Error message in JMS log,
2013-01-21 18:03:33,169 INFO [STDOUT] (http-0.0.0.0-9080-1) Loading configuration :com/documentum/mthdservlet/discan.properties
2013-01-21 18:03:33,185 INFO [STDOUT] (http-0.0.0.0-9080-1) Loading configuration completed.
2013-01-21 18:03:37,709 INFO [STDOUT] (http-0.0.0.0-9080-1) Loading configuration :com/documentum/mthdservlet/discan.properties
2013-01-21 18:03:37,724 INFO [STDOUT] (http-0.0.0.0-9080-1) Loading configuration completed.
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) java.lang.IllegalArgumentException: object is not an instance of declaring class
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at java.lang.reflect.Method.invoke(Method.java:597)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.bpm.rtutil.GetDocbaseSessionFromSessionAdapter.getDocbaseSession(GetDocbaseSessionFromSessionAdapter.java:46)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.bpm.util.LinkToFolder.performLinkToFolder(LinkToFolder.java:125)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.bpm.util.LinkToFolder.doTask(LinkToFolder.java:79)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.bpm.rtutil.WorkflowMethod.execute(WorkflowMethod.java:214)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.bpm.rtutil.AbstractWorkflowMethod.executeMethod(AbstractWorkflowMethod.java:27)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.bpm.rtutil.GenericWorkflowMethod.execute(GenericWorkflowMethod.java:124)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.bpm.rtutil.GenericWorkflowMethod.execute(GenericWorkflowMethod.java:65)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.mthdservlet.DfMethodRunner.runIt(Unknown Source)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.mthdservlet.AMethodRunner.runAndReturnStatus(Unknown Source)
2013-01-21 18:03:39,643 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.mthdservlet.DoMethod.invokeMethod(Unknown Source)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at com.documentum.mthdservlet.DoMethod.doPost(Unknown Source)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-2) at java.lang.Thread.run(Thread.java:662)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) java.lang.IllegalArgumentException: object is not an instance of declaring class
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at java.lang.reflect.Method.invoke(Method.java:597)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.bpm.rtutil.GetDocbaseSessionFromSessionAdapter.getDocbaseSession(GetDocbaseSessionFromSessionAdapter.java:46)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.bpm.util.LinkToFolder.performLinkToFolder(LinkToFolder.java:125)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.bpm.util.LinkToFolder.doTask(LinkToFolder.java:79)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.bpm.rtutil.WorkflowMethod.execute(WorkflowMethod.java:214)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.bpm.rtutil.AbstractWorkflowMethod.executeMethod(AbstractWorkflowMethod.java:27)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.bpm.rtutil.GenericWorkflowMethod.execute(GenericWorkflowMethod.java:124)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.bpm.rtutil.GenericWorkflowMethod.execute(GenericWorkflowMethod.java:65)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.mthdservlet.DfMethodRunner.runIt(Unknown Source)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.mthdservlet.AMethodRunner.runAndReturnStatus(Unknown Source)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.mthdservlet.DoMethod.invokeMethod(Unknown Source)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at com.documentum.mthdservlet.DoMethod.doPost(Unknown Source)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
2013-01-21 18:03:39,659 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
2013-01-21 18:03:39,674 ERROR [STDERR] (http-0.0.0.0-9080-3) at java.lang.Thread.run(Thread.java:662)
Does any one know what is the reason?