Bug 186940 Style name in theme cannot be identify by auto when reopen the library[01]
Description: Style name in theme cannot be identify by auto when reopen the library[01] Step: 1.Open a library and add a theme 2.New a style on the theme and use the default name that is "NewStyle" 3.Save the library, close it and reopen it again. 4.New another style on the same theme Actual result: The default style name on second times is also "NewStyle" Exception result: The default style name on second times is "NewStyle1"
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/api/GroupElementHandleTest.java
element2.setProperty( DataSource.COMMENTS_PROP, "Hi, Rock" ); 
		element3.setProperty( DataSource.COMMENTS_PROP, "Hi, Rock" ); 
		assertEquals(
				"Hi, Rock", groupElementHandle.getStringProperty( DataSource.COMMENTS_PROP ) ); 
		
		element2.setProperty( DataSource.COMMENTS_PROP, "Hi, Ivy" ); 
		assertEquals( null, groupElementHandle
				.getStringProperty( DataSource.COMMENTS_PROP ) );
		
		element1.setProperty( DataSource.COMMENTS_PROP, null );
		element2.setProperty( DataSource.COMMENTS_PROP, null );
		element3.setProperty( DataSource.COMMENTS_PROP, null );
		assertEquals( null, groupElementHandle
				.getStringProperty( DataSource.COMMENTS_PROP ) );
		
		elements = new ArrayList( );
		LabelHandle label1 = elemFactory.newLabel( "Label1" ); 
		LabelHandle label2 = elemFactory.newLabel( "Label2" ); 
		elements.add( label1 );
		elements.add( label2 );
		
		label1.setX( "123.123mm" ); 
		label2.setX( "123.123mm" ); 
		groupElementHandle = new SimpleGroupElementHandle( designHandle,
				elements );
		assertEquals(
				"123.123mm", groupElementHandle.getStringProperty( Label.X_PROP ) ); 
		
		label1.setX( "123.123mm" ); 
		label2.setX( "111.123mm" );