We have a JSP application using Tomcat 3.2.1. We are getting a Null Pointer Exception inside the java.awt.Window constructor (stack trace below) in one machine where this application is deployed. The error doesn't seem easily reproducible, though. The line which triggers the error is:
JFrame frame = new JFrame(); Does anyone has a suggestion on what to do ??? Thanks, Wesley PS: Machine has W2K and JRE 1.3.1 Error: 500 Location: /RFITPrintFileDownload.jsp Internal Servlet Error: javax.servlet.ServletException at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:459) at _0002fRFITPrintFileDownload_0002ejspRFITPrintFileDownload_jsp_0._jspService(_0002fRFITPrintFileDownload_0002ejspRFITPrintFileDownload_jsp_0.java:210) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:177) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:318) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:391) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404) at org.apache.tomcat.core.Handler.service(Handler.java:286) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743) at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:210) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Unknown Source) Root cause: java.lang.NullPointerException at java.awt.Window.(Unknown Source) at java.awt.Frame.(Unknown Source) at java.awt.Frame.(Unknown Source) at javax.swing.JFrame.(Unknown Source) at com.nortel.nsm.rfinterference.PDFGenerator.includeChartInFlow(PDFGenerator.java:425) at com.nortel.nsm.rfinterference.PDFGenerator.locateChartInFlow(PDFGenerator.java:649) at com.nortel.nsm.rfinterference.PDFGenerator.fillBody(PDFGenerator.java:334) at com.nortel.nsm.rfinterference.PDFGenerator.generatePDF(PDFGenerator.java:126) at com.nortel.nsm.rfinterference.RFITPrintBean.generateReport(RFITPrintBean.java:50) at _0002fRFITPrintFileDownload_0002ejspRFITPrintFileDownload_jsp_0._jspService(_0002fRFITPrintFileDownload_0002ejspRFITPrintFileDownload_jsp_0.java:164) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:177) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:318) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:391) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404) at org.apache.tomcat.core.Handler.service(Handler.java:286) at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372) at org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:797) at org.apache.tomcat.core.ContextManager.service(ContextManager.java:743) at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:210) at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416) at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498) at java.lang.Thread.run(Unknown Source) __________________________________________________ Do You Yahoo!? Send your FREE holiday greetings online! http://greetings.yahoo.com -- To unsubscribe: <mailto:[EMAIL PROTECTED]> For additional commands: <mailto:[EMAIL PROTECTED]> Troubles with the list: <mailto:[EMAIL PROTECTED]>
