public static void assertPropertyIdentifiers( Collection<String> properties) throws IllegalArgumentException
    {
    if( properties != null)
      {
      for( String property : properties)
        {
        assertIdentifier( property);
        }
      }
    }
public static void assertPropertyIdentifiers ( Collection < String > properties ) throws IllegalArgumentException { if ( properties != null ) { for ( String property : properties ) { assertIdentifier ( property ) ; } } }
Throws an exception if any member of the given set of properties is not a valid identifier.