java.lang.NullPointerException: This exception has no message.

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via openxava by sagartandel
, 1 year ago
This exception has no message.
java.lang.NullPointerException	at org.openxava.web.servlets.GenerateReportServlet.getFileName(GenerateReportServlet.java:242)	at org.openxava.web.servlets.GenerateReportServlet.doGet(GenerateReportServlet.java:217)	at javax.servlet.http.HttpServlet.doHead(HttpServlet.java:241)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)	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.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:662)