Bug 211004 Failed to remove temp db directory after running multiple reports
Description: I use Report Engine API to do runAndrender, run and dataextract tasks on multiple reports. Before the Platform started, I change the temp folder(System.setProperty( "java.io.tmpdir", TEMP_HOME )). Each task is closed after it finished and I shutdown the Platform after all the tasks finished. In log I found "Fail to remove one or more file in temp db directory,but it will be removed when the VM exits: D:\BIRT_NG\temp/BIRTSampleDB_1196129572031_10a6ae2". In temp folder the BIRTSampleDB_XXX is still here but not removed. I think it is the issue when remove the Temp sampleDB. Build number: 2.3.0.v20071127-0630
data/org.eclipse.birt.report.data.oda.sampledb/src/org/eclipse/birt/report/data/oda/sampledb/SampledbPlugin.java
super.start(context);
	}
	/**
	 * @see org.eclipse.core.runtime.Plugin#stop(org.osgi.framework.BundleContext)
	 */
	public void stop(BundleContext context) throws Exception
	{
		logger.info( "Sampledb plugin stopping. Current startCount=" + startCount);
		synchronized ( SampledbPlugin.class )
		{
			if ( startCount >= 1 )
			{
				if ( -- startCount == 0 )
				{
					
					
					cleanUp();
				}
			}
		}
		super.stop(context);
	}
	
	private void cleanUp() throws Exception
	{
		
		shutDownDatabase();
		
		removeDatabase();