Bug 155509 ModuleHandle findResource method does not support .properties files
There is no fileType for .properties files in IResourceLocator
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
element, propDefn );
		return refValue.getElement( );
	}
	/**
	 * Resolves element with the given element name and name space.
	 * 
	 * @param elementName
	 *            name of the element
	 * @param nameSpace
	 *            name space
	 * @return the resolved element if the name can be resolved, otherwise,
	 *         return null.
	 */
	private DesignElement resolveNativeElement( String elementName,
			int nameSpace )
	{
		NameSpace namespace = nameSpaces[nameSpace];
		return namespace.getElement( elementName );
	}
	/**
	 * Sets the exceltion list into this module.
	 * 
	 * @param allExceptions
	 *            exception list to set
	 */
	protected void setAllExceptions( List allExceptions )
	{
		this.allExceptions = allExceptions;
	}
	/**