Bug 172273 Grid insert to masterpage dosen't display propertily [05]
Build Number: 2.2.0.v20070131-1050 Description: As the screenshot, insert a grid (3*3) in the master page.It can't be display propertily. Step to reproduce: 1. new a report and switch to masterpage 2. insert a grid (3*3) Actual result: Please refer to the screenshot, it's abnormal.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/metadata/ElementDefn.java
/**
	 * Checks the xml name for this element. Check the xml name is not empty and
	 * unique.
	 * 
	 * @throws MetaDataException
	 *             if the xml name of this element is not defined or not unique
	 */
	private void checkXmlName( ) throws MetaDataException
	{
		if ( StringUtil.isBlank( xmlName ) )
			throw new MetaDataException( new String[]{name},
					MetaDataException.DESIGN_EXCEPTION_MISSING_XML_NAME );
		
	}
	/**
	 * Check whether the java class specify a correct class which is defined for
	 * this element definition.
	 * 
	 * @throws MetaDataException
	 *             if there is loading error or instantiating error.
	 */
	private void checkJavaClass( ) throws MetaDataException
	{
		if ( StringUtil.isBlank( javaClass ) )
		{
			throw new MetaDataException( new String[]{name},
					MetaDataException.DESIGN_EXCEPTION_MISSING_JAVA_CLASS );
		}
		try
		{