Atomic

 原子性

private static final AtomicBoolean BPMCallback_FLAG = new AtomicBoolean(true);

public void ipopInvoiceIssueCallbackToBPM() {
    if (BPMCallback_FLAG.getAndSet(false)) {
        String invoice_serial = "invoice_serial";
        try {
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            BPMCallback_FLAG.getAndSet(true);
        }
    }
}