Bug 181361 Exception is thrown out in Chart builder when you set all null values for Value Series [0001]
Description: Exception is thrown out in Chart builder when you set all null values for Value Series. Build number: 2.2.0.v20070405-0630 Steps to reproduce: 1. Create a Bar Chart, set all null value data for Value Series. Expected result: No exception is thrown out. Actual result: Exception is thrown out (See the screenshot). Error log: N/A
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/PlotWith2DAxes.java
dEnd = dTmp;
				iDirection = BACKWARD;
			}
			else
			{
				dStart = dY;
				dEnd = dY + dH;
				iDirection = FORWARD;
			}
		}
		scPrimaryBase = AutoScale.computeScale( ids,
				oaxPrimaryBase,
				dsi,
				iAxisType,
				dStart,
				dEnd,
				sc,
				axPrimaryBase.getFormatSpecifier( ),
				rtc,
				iDirection,
				1,
				iMarginPercent );
		
		oaxPrimaryBase.set( scPrimaryBase );
		
		AutoScale scPrimaryOrthogonal = null;
		OneAxis oaxPrimaryOrthogonal = aax.getPrimaryOrthogonal( );
		iAxisType = getAxisType( axPrimaryOrthogonal );
		oaData = null;
		if ( ( iAxisType & NUMERICAL ) == NUMERICAL