Error in an application integrating report engine

Mad1s0n

Hi all,<br />
I am currently integrating the report engine into a client/server application. The engine is on the server side and is due to send reports as byte arrays towards the client which will open them.<br />
Using Maven, I uploaded the Birt libraries onto the maven repository and set the BIRT_HOME to a location on my machine for test purpose which is obviously different from the maven repo.<br />
The app compiles, but when launching the report, an exception occurs at the engine.openReportDesign("") level. The thing is that when launching the report with the same BIRT_HOME and the ReportEngine in the classpath (thus no maven) from a simple project, the report is generated.<br />
I sense that this is a version problem, but I don't know where to look. Some insight would be most welcome.<br />
<br />
Thanks! <br />
<br />
the code that launches the report:<br />
<br />
<pre class='_prettyXprint _lang-auto _linenums:0'>
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try {
EngineConfig config = new EngineConfig();
config.setBIRTHome("C:\\Documents and Settings\\sco\\Bureau\\birtruntime\\ReportEngine");
Platform.startup(config);
IReportEngineFactory factory = (IReportEngineFactory) Platform.createFactoryObject(IReportEngineFactory.EXTENSION_REPORT_ENGINE_FACTORY);
IReportEngine engine = factory.createReportEngine(config);
IReportRunnable design = engine.openReportDesign("C:\\Documents and Settings\\sco\\Bureau\\birtruntime\\ReportEngine\\samples\\customers.rptdesign");
IRunAndRenderTask task = engine.createRunAndRenderTask(design);
task.setParameterValue("languageParameter", language);
PDFRenderOption options = new PDFRenderOption();
options.setOutputStream(bos);
options.setOutputFormat("pdf");
task.setRenderOption(options);
task.run();
task.close();
engine.destroy();
Platform.shutdown();
} catch(Exception e) {
e.printStackTrace();
}
return bos.toByteArray();
</pre>
<br />
And the exception:<br />
<br />
<pre class='_prettyXprint _lang-auto _linenums:0'>
10 f?vr. 2011 11:22:24 org.eclipse.birt.report.model.metadata.MetaDataReader read
GRAVE: null
java.lang.NullPointerException
at org.eclipse.birt.report.model.core.DesignElement.initSlots(DesignElement.java:2990)
at org.eclipse.birt.report.model.elements.ReportDesignImpl.<init>(ReportDesignImpl.java:82)
at org.eclipse.birt.report.model.elements.ReportDesign.<init>(ReportDesign.java:52)
at org.eclipse.birt.report.model.parser.DesignParserHandler.<init>(DesignParserHandler.java:49)
at org.eclipse.birt.report.model.parser.DesignReader.read(DesignReader.java:86)
at org.eclipse.birt.report.model.core.DesignSessionImpl.openDesign(DesignSessionImpl.java:315)
at org.eclipse.birt.report.model.api.SessionHandleImpl.openDesign(SessionHandleImpl.java:294)
at org.eclipse.birt.report.engine.parser.ReportParser.getDesignHandle(ReportParser.java:158)
at org.eclipse.birt.report.engine.api.impl.ReportEngineHelper.getReportDesignHandle(ReportEngineHelper.java:255)
at org.eclipse.birt.report.engine.api.impl.ReportEngineHelper.openReportDesign(ReportEngineHelper.java:274)
at org.eclipse.birt.report.engine.api.impl.ReportEngineHelper.openReportDesign(ReportEngineHelper.java:196)
at org.eclipse.birt.report.engine.api.impl.ReportEngineHelper.openReportDesign(ReportEngineHelper.java:130)
at org.eclipse.birt.report.engine.api.impl.ReportEngine.openReportDesign(ReportEngine.java:295)
</pre>