Startup Problem

[cyberghost]

I recently had my jboss server taken offline without a proper shutdown, and since then I have not been able to restart jboss. I am running JBoss 3.0.6 integrated with Tomcat 4.1.18 on Sun OS 8. I finally removed my jboss installation and reinstalled in the same location, but I am getting the same error:

java.lang.NoClassDefFoundError: javax/management/MalformedObjectNameException
at org.jboss.system.server.ServerImpl.(ServerImpl.java:52)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at java.lang.Class.newInstance0(Class.java:306)
at java.lang.Class.newInstance(Class.java:259)
at org.jboss.system.server.ServerLoader.createServer(ServerLoader.java:244)
at org.jboss.system.server.ServerLoader.load(ServerLoader.java:224)
at org.jboss.Main.boot(Main.java:140)
at org.jboss.Main$1.run(Main.java:381)
at java.lang.Thread.run(Thread.java:536)

I am using "./run.sh -c all" to start jboss. I am not sure if jboss stores data or logs outside the jboss home directory since it gives the same error with a fresh installation.

[florin_ganea]

we have exactly the same problem, with JBoss 3.0.6 (build with Jetty) on Mandrake 9.0.
waiting an ideea ......

[florin_ganea]

somehow, finally it works. so:
i removed from java_home "ext" directory 2 jars (jbossall-client and log4j) which previously i have put, i made "build clean", "build" and now it works again. why? i really don't know.