private static boolean METHOD_1 ( byte [ ] b ) { byte c = 0 ; for ( byte VAR_1 : b ) { c ^= VAR_1 ; } return c == 0 ; } 

private static boolean METHOD_1 ( byte [ ] b , int length ) { byte c = 0 ; for ( int i = 0 ; i < length ; i ++ ) { c ^= b [ i ] ; } return c == 0 ; } 
