Installation on Debian

[rob_canoe]

I have installed JBoss onto an Linux machine running Debian. JBoss fails to start with the following mesages in the stdout

jboss@exeters01:/export/opt/JBoss/bin$ ./run.sh
================================================================================

JBoss Bootstrap Environment

JBOSS_HOME: /export/opt/JBoss

JAVA: /export/opt/jdk/bin/java

JAVA_OPTS: -server -Dprogram.name=run.sh

CLASSPATH: /export/opt/JBoss/bin/run.jar:/export/opt/jdk/lib/tools.jar

================================================================================

java.lang.NoClassDefFoundError: javax/management/MalformedObjectNameException
at org.jboss.system.server.ServerImpl.(ServerImpl.java:51)
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:296)
at java.lang.Class.newInstance(Class.java:249)
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)



JVM version 1.4.0

I have got this to run on other Linux boxes without any problem. This just appears to be a blocker for me on Debian. Any suggestions??

Thanks

[juhalindfors]

well for some reason it fails to find the jboss-jmx.jar from the lib/ directory of JBoss. From JBoss side this is just creating an URL object pointing to that location...

[rob_canoe]

Yep - I found that too. jboss-jmx.jar is all present and correct.

I found the cause of this problem, but not the reason. I had got jbossall-client.jar in the ${JAVA_HOME}/jre/lib/ext directory. Once I had removed this file, all worked just fine. Too tired to work out exactly why this was happening, but I guess that the JBoss Classloader had got confused somehow.

[juhalindfors]

Jars in lib/ext will get added to the JVM system classloader. This will mess up the classloading mechanism in JBoss server.

[rob_canoe]

OK, Thanks for that. I suppose the implication of that is that I should keep the ${JAVA_HOME}/jre/lib/ext directory fairly empty.

[juhalindfors]

yep