JBoss server start error

I have following configuration
JBoss 3.2.1 and Java 1.5
When i am starting the Jboss server by running the run.sh from the bin directory. My server is not straing due to the following error.Can any body know the couse please tell me.

15:04:45,548 INFO  [Server] Root Deployment Filename: jboss-service.xml
15:04:45,548 INFO  [Server] Starting General Purpose Architecture (GPA)...
Failed to boot JBoss:
javax.management.InstanceNotFoundException: JMImplementation:service=LoaderRepos
itory,name=Default
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(Defaul
tMBeanServerInterceptor.java:1010)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultM
BeanServerInterceptor.java:804)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:784
)
        at org.jboss.system.server.ServerImpl.initBootLibraries(ServerImpl.java:
499)
        at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:335)
        at org.jboss.system.server.ServerImpl.start(ServerImpl.java:291)
        at org.jboss.Main.boot(Main.java:150)
        at org.jboss.Main$1.run(Main.java:395)
        at java.lang.Thread.run(Thread.java:595)
Press any key to continue . . .