BIRT Report Engine 3.7 with Websphere 8 deployment issues

I've done a lot of searching for integration of the Report Engine with WebSphere relating to the error: org.eclipse.birt.core.exception.BirtException: error.CannotStartupOSGIPlatform. 
 
I'm at a loss. Any help would be greatly appreciated. 
 
Environment: 
-Spring based Web app integrated with Birt Report engine 3.7 
-Websphere 8 on Windows 
-Java 6 
 
Birt engine Code snippet: 
<pre class='_prettyXprint _lang-auto _linenums:0'>
@Service("birtService")
public class BirtServiceImpl implements BirtService
{
private IReportEngine engine = null;

@PostConstruct
public void startBirt() throws Exception
{
engine = null;
EngineConfig config = null;
config = new EngineConfig();
Platform.startup( config );

IReportEngineFactory factory = ( IReportEngineFactory ) Platform.createFactoryObject( IReportEngineFactory.EXTENSION_REPORT_ENGINE_FACTORY );
engine = factory.createReportEngine( config );
}

@PreDestroy
public void cleanUp() throws Exception
{
if ( engine != null )
{
engine.destroy();
}
Platform.shutdown();
RegistryProviderFactory.releaseDefault();
engine = null;
}
...
}</pre>
 
WEB-INF/lib folder contents: 
see attachment libcontents.txt (we use batik jars already so i removed the ones bundled with the report engine to resolve duplicate jars) 
 
I removed the following jars: 
org.apache.xerces_2.9.0.v201101211617.jar 
org.apache.xml.resolver_1.2.0.v201005080400.jar 
org.apache.xml.serializer_2.7.1.v201005080400.jar 
org.eclipse.core.resources_3.7.100.v20110510-0712.jar 
 
I also tried removing these jars (in both scenarios with and without it still failed) 
org.eclipse.osgi.services_3.3.0.v20110513.jar 
org.eclipse.osgi_3.7.2.v20120110-1415.jar 
 
Is there something that i'm missing in my configuration that i'm missing? Are there too many jars that i removed or too little? 
 
Thanks 
 
P.S. If you want the full stack trace i can attach that too but it's pretty much what everyone else has posted on other forums. I'm not deploying the viewer so the POJO deployment wiki doc wasn't too much help for me.

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Comments

CBR

Did you use the non-osgi or the osgi version of the birt runtime?
You could basically use the Pojo deployment guide as a starting point (only if you are using the default and not the osgi runtime!) because it doesn't make much difference if you deploy the viewer or the engine only.

HowardWong

Thanks for the prompt reply. I downloaded and used the non osgi 3.7.2 Birt Runtime.

I went and downloaded the osgi bundle just to see how that was bundled to verify and compare.

HowardWong

I tried to deploy the BIRT war based on the POJO guide removing (org.apache.xerces_2.9.0.v201101211617.jar,
org.apache.xml.resolver_1.2.0.v201005080400.jar, org.apache.xml.serializer_2.7.1.v201005080400.jar).
It worked fine.

I'm trying to understand what is different with this deployment and my spring based application. Are there more conflicting jars that i have failed to remove?

Would the next thing to do is to create a simple Spring based application that initializes the Birt Engine and go from there?