if ( h == null )
if ( checks == null )
	public String[][] getLockChecks( Class<? extends IObject> klass )	{		if ( klass == null ) 			throw new ApiUsageException( "Cannot proceed with null klass." );				Holder h = classNameHolder.get( klass.getName() );				if ( h == null )			throw new ApiUsageException( "Metadata not found for: "					+klass.getName());				return h.getLockChecks( );			}