Bug 193828 message should not be popped when adding group level to cross tab
In a cross tab click on an aggregation type data cell and select 'show/hide Group Levels'. If I want to add a level, A message dialog pops up. Expected: No message dialog should pop up when adding a level. The dialog should appear only when a level in unchecked.
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/editors/action/AddLevelHandleAction.java
private void processor(List ori, List newList, List nullLevelHandle)throws SemanticException
	{
	
		for (int i=nullLevelHandle.size( )-1; i>=0; i--)
		{
			int index = ((Integer)nullLevelHandle.get( i )).intValue( );
			viewHandle.removeLevel( index );
		}
		
		for (int i=0; i<ori.size( ); i++)
		{
			LevelHandle tempHandle = (LevelHandle)ori.get(i );
			if (!newList.contains( tempHandle ))
			{
				viewHandle.removeLevel( tempHandle.getQualifiedName( ) );
			}
		}
		
		Collections.sort( newList, new LevelComparator() );
		for (int i=0; i<newList.size( ); i++)
		{
			LevelHandle tempHandle = (LevelHandle)newList.get(i );
			if (viewHandle.getLevel( tempHandle.getQualifiedName( ) ) == null)
			{
				insertLevelHandle( tempHandle,i);
			}
		}
	}
	
	private static class LevelComparator implements Comparator