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/impl/DataEngineImpl.java
* that its resources can be safely released as appropriate.
	 * This tells DtE that there is no more ReportQuery
	 * on a data set that uses such data source connection.
	 * The data source identified by name, should be one referenced 
	 * in one or more of the previously prepared ReportQuery.  
	 * Otherwise, it would simply return with no-op.
	 * <br>
	 * In BIRT Release 1, this method will likely be called by FPE 
	 * at the end of a report generation.
	 * @param	dataSourceName	The name of a data source connection.
	 */
	public void closeDataSource( String dataSourceName ) throws DataException
	{
		logger.entering( "DataEngineImpl",
				"closeDataSource",
				dataSourceName );
		if ( dataSources == null )
		{
			IllegalStateException e = new IllegalStateException( "DataEngine has been shutdown" );
			logger.logp( Level.WARNING,
					DataEngineImpl.class.getName( ),
					"closeDataSource",
					"DataEngine has been shutdown",
					e );
			throw e;
		}
		logger.logp( Level.FINE,
				DataEngineImpl.class.getName( ),
				"closeDataSource",
				"Close DataSource :" + dataSourceName );