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[protege-discussion] Error while trying to access MyProtege webpage in WebProtege

Daya Patil daya.patil at tcs.com
Thu Sep 3 23:39:00 PDT 2009


Hi,

I have installed WebProtege on my Application server (WAS) using the 
instructions given in the installation manuaa. Now, I am trying to open 
the My Protege web page (the first page which lists the ontologies). The 
page opens but does not show the list of ontologies. I get the following 
error in my log file:

[9/4/09 11:53:47:692 IST] 00000054 WebApp        E   SRVE0026E: [Servlet 
Error]-[AdminServiceImpl]: java.lang.Exception: java.lang.LinkageError: 
LinkageError while defining class: 
edu.stanford.bmir.protege.web.server.AdminServiceImpl
Could not be defined due to: 
edu/stanford/bmir/protege/web/server/AdminServiceImpl (Unsupported 
major.minor version 49.0)
This is often caused by having a class defined at multiple
locations within the classloader hierarchy.  Other potential causes
include compiling against an older or newer version of the class
that has an incompatible method signature.
Dumping the current context classloader hierarchy:
    ==> indicates defining classloader
==>[0] 
com.ibm.ws.classloader.CompoundClassLoader at 2b939c89
   Local ClassPath: 
D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\classes;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\antlr-2.7.5.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\arq-extra.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\arq.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\bioportalReference.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\change-management.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\chat.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\commons-lang-2.0.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\commons-logging-1.1.1.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\concurrent.jar;D:\IBM\pf\wp
 s\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\edtftpj-1.5.2.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\gwt-servlet.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\gwtext.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\icu4j_3_4.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\iri.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\jcalendar.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\jdom.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\jena.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\jep-2.4.0.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\log4j-1.2.12.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.
 ear\webprotege.war\WEB-INF\lib\log4j.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\looks-2.1.3.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\orphanNodesAlg.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\owlsyntax.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\protege-collab.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\protege-owl.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\protege.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\rdf-api.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\rdf-backend.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\standard-extensions.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprot
 ege.war\WEB-INF\lib\stax-api-1.0.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\unicode_panel.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\wstx-asl-3.0.0.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\xercesImpl.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\xml-apis.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\xpp3-1.1.3.4.C.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war\WEB-INF\lib\xstream-1.3.jar;D:\IBM\pf\wps\installedApps\widCell\webprotege_war.ear\webprotege.war
   Delegation Mode: PARENT_FIRST
   [1] com.ibm.ws.classloader.JarClassLoader at 718969993 Local Classpath: 
Delegation mode: PARENT_FIRST
   [2] com.ibm.ws.classloader.ProtectionClassLoader at 7af1dc8b
   [3] com.ibm.ws.bootstrap.ExtClassLoader at 79731c88
   [4] sun.misc.Launcher$AppClassLoader at 79659c88
   [5] sun.misc.Launcher$ExtClassLoader at 79199c88
---Original exception---
java.lang.UnsupportedClassVersionError: 
edu/stanford/bmir/protege/web/server/AdminServiceImpl (Unsupported 
major.minor version 49.0)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java(Compiled 
Code))
        at 
java.security.SecureClassLoader.defineClass(SecureClassLoader.java(Compiled 
Code))
        at 
com.ibm.ws.classloader.CompoundClassLoader._defineClass(CompoundClassLoader.java:518)
        at 
com.ibm.ws.classloader.CompoundClassLoader.findClass(CompoundClassLoader.java(Compiled 
Code))
        at 
com.ibm.ws.classloader.CompoundClassLoader.loadClass(CompoundClassLoader.java(Compiled 
Code))
        at java.lang.ClassLoader.loadClass(ClassLoader.java(Compiled 
Code))
        at java.beans.Beans.instantiate(Beans.java:202)
        at java.beans.Beans.instantiate(Beans.java:63)
        at 
com.ibm.ws.webcontainer.servlet.ServletWrapper$3.run(ServletWrapper.java:1780)
        at 
com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java(Compiled 
Code))
        at 
com.ibm.ws.webcontainer.servlet.ServletWrapper.loadServlet(ServletWrapper.java:1775)
        at 
com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:558)
        at 
com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3071)
        at 
com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:236)
        at 
com.ibm.ws.webcontainer.VirtualHost.handleRequest(VirtualHost.java:210)
        at 
com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1958)
        at 
com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:98)
        at 
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:472)
        at 
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:411)
        at 
com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:101)
        at 
com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueManager.java:566)
        at 
com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager.java:619)
        at 
com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager.java:952)
        at 
com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager.java:1039)
        at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1471)

--- end Original exception----

        at 
com.ibm.ws.webcontainer.servlet.ServletWrapper.loadServlet(ServletWrapper.java:1860)
        at 
com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:558)
        at 
com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3071)
        at 
com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:236)
        at 
com.ibm.ws.webcontainer.VirtualHost.handleRequest(VirtualHost.java:210)
        at 
com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1958)
        at 
com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:98)
        at 
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:472)
        at 
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:411)
        at 
com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:101)
        at 
com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueManager.java:566)
        at 
com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager.java:619)
        at 
com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager.java:952)
        at 
com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager.java:1039)
        at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1471)

Can you please help me figure ut the problem?

Thanks,
Daya.
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