Bug 124251 the data cann't been exported.
Description: the data cann't been exported. Steps to reproduce: 1. new a report 2. new a datasource and a data set(DS_A) 3. use an external library 4. drag a table to the report layout from the imported library 5. insert an another table into the layout of the report and bind the data set(DS_A) 6. preview in the 'Web Viewer' and export the data Actual result: The data can been exported. Expect result: The data can been exporteded
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/DataExtractionTask.java
}
		catch ( IOException ioe )
		{
			executionContext.addException( new EngineException(
					"Can't load the data in report document", ioe ) );
			logger.log( Level.SEVERE, ioe.getMessage( ), ioe );
		}
	}
	
	private void readStringList( DataInputStream dis, List list ) throws IOException
	{
		int size = IOUtil.readInt( dis );
		for( int i=0; i<size; i++ )
		{
			String str = IOUtil.readString( dis );
			list.add( str );
		}
	}
	
	public void setInstanceID( InstanceID iid )
	{
		instanceId = iid;
		currentResult = null;
	}
	
	public void selectResultSet( String displayName )
	{
		assert displayName != null;
		prepareMetaData( );