NullPointerException --> Source not found for MappedRandomAccessFile.close()

pierrik

Hello everyone,<br />
<br />
I'm developing an web application. I'm using BIRT 2.2.1.1 + jdk 1.4 + MyEclipse<br />
<br />
I design my report with BIRT Designer in MyEclipse, and generate the report in a class java.<br />
<br />
Every time that I generate my report, and when the code runs until "<span style='color: #FF0000'>IRunAndRenderTask.run()</span>" the debug of MyEclipse pops-up, gives me a "<span style='color: #FF0000'>NullPointerException</span>" and "<span style='color: #FF0000'>Source not found for MappedRandomAccessFile.close() line: 173</span>".<br />
However, my report manages to report itself, and my thread is suspended.<br />
<br />
Here goes my code:<br />
<pre class='_prettyXprint _lang-auto _linenums:0'>

public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws IsoException, IOException
{
String isolineProjectRepository = null;
Context initCtx;
try {
initCtx = new InitialContext();

Context envCtx = (Context ) initCtx.lookup("java:comp/env");
isolineProjectRepository = (String) envCtx.lookup("fileIsolineProjectRepository");
} catch (NamingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}


response.setContentType("application/download");
response.setHeader("Content-disposition", "attachment; filename=" + pa.getCurrentProjectShortDenom() + "overview.pdf");
response.setHeader("pragma", "no-cache");
response.setHeader("cache-control", "no-cache");
response.setHeader("expires", "0");
OutputStream output = response.getOutputStream();

EngineConfig config = new EngineConfig();

config.setBIRTHome(isolineProjectRepository + "/ReportEngine");
config.setLogConfig(isolineProjectRepository + "/ReportEngine", Level.WARNING);
// Explicitly set up the stand-alone application
// Start the platform for a non-RCP application.
try {
Platform.startup(config);
} catch (BirtException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
IReportEngineFactory factory = (IReportEngineFactory) Platform
.createFactoryObject(IReportEngineFactory.EXTENSION_REPORT_ENGINE_FACTORY);

IPDFRenderOption option = new PDFRenderOption();

option.setOutputFormat(PDFRenderOption.OUTPUT_FORMAT_PDF);

option.setOutputStream(output);
// Create the engine.
IReportEngine engine = factory.createReportEngine(config);
String designName = null;
if ("T".equals(pa.getProjectActivityType().getProjectActivityTypeShortName()))
{
designName = isolineProjectRepository + "/ActivityInfo.rptdesign";
}
else
{
designName = isolineProjectRepository + "/ProjectInfo.rptdesign";
}

IReportRunnable runnable = null;
try {
runnable = engine.openReportDesign(designName);

} catch (EngineException e) {
System.err.println("Design " + designName + " not found!");
engine.destroy();
}

// Get the value of parameters.

IRunAndRenderTask task = engine.createRunAndRenderTask(runnable);


task.setRenderOption(option);

try {
task.run();
} catch (EngineException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
task.close();

output.flush();
output.close();

return null;
}

</pre>
<br />
<br />
Could any one give my a hand? Waiting for you!<br />
Thanks a lot!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

pierrik

any idea?
Thousands thanks!!!