If it sheds any light, I get the following error when running the test ant script (section 5.3 of http://labs.jboss.com/file-access/default/members/jbossmessaging/freezone...): /u/etolson/downloads/jboss-messaging-1.0.0.GA/examples/queue> ant Buildfile: build.xml identify: [echo] Running the queue example [echo] The queue: testQueue sanity-check: init: [mkdir] Created dir: /tmp_mnt/home/nfs1/u1/etolson/downloads/jboss-messaging-1.0.0.GA/examples/queue/output [mkdir] Created dir: /tmp_mnt/home/nfs1/u1/etolson/downloads/jboss-messaging-1.0.0.GA/examples/common/output compile: [javac] Compiling 2 source files to /tmp_mnt/home/nfs1/u1/etolson/downloads/jboss-messaging-1.0.0.GA/examples/common/output [javac] /tmp_mnt/home/nfs1/u1/etolson/downloads/jboss-messaging-1.0.0.GA/examples/common/src/org/jboss/example/jms/common/ExampleSupport.java:21: cannot access java.lang.Object [javac] bad class file: /usr/local/jdk1.5.0_04-i586/jre/lib/rt.jar(java/lang/Object.class) [javac] class file has wrong version 49.0, should be 48.0 [javac] Please remove or make sure it appears in the correct subdirectory of the classpath. [javac] public static final String DEFAULT_QUEUE_NAME = "testQueue"; [javac] ^ [javac] 1 error BUILD FAILED /tmp_mnt/home/nfs1/u1/etolson/downloads/jboss-messaging-1.0.0.GA/examples/queue/build.xml:62: Compile failed; see the compiler error output for details. Total time: 5 seconds View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972929#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...