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
it.next( );
		testFindGroup( it, new Object[]{
			"CHINA"
		}, 8 );
		testFindGroup( it, new Object[]{
				"CHINA", "Beijing"
		}, 8 );
		testFindGroup( it, new Object[]{
				"CHINA", "Shanghai"
		}, 6 );
		testFindGroup( it, new Object[]{
			"US"
		}, 4 );
		testFindGroup( it, new Object[]{
				"US", "New York"
		}, 2 );
		testFindGroup( it, new Object[]{
				"US", "Chicago"
		}, 4 );
		assertFalse( it.findGroup( new Object[]{
				null, null
		} ) );
		assertFalse( it.findGroup( new Object[]{
				null, "Chicago"
		} ) );
		assertFalse( it.findGroup( new Object[]{
				"CHINA", "Chicago"
		} ) );
		assertFalse( it.findGroup( new Object[]{
			"Chicago"