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Posted to user@struts.apache.org by javendo <ja...@yahoo.com.br> on 2005/08/25 12:00:05 UTC

TagHandlerPool, Struts 1.2.7 and Tomcat 5.5

Hi,
I am trying to port a web-application originally written with Tomcat 4.1 
to Tomcat 5.5. The application uses struts and throws the following 
exception when launched:

23:34:22,953 ERROR [login_jsp]] Servlet.service() for servlet 
login.login_jsp threw exception
java.lang.NullPointerException
       at 
org.apache.jasper.runtime.TagHandlerPool.reuse(TagHandlerPool.java:131)
       at login.login_jsp._jspx_meth_bean_message_0(login_jsp.java:135)
       at login.login_jsp._jspx_meth_html_html_0(login_jsp.java:96)
       at login.login_jsp._jspService(login_jsp.java:70)
       at 
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) 

       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) 

       at 
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) 

       at 
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463) 

       at 
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398) 

       at 
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) 

       at 
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1063) 

       at 
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:386) 

       at 
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229) 

       at 
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
       at 
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) 

       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) 

       at 
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81) 

       at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) 

       at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) 

       at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) 

       at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) 

       at 
org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39) 

       at 
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153) 

       at 
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59) 

       at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) 

       at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) 

       at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) 

       at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
       at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
       at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) 

       at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) 

       at 
org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) 

       at java.lang.Thread.run(Thread.java:595)

Thanks for any help.
Alessandro.


	
	
		
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