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[protege-discussion] WebProtege load failure

Lexing Xie xlx at ee.columbia.edu
Mon Jan 5 15:48:41 PST 2009


(list owner: please ignore an earlier copy sent to the wrong address, 
thanks)

Hello -
I'm just wondering if you could help take a look at the following error 
upon setting up web protege (thanks in advance in taking newbie questions).

Error symptom:
WebProtege ontology list displays fine at an url looking like 
http://server.domain.com:8080/webprotege/WebProtege.html,
      .. logging in seemed to work but there was no username displayed 
on the overview page.
*but *individual ontology files refused to open, with an error box 
saying "load project Collaborative Pizza failed. message: the call 
failed on the server, see server log for details"
enclosed  below are (1) server log message about "Exception while 
dispatching incoming RPC call"; (2) screenshot of the error box.
I tried changing the project location to absolute paths in either or 
both copies of metaproject but did not help.

System setup:
- downloaded and installed copies of stand-alone full Protege (build 
513) + webprotege.war (built Nov 26 16:00, w. Tomcat 5.5)
- edited the metaproject, protege.properties etc according to the 
Protege Client-Server and the WebProtegeAdmin guides.

Q1: could you see why there is an error?
Q2: which copy of metaproject is read (in examples/server or  in 
Tomcat5.5/webapps/webprotege/projects/) ... should they be always kept 
identical? where is relative path example/* resolved ...

Thanks very much!


*(1) error log message* from stdout_20090105.log from Tomcat 5.5 reads 
as follows:

ERROR [http-8080-1] (ApplicationContext.java:678) - Exception while 
dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method 
'public abstract java.lang.Integer 
edu.stanford.bmir.protege.web.client.rpc.OntologyService.loadProject(java.lang.String)' 
threw an unexpected exception: java.lang.RuntimeException: Cannot open 
project Collaborative Pizza
    at 
com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:360)
    at 
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:546)
    at 
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164)
    at 
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
    at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
    at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
    at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
    at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
    at 
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:835)
    at 
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:640)
    at 
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1286)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Cannot open project Collaborative 
Pizza
    at 
edu.stanford.bmir.protege.web.server.ProjectManager.ensureProjectOpen(Unknown 
Source)
    at 
edu.stanford.bmir.protege.web.server.ProjectManager.getServerProject(Unknown 
Source)
    at 
edu.stanford.bmir.protege.web.server.OntologyServiceImpl.loadProject(Unknown 
Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at 
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:527)
    ... 16 more


*(2)  error screen-shot*

error message screenshot (see attachment)



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