Bug 159380 [regression]Not find DataEngineContextExt class cause all engine/dte smoke testing fail
Description Not find DataEngineContextExt class cause all engine/dte smoke testing fail Steps to reproduce: Run Engine/DTE smoke testing framework Expected result&#65306; Outputs are correct. Actaul result: All outputs are 0kb with Exception: Error happened while running the report. java.lang.NoClassDefFoundError: org/eclipse/birt/data/engine/impl/DataEngineContextExt at org.eclipse.birt.data.engine.api.DataEngineContext.setTmpdir(DataEngineContext.java:374) at org.eclipse.birt.report.engine.data.dte.DteDataEngine.<init>(DteDataEngine.java:71) at org.eclipse.birt.report.engine.data.DataEngineFactory.createDataEngine(DataEngineFactory.java:94) at org.eclipse.birt.report.engine.executor.ExecutionContext.getDataEngine(ExecutionContext.java:694) at org.eclipse.birt.report.engine.executor.ReportExecutor.execute(ReportExecutor.java:99) at org.eclipse.birt.report.engine.internal.executor.l18n.LocalizedReportExecutor.execute(LocalizedReportExecutor.java:38) at org.eclipse.birt.report.engine.layout.html.HTMLReportLayoutEngine.layout(HTMLReportLayoutEngine.java:68) at org.eclipse.birt.report.engine.api.impl.RunAndRenderTask.run(RunAndRenderTask.java:207) at org.eclipse.birt.report.engine.api.ReportRunner.runAndRenderReport(ReportRunner.java:237) at org.eclipse.birt.report.engine.api.ReportRunner.execute(ReportRunner.java:162) at org.eclipse.birt.report.engine.api.ReportRunner.main(ReportRunner.java:118)
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/api/DataEngineContext.java
/**
	 * @param streamID
	 * @param subStreamID
	 * @param streamType
	 */
	public void dropStream( String streamID, String subStreamID, int streamType )
	{
		String relativePath = getPath( streamID, subStreamID, streamType );
		
		if ( writer != null )
			writer.dropStream( relativePath );
	}
	
	/**
	 * Directly drop stream
	 * 
	 * @param streamPath
	 */
	public void dropStream( String streamPath )
	{
		if ( writer != null )
			writer.dropStream( streamPath );
	}
	/**
	 * According to the paramters of streamID, subStreamID and streamType, an
	 * input stream will be created for it. To make stream close simply, the
	 * stream needs to be closed by caller, and then caller requires to add
	 * buffer stream layer when needed.
	 *