public void METHOD_1 ( ) { <BUG> if ( ( VAR_1 ) == true ) {VAR_1 = false ;BUG> }</BUG></BUG> <BUG> if ( ( VAR_1 ) == false ) {VAR_1 = true ;</BUG> } }
public void METHOD_1 ( ) { VAR_1 = ! ( VAR_1 ) ; } 
