Bug 180608 [Regression]NPE throws out when preview the result in dataset[07]
Description: [Regression]NPE throws out when preview the result in dataset[07] Build number: 2.2.0.v20070403-0630 Steps to reproduce: 1, Use attached report 2, Edit Data Set 3, Preview the Data Set Expected result: The preview should be success Actual result: NPE throws out Error log:
data/org.eclipse.birt.data.tests/test/org/eclipse/birt/data/engine/binding/FeaturesTest.java
{
		String[] bindingNameGroup = new String[2];
		bindingNameGroup[0] = "GROUP_COUNTRY";
		bindingNameGroup[1] = "GROUP_CITY";
		IBaseExpression[] bindingExprGroup = new IBaseExpression[2];
		bindingExprGroup[0] = new ScriptExpression( "dataSetRow.COUNTRY" );
		bindingExprGroup[1] = new ScriptExpression( "dataSetRow.CITY" );
		GroupDefinition[] groupDefn = new GroupDefinition[]{
				new GroupDefinition( "group0" ), new GroupDefinition( "group1" )
		};
		groupDefn[0].setKeyExpression( "row.GROUP_COUNTRY" );
		groupDefn[1].setKeyExpression( "row.GROUP_CITY" );
		String[] bindingNameFilter = new String[1];
		bindingNameFilter[0] = "SALE_FILTER";
		IBaseExpression[] bindingExprFilter = new IBaseExpression[1];
		bindingExprFilter[0] = new ScriptExpression( "dataSetRow.AMONT && 100" );
		
		FilterDefinition[] filters = new FilterDefinition[]{
			new FilterDefinition( new ScriptExpression( "row.SALE_FILTER_E" ) )
		};
		String[] bindingNameRow = new String[4];
		bindingNameRow[0] = "ROW_COUNTRY";
		bindingNameRow[1] = "ROW_CITY";
		bindingNameRow[2] = "ROW_SALE_DATE";
		bindingNameRow[3] = "ROW_AMOUNT";
		IBaseExpression[] bindingExprRow = new IBaseExpression[4];
		bindingExprRow[0] = new ScriptExpression( "dataSetRow.COUNTRY" );
		bindingExprRow[1] = new ScriptExpression( "dataSetRow.CITY" );
		bindingExprRow[2] = new ScriptExpression( "dataSetRow.SALE_DATE" );
		bindingExprRow[3] = new ScriptExpression( "dataSetRow.AMOUNT" );