Disable WAR classloader isolation

[altavatar]

Hello,

I have 2 WARs contained in an EAR. I get the following error when I access any page in one of the webapps (note: the project uses JBoss Seam 2.1):

[VFSScanner] Error handling item 'index.page.xml' java.lang.NullPointerException: Cannot find URL from classLoader for index.page.xml, loading from org.jboss.web.tomcat.service.WebCtxLoader$ENCLoader@1687250

I'd like to see if this can be resolved by having both WARs share the same ClassLoader. I have tried using adding the following WEB-INF/jboss-web.xml file to both WARs:

<jboss-web>
 <class-loading>
 <loader-repository>
 org.jboss:archive=shared
 </loader-repository>
 </class-loading>
</jboss-web>

But that hasnt helped. I've read that this configuration file may be ignored in AS5 as ClassLoading is delegated to Tomcat - is this correct? How can I configure JBoss AS 5 to use the same classloader for both WARs in my EAR?

Moreover, will this approach work? I imagine that it may cause filename collision or other issues?

Thanks very much.

[jaikiran]

[VFSScanner] Error handling item 'index.page.xml' java.lang.NullPointerException: Cannot find URL from classLoader for index.page.xml, loading from org.jboss.web.tomcat.service.WebCtxLoader$ENCLoader@
1687250

Which exact version of AS5 do you use? I haven't seen that error or the class reporting that error before (i don't have a system where i can check for that class).

How can I configure JBoss AS 5 to use the same classloader for both WARs in my EAR?

See this http://www.jboss.org/index.html?module=bb&op=viewtopic&t=153791#4224555

[altavatar]

"jaikiran" wrote:
Which exact version of AS5 do you use? I haven't seen that error or the class reporting that error before (i don't have a system where i can check for that class).

I've tried both AS 5.0.0 and AS 5.0.1

I tried to do as you suggested in the other thread - setting the following property to true:

%JBOSS_HOME%/server/< serverName>/deployers/jbossweb.deployer/META-INF/war-deployers-jboss-beans.xml

<property name="useJBossWebLoader">true</property>

Unfortunately, I'm still seeing similar errors:

WARN [VFSScanner] Error handling item 'index.page.xml': java.lang.NullPointerException: Cannot find URL from classLoader for index.page.xml, loading from org.jboss.web.tomcat.service.WebCtxLoader$ENCLoader@42b366

Looks like the same ClassLoader is still being used?