Bug 200755 [smoke]Fail to preview Crosstab after deploy BIRT in application servers.[0601][1102]
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/plugin/DataEnginePlugin.java
{
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.runtime.Plugin#stop(org.osgi.framework.BundleContext)
	 */
	public void stop( BundleContext context ) throws Exception
	{
		destroyAggregationFactoryInstance( );
		ConnectionManager.releaseInstance();
		super.stop( context );
	}
	
	/**
	 * Destroy shared instance of AggregationFactory.
	 * 
	 */
	private void destroyAggregationFactoryInstance( )
	{
		AggregationFactory.destroyInstance( );
	}
	
}