Bug 141951 Export data throw NPE when target document doesn't exist
Description: Export data doesn't work when deploy birt in WebSphere6 Steps to reproduce: 1. Deploy birt in WebSphere6 2. Preview report and click Export Data Result: java.lang.NullPointerException Stack Trace: org.apache.axis.AxisFault.makeFault(AxisFault.java:101) org.eclipse.birt.report.soapengine.processor.AbstractBaseComponentProcessor.process(Unknown Source) org.eclipse.birt.report.soapengine.endpoint.BirtSoapBindingImpl.getUpdatedObjects(Unknown Source) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/BirtViewerReportService.java
format, Locale.US );
					paramValueObj = cfgConverter.parse( configValue,
							parameterObj.getDataType( ) );
				}
				else if ( !found )
				{
					
					paramValueObj = task.getDefaultValue( parameterObj
							.getName( ) );
				}
			}
		}
		return paramMap;
	}
	public IReportRunnable getReportRunnable( IViewerReportDesignHandle design )
			throws ReportServiceException
	{
		IReportRunnable runnable;
		if ( design.getContentType( ) == IViewerReportDesignHandle.RPT_RUNNABLE_OBJECT )
		{
			
			runnable = (IReportRunnable) design.getDesignObject( );
		}
		else
		{
			
			try
			{
				runnable = ReportEngineService.getInstance( ).openReportDesign(
						design.getFileName( ) );