public int METHOD_1 ( TYPE_1 VAR_1 , TYPE_1 VAR_2 ) { <BUG> if ( ( VAR_1 . METHOD_2 ( ) ) == ( VAR_2 . METHOD_2 ( ) ) ) {return - 1 ;BUG> }</BUG></BUG> <BUG> else {</BUG> return 0 ; } }
public int METHOD_1 ( TYPE_1 VAR_1 , TYPE_1 VAR_2 ) { return 0 ; } 
