboss.cache.GenericTransactionManagerLookup <!-- --> <!-- Node locking scheme: OPTIMISTIC PESSIMISTIC (default) OPTIMISTIC --> <!-- Node locking level : SERIALIZABLE REPEATABLE_READ (default) READ_COMMITTED READ_UNCOMMITTED NONE --> REPEATABLE_READ <!-- Valid modes are LOCAL REPL_ASYNC REPL_SYNC INVALIDATION_ASYNC INVALIDATION_SYNC --> REPL_SYNC <!-- Name of cluster. Needs to be the same for all clusters, in order to find each other --> JTVCORE-Cluster <!-- JGroups protocol stack properties. Can also be a URL, e.g. file:/home/bela/default.xml --> <UDP mcast_send_buf_size="32000" mcast_port="45566" ucast_recv_buf_size="64000" mcast_addr="228.8.8.8" bind_addr="10.1.11.8" loopback="false" mcast_recv_buf_size="64000" max_bundle_size="60000" max_bundle_timeout="30" use_incoming_packet_handler="false" use_outgoing_packet_handler="false" ucast_send_buf_size="32000" ip_ttl="32" enable_bundling="false"/> <PING timeout="2000" num_initial_members="4"/> <MERGE2 max_interval="10000" min_interval="5000"/> <FD timeout="2000" max_tries="3" shun="true"/> <VERIFY_SUSPECT timeout="1500"/> <pbcast.NAKACK max_xmit_size="8192" use_mcast_xmit="false" gc_lag="50" retransmit_timeout="600,1200,2400,4800"/> <!-- - desired_avg_gossip: periodically sends STABLE messages around. 0 disables this - max_bytes: max number of bytes received from anyone until a STABLE message is sent. Use either this or desired_avg_gossip, but not both ! 0 disables it. - stability_delay: range (number of milliseconds) that we wait until sending a STABILITY message. This prevents STABILITY multicast storms. If max_bytes is used, this should be set to a low value (> 0 though !). --> <pbcast.STABLE stability_delay="1000" desired_avg_gossip="20000" max_bytes="0"/> <FRAG frag_size="8192" down_thread="false" up_thread="false"/> <VIEW_SYNC avg_send_interval="60000" down_thread="false" up_thread="false" /> <pbcast.GMS print_local_addr="true" join_timeout="3000" join_retry_timeout="2000" shun="true"/> <pbcast.STATE_TRANSFER down_thread="false" up_thread="false"/> <!-- Whether or not to fetch state on joining a cluster NOTE this used to be called FetchStateOnStartup and has been renamed to be more descriptive. --> <!-- --> true <!-- --> <!-- 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 --> 20000 <!-- Number of milliseconds to wait until all responses for a synchronous call have been received. --> 20000 <!-- Max number of milliseconds to wait for a lock acquisition --> 15000 <!-- Name of the eviction policy class. --> <!--attribute name="EvictionPolicyClass"></attribute--> <!-- org.jboss.cache.eviction.LRUPolicy --> <!-- Specific eviction policy configurations. This is LRU --> 5 <!-- Cache wide default /com/jtv/core--> 5000 0 2000 0 10000 0 <!-- Indicate whether to use region based marshalling or not. Set this to true if you are running under a scoped class loader, e.g., inside an application server. Default is "false". --> false <!-- New 1.3.x cache loader config block --> <!-- if passivation is true, only the first cache loader is used; the rest are ignored --> true / false<!--false--> <!-- we can now have multiple cache loaders, which get chained --> org.jboss.cache.loader.FileCacheLoader <!-- same as the old CacheLoaderConfig attribute --> location=/tmp <!-- whether the cache loader writes are asynchronous --> false <!-- only one cache loader in the chain may set fetchPersistentState to true. An exception is thrown if more than one cache loader sets this to true. --> true <!-- determines whether this cache loader ignores writes - defaults to false. --> false Any hints about what is wrong? Thanks in advance. 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