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java.lang.NullPointerException: 	at com.thortech.xl.webclient.actions.tcLookupDispatchAction.execute(Unknown Source)	at com.thortech.xl.webclient.actions.tcActionBase.execute(Unknown Source)	at com.thortech.xl.webclient.actions.tcAction.execute(Unknown Source)	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)	at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64)	at com.thortech.xl.webclient.security.SecurityFilter.doFilter(Unknown Source)	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:623)	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)	at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)	at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)	at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:313)	at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:199)	at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)	at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)	at java.lang.Thread.run(Thread.java:595)