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Help to fix the error in creating BIRTengine

Johndr

Hi all, 
 
I am getting an exception at statement factory.createReportEngine(config) from the code below in Servlet. Could anyone please help me to fix this. 
I have copied all 84 jars from birt-runtime-3_7_0\ReportEngine\lib to lib folder in our web application. 
 
public static synchronized IReportEngine getBirtEngine(ServletContext sc) { 
IReportEngine engine = null; 
try { 
final EngineConfig config = new EngineConfig(); 
config.setPlatformContext(new PlatformServletContext(sc)); 
Platform.startup(config); 
IReportEngineFactory factory = (IReportEngineFactory) Platform 
.createFactoryObject(IReportEngineFactory.EXTENSION_REPORT_ENGINE_FACTORY); 
engine = factory.createReportEngine(config); 
} catch (Throwable t) { 
t.printStackTrace(); 
} 
 
return engine; 
} 
 
Exception: 
java.lang.NullPointerException 
at org.eclipse.birt.report.engine.api.impl.ReportEngine$EngineExtensionManager.<init>(ReportEngine.java:804) 
at org.eclipse.birt.report.engine.api.impl.ReportEngine.<init>(ReportEngine.java:110) 
at org.eclipse.birt.report.engine.api.impl.ReportEngineFactory$1.run(ReportEngineFactory.java:18) 
at org.eclipse.birt.report.engine.api.impl.ReportEngineFactory$1.run(ReportEngineFactory.java:1) 
at java.security.AccessController.doPrivileged(AccessController.java:202) 
at org.eclipse.birt.report.engine.api.impl.ReportEngineFactory.createReportEngine(ReportEngineFactory.java:14) 
 
Thanks and Regards, 
John

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Comments

Yaytay

Line 804 in ReortEngine.java is: 
<pre class='_prettyXprint _lang-auto _linenums:0'>
802 IExtensionRegistry registry = Platform.getExtensionRegistry( );
803 IExtensionPoint extensionPoint = registry
804 .getExtensionPoint( "org.eclipse.birt.core.FactoryService" );
</pre>
So your Platform is returning null for registry. 
 
My first guess is that your ServletContext is somehow invalid. 
Can you check that it is not null, and can you let us know what app server you are running on? 
Thanks.

Johndr

Thanks for your reply.
This error was because I forgot to delete platform folder from WEB-INF.
Now when I deleted the folder it is working fine.

Thanks and Regards,
John