Bug 179913 Meter Chart color by categories with null values does not work correctly [0001]
Description: Meter Chart color by categories with null values does not work correctly. Build number: 2.2.0.v20070329-1055 Steps to reproduce: 1. New a Meter Chart with values as follows: Moto, null; Nokia, 58; null, 66; Benq, null. 2. In "Format Chart" tab, select "Series" node, choose "Color by Categories". 3. Preview. Expected result: 1. The needle which shows the second value should take the second color. 2. There should be four in the legend area and the third name is null. Actual result: 1. The needle which shows the second value should take the first color. 2. There should be three in the legend area. Error log: N/A
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
return null;
		}
		
		Arrays.sort( a1 );
		Arrays.sort( a2 );
		if ( a1[a1.length - 1] < a2[0] || a1[0] > a2[a2.length - 1] )
		{
			return null;
		}
		
		if ( a1.length > a2.length )
		{
			int[] tmp = a1;
			a1 = a2;
			a2 = tmp;
		}
		List dup = new ArrayList( );
		
		for ( int i = 0; i < a1.length; i++ )
		{
			if ( Arrays.binarySearch( a2, a1[i] ) >= 0 )
			{
				dup.add( new Integer( a1[i] ) );
			}
		}
		if ( dup.size( ) == 0 )
		{
			return null;
		}
		else