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
IBaseExpression[] bindingExprRow = new IBaseExpression[]{
				new ScriptExpression( "dataSetRow.COUNTRY", 0 ),
				new ScriptExpression( "dataSetRow.CITY", 0 ),
				new ScriptExpression( "dataSetRow.SALE_DATE", 0 ),
				new ScriptExpression( "dataSetRow.AMOUNT", 0 ),
				new ScriptExpression( "Total.sum(dataSetRow.AMOUNT,dataSetRow.COUNTRY == \"US\",0)",
						0 ),
				new ScriptExpression( "Total.sum(dataSetRow.AMOUNT,dataSetRow.COUNTRY == \"CHINA\",0)",
						0 )
		};
		FilterDefinition[] filterDefn = new FilterDefinition[]{
				new FilterDefinition( new ConditionalExpression( "row.ROW_COUNTRY",
						ConditionalExpression.OP_EQ,
						"\"CHINA\"" ) ),
				new FilterDefinition( new ConditionalExpression( "row.ROW_AMOUNT",
						ConditionalExpression.OP_BOTTOM_N,
						"4" ) ),
				new FilterDefinition( new ConditionalExpression( "row.ROW_AMOUNT",
						ConditionalExpression.OP_TOP_N,
						"5" ) )
		};
		this.createAndRunQuery( bindingNameGroup,
				bindingExprGroup,
				groupDefn,
				null,
				null,
				null,
				null,
				null,
				filterDefn,