public void METHOD_1 ( TYPE_1 target , boolean value ) { if ( value ) VAR_1 . add ( target ) ; else VAR_1 . remove ( target ) ; } 

public void METHOD_1 ( TYPE_1 target , boolean value ) { synchronized ( VAR_1 ) { if ( value ) VAR_1 . add ( target ) ; else VAR_1 . remove ( target ) ; } } 
