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
manageId( innerElement, isAdd );
			}
		}
	}
	/**
	 * Gets the location information of the module.
	 * 
	 * @return the location information of the module
	 */
	public String getLocation( )
	{
		assert systemId != null;
		if ( fileName == null )
			return systemId.toString( );
		return systemId + StringUtil.extractFileNameWithSuffix( fileName );
	}
	/**
	 * @param namespace
	 * @return the included library structure with the given namespace
	 */
	public IncludedLibrary findIncludedLibrary( String namespace )
	{
		List libs = getIncludedLibraries( );
		IncludedLibrary includedItem = null;
		for ( int i = 0; i < libs.size( ); i++ )
		{
			IncludedLibrary incluedLib = (IncludedLibrary) libs.get( i );
			if ( incluedLib.getNamespace( ).equalsIgnoreCase( namespace ) )
			{
				includedItem = incluedLib;