Bugs item #870942, was opened at 2004-01-05 08:54
Message generated for change (Tracker Item Submitted) made by Item Submitter
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Category: JBossServer
Group: v3.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Steve Wolfangel (swolfangel)
Assigned to: Nobody/Anonymous (nobody)
Summary: Classloader problem with ear file
Initial Comment:
Hello,
I have an ear file that contains 2 stateless session
beans and all the 3rd party jars required by the beans.
The 3rd party jars contain older jdom classes than the
jdom jar included in the jboss lib dir. I have a unique
classloader setup (in the jboss-app.xml file) but I am
having problems with jdom. It is finding the jboss jdom
classes instead of the ones included in the ear.
when I change the jboss-app.xml file to contain the
following lines:
<jboss-app>
<loader-repository>
com.metamatrix:loader=MM.ear
<loader-repository-
config>java2ParentDelegation=false</loader-repository-
config>
</loader-repository>
</jboss-app>
I get a NoClassDefFoundError.
java.lang.NoClassDefFoundError: java/sql/SQLException
This class is in the rt.jar file in the jdk!
I was under the impression that setting
java2ParentDelegation to false meant that if the class
was not found using the local classloader then the
parent classloader would be called.
In a nutshell, when I have java2ParentDelegation set to
true, I get the jdom problem, when I have
java2ParentDelegation set to false I am unable to see
classes that are in the rt.jar file.
Here is the output when starting the server.
[Server] Starting JBoss (MX MicroKernel)...
[Server] Release ID: JBoss [WonderLand] 3.2.3 (build:
CVSTag=JBoss_3_2_3 date=200311301445)
[Server] Home Dir: D:\mm40\jb32\server\jboss
[Server] Home URL: file:/D:/mm40/jb32/server/jboss/
[Server] Library URL: file:/D:/mm40/jb32/server/jboss/lib/
[Server] Patch URL: null
[Server] Server Name: metamatrix
[Server] Server Home Dir: D:\mm40\jb32
\server\jboss\server\metamatrix
[Server] Server Home URL:
file:/D:/mm40/jb32/server/jboss/server/metamatrix/
[Server] Server Data Dir: D:\mm40\jb32
\server\jboss\server\metamatrix\data
[Server] Server Temp Dir: D:\mm40\jb32
\server\jboss\server\metamatrix\tmp
[Server] Server Config URL:
file:/D:/mm40/jb32/server/jboss/server/metamatrix/conf/
[Server] Server Library URL:
file:/D:/mm40/jb32/server/jboss/server/metamatrix/lib/
[Server] Root Deployment Filename: jboss-service.xml
[Server] Starting General Purpose Architecture (GPA)...
[ServerInfo] Java version: 1.4.2,Sun Microsystems Inc.
[ServerInfo] Java VM: Java HotSpot(TM) Client VM
1.4.2-b28,Sun Microsystems Inc.
[ServerInfo] OS-System: Windows XP 5.1,x86
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