Spring Should InstantiationModelAwarePointcutAdvisorImpl#getAdvice be used to double-check lock?

Affects: main

        @Nullable
    private Advice instantiatedAdvice;

    @Override
    public synchronized Advice getAdvice() {
        if (this.instantiatedAdvice == null) {
            this.instantiatedAdvice = instantiateAdvice(this.declaredPointcut);
        }
        return this.instantiatedAdvice;
    }

I think getAdvice() method can be used to double-check lock, please give me more advice, thanks.

Comment From: snicoll

Thanks for the suggestion but the method is synchronized, so there's no need for a double-check lock.