Hi,

I use drools guvnor first version 5.1.0, but now I have to use 5.0.1.

On the PC, it has to work on, the following error is produced, when I enter the drools webpage:

22.04.2010 14:24:03 org.apache.catalina.core.ApplicationContext log

SCHWERWIEGEND: Exception while dispatching incoming RPC call

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

            at java.util.ArrayList.RangeCheck(ArrayList.java:547)

            at java.util.ArrayList.get(ArrayList.java:322)

            at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.extract(ServerSerializationStreamReader.java:617)

            at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.readInt(ServerSerializationStreamReader.java:432)

            at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.prepareToRead(AbstractSerializationStreamReader.java:38)

            at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.prepareToRead(ServerSerializationStreamReader.java:383)

            at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:234)

            at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:163)

            at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86)

            at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

            at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

            at org.jboss.seam.web.ContextFilter$1.process(ContextFilter.java:42)

            at org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:53)

            at org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37)

            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

            at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

            at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

            at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)

            at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

            at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

            at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

            at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

            at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)

            at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)

            at java.lang.Thread.run(Thread.java:619)

That computer has Windows XP Prof SP3, Tomcat 6.0.20, Java jdk 6.0 update 17. The same error occurs with the jboss standalone. Version 5.1.0 works fine.

On another computer, that is configured nearly the same (WinXP prof SP3, Tomcat 6.0.20, java jdk 6.0 update 7) all works fine.

Maybe someone can even give me an advise, what could be the problem, or maybe have a solution.

Kind regards,

Dominik