Bug 207897 [Automation][Regression]A DataException is thrown out when preview reportdesign
Description: A DataException is thrown out when preview reportdesign Test Date: 20071030 Test Build: BIRT2.2.2 v20071029 Step to reproduce: 1. Use the reportdesign attached 2. Preview it Expect result: Report can be previewed without any exception. Actual result: A DataException is thrown out.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
*            the "this" object in the new scope
	 */
	public void newScope( Object object )
	{
		Object jsObject = scriptContext.javaToJs( object );
		if ( jsObject instanceof Scriptable )
		{
			scriptContext.enterScope( (Scriptable) jsObject );
		}
		else
		{
			scriptContext.enterScope( );
		}
	}
	/**
	 * exits a variable scope.
	 */
	public void exitScope( )
	{
		scriptContext.exitScope( );
	}
	/**
	 * register beans in the execution context
	 * 
	 * @param map
	 *            name value pair.
	 */
	public void registerBeans( Map map )
	{
		if ( map != null )