Bug 140620 Chart scripting errors are ignored
Write a chart with an invalid script, the execution simply ignores the script. This makes it difficult to debug scripting. The error message is also not precise and needs improvements.
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/swing/SwingRendererImpl.java
2 * are.getInnerRadius( ),
					are.getStartAngle( ),
					are.getAngleExtent( ),
					Arc2D.PIE );
			Area fArea = new Area( outerArc );
			fArea.exclusiveOr( new Area( innerArc ) );
			Shape prevClip = _g2d.getClip( );
			Area ar2 = new Area( fArea );
			if ( prevClip != null )
			{
				Area ar1 = new Area( prevClip );
				ar2.intersect( ar1 );
			}
			_g2d.setClip( ar2 );
			_g2d.draw( fArea );
			_g2d.setClip( prevClip );
		}
		else
		{
			_g2d.draw( new Arc2D.Double( are.getTopLeft( ).getX( ),
					are.getTopLeft( ).getY( ),
					are.getWidth( ),
					are.getHeight( ),
					are.getStartAngle( ),
					are.getAngleExtent( ),
					toSwingArcType( are.getStyle( ) ) ) );
		}
		if ( sPrevious != null ) 
		{
			_g2d.setStroke( sPrevious );