Bug 172092 [regression][automation] __maxrows=1 url pattern did not work
steps to reproduce: - preview report using the following url fragment, preview?__report=report/regression_142673.rptdesign&__designer=true&__maxrows=1 expected behavior: - only one data row is displayed actual behavior/: - all data rows are displayed
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/EngineTask.java
* sets the task context
	 * 
	 * @param context
	 *            the task context
	 */
	public void setAppContext( Map context )
	{
		HashMap appContext = new HashMap();
		HashMap sysAppContext = engine.getConfig( ).getAppContext( );
		if (sysAppContext != null)
		{
			appContext.putAll( sysAppContext );
		}
		if ( context != null )
		{
			appContext.putAll( context );
		}
		
		executionContext.setAppContext( appContext );
		StringBuffer logStr = null;
		if ( log.isLoggable( Level.FINE ) )
			logStr = new StringBuffer( );
		
		if ( !appContext.isEmpty( ) )
		{
			Set entries = appContext.entrySet( );
			for ( Iterator iter = entries.iterator( ); iter.hasNext( ); )
			{
				Map.Entry entry = (Map.Entry) iter.next( );