Thanks for your reply, but it's certainly an error message.<br />When starting up the jboss, the server.log ends with :<br /><br />2008-06-06 11:10:42,373 ERROR [STDERR] 6-jun-2008 11:10:42 com.adobe.idp.dsc.management.impl.ArchiveFileManagerImpl getLocalCacheRootDir<br />INFO: ArchiveFileManagerImpl:getLocalCacheRootDir():java.io.tmpdir is null<br />2008-06-06 11:10:43,186 INFO [net.sf.swarmcache.JavaGroupsCommunicator] Starting a JavaGroups Communicator...TCP(bind_addr=localhost;start_port=7777;loopback=true):TCPPING(initial_hosts=localhost[7777];port_range=5;timeout=3000;num_initial_members=5;up_thread=true;down_thread=true):MERGE2(min_interval=5000;max_interval=10000):FD_SOCK:VERIFY_SUSPECT(timeout=1500;down_thread=false;up_thread=false):pbcast.NAKACK(gc_lag=100;retransmit_timeout=600,1200,2400,4800;up_thread=true;down_thread=true):pbcast.STABLE(desired_avg_gossip=20000):FRAG(frag_size=8096;down_thread=false;up_thread=false):pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;shun=false;print_local_addr=true;up_thread=true;down_thread=true):pbcast.STATE_TRANSFER(up_thread=true;down_thread=true)<br />2008-06-06 11:10:43,249 INFO [STDOUT] <br />-------------------------------------------------------<br />GMS: address is 127.0.0.1:7777<br />-------------------------------------------------------<br />2008-06-06 11:10:43,249 ERROR [org.jgroups.stack.DownHandler] DownHandler (TCPPING) caught exception<br />java.lang.NoSuchMethodError: org.jgroups.protocols.PingHeader.<init>(ILjava/lang/Object;)V<br /> at org.jgroups.protocols.TCPPING.down(TCPPING.java:180)<br /> at org.jgroups.stack.DownHandler.run(Protocol.java:121)<br />2008-06-06 11:15:53,040 WARN [com.arjuna.ats.arjuna.logging.arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.BasicAction_58] - Abort of action id -53ec04f4:76d:4848fe50:9d invoked while multiple threads active within it.<br />2008-06-06 11:15:53,040 WARN [com.arjuna.ats.arjuna.logging.arjLoggerI18N] [com.arjuna.ats.arjuna.coordinator.CheckedAction_2] - CheckedAction::check - atomic action -53ec04f4:76d:4848fe50:9d aborting with 1 threads active!<br /><br />With this error, jboss hangs and it is not possible to reach the jboss welcome page or helloWorld application. After removing the adobe-livecycle-jboss.ear and adobe-livecycle-native-jboss-x86_win32.ear from the deploy directory, I stop and start the jboss again, and then the jboss welcome page and helloWorld application are available.<br /><br />Kind regards, <br />els