static <I, O> CipherExecutor<I, O> getInstance() {
        if (INSTANCE == null) {
            synchronized (NoOpCipherExecutor.class) {
                if (INSTANCE == null) {
                    INSTANCE = new NoOpCipherExecutor<>();
                }
            }
        }
        return INSTANCE;
    }
static < I , O > CipherExecutor < I , O > getInstance ( ) { if ( INSTANCE == null ) { synchronized ( NoOpCipherExecutor . class ) { if ( INSTANCE == null ) { INSTANCE = new NoOpCipherExecutor < > ( ) ; } } } return INSTANCE ; }
Gets instance.

@return the instance