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
public final static int GROUP_INFO_STREAM = 41;
	public final static int SUBQUERY_INFO_STREAM = 42;
	
	public final static int QUERY_DEFN_STREAM = 43;
	
	public final static int ORIGINAL_QUERY_DEFN_STREAM = 44;
	
	
	public final static int ROW_INDEX_STREAM = 51;
	
	
	public final static int QUERYID_INFO_STREAM = 61;
	
	
	public final static int SUBQUERY_PARENTINDEX_STREAM = 71;
	
	/**
	 * When mode is MODE_GENERATION, the writer stream of archive will be used.
	 * When mode is MODE_PRESENTATION, the reader stream of archive will be used.
	 * When mode is DIRECT_PRESENTATION, the archive will not be used.
	 * When mode is PRESENTATION_AND_GENERATION, both the write stream and the read 
	 * steram of archive will be used. 
	 * 
	 * @param mode
	 * @param scope
	 * @param reader
	 * @param writer
	 * @return an instance of DataEngineContext
	 */
	public static DataEngineContext newInstance( int mode, Scriptable scope,