Nithya Venkatesh

Congrats !!!


Which version of the exam did you take...
is it 1.5 or 1.4?
Also, if it is 1.5, can you suggest any good study materials.
I am planning to take 1.5 exam, Is 1.5 similar to 1.4, are the study materials used for preparing 1.4 sufficient for 1.5. Please suggest, i am confused.

Thanks,
Nithya

hi,
i am new to reports, am able to create and run basic reports successfully, but i want the details abt the scriptlet and crosstabs...
how can we make use of them, a step by step approach will be more helpful as i wanted to create a sample and run it myself.
are there any demo's available?
any detail documents?
Please help me on this... i need it urgently
i use iReport1.2.5.

Thanks in advance

I have created a web application with Jasper reports. during the stress test, we were able to run the same report simultaneously for 100 concurrent users, after that we get the following error. I hope there is no problem in my code (correct me if i am wrong)
We use Web Sphere

The error we get is as follows:

The path it searches for the file is correct

java.io.FileNotFoundException: /.../.../.../../.../..*.war/reports/reportfile.jasper (Too many open files) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.(FileInputStream.java:106) at com.wily.introscope.agent.probe.io.ManagedFileInputStream.(ManagedFileInputStream.java:89) at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:85) at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:64) at com.workforcesoftware.servlets.ReportServlet2.getCompiledReport(ReportServlet2.java:712) at com.workforcesoftware.servlets.ReportServlet2.doPost(ReportServlet2.java:423) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110) at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174) at com.ibm.ws.webcontainer.servlet.ServicingServletState.service(StrictLifecycleServlet.java:333) at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116) at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283) at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42) at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:61) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:1009) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:529) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:208) at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:134) at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:321) at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71) at com.ibm.ws.webcontainer.cache.invocation.CacheableInvocationContext.invoke(CacheableInvocationContext.java:120) at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:250) at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334) at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56) at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:652) at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:448) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:937) NESTED BY : net.sf.jasperreports.engine.JRException: Error loading object from file : /.../.../.../../.../..*.war/reports/reportfile.jasper at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:92) at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:64) at com.workforcesoftware.servlets.ReportServlet2.getCompiledReport(ReportServlet2.java:712) at com.workforcesoftware.servlets.ReportServlet2.doPost(ReportServlet2.java:423) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110) at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174) at com.ibm.ws.webcontainer.servlet.ServicingServletState.service(StrictLifecycleServlet.java:333) at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116) at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283) at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42) at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:61) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:1009) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:529) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:208) at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:134) at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:321) at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71) at com.ibm.ws.webcontainer.cache.invocation.CacheableInvocationContext.invoke(CacheableInvocationContext.java:120) at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:250) at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334) at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56) at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:652) at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:448) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:937)

if this really cannot find the file, then how could it run successfully for 100 users?
Have anyone experienced this problem?

Thanks for your help.