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.engine/src/org/eclipse/birt/chart/script/ScriptHandler.java
{
					logger.log( jsx );
				}
				return oReturnValue;
			}
			else
			{
				return null;
			}
		}
	}
	/**
	 * Evaluates the given expression and returns the value.
	 * 
	 * @param sScriptContent
	 */
	public final Object evaluate( String sScriptContent ) throws ChartException
	{
		final Context cx = Context.enter( );
		try
		{
			return cx.evaluateString( scope, sScriptContent, "<cmd>", 1, null ); 
		}
		catch ( JavaScriptException jsx )
		{
			throw new ChartException( ChartEnginePlugin.ID,
					ChartException.SCRIPT,
					jsx );
		}
		finally