e097. determining if the current thread is holding a synchronized lock.txt

这里面包含了一百多个JAVA源文件

A thread can determine if it is holding the synchronized lock of a particular object. 
    public synchronized void myMethod() {
        boolean hasLock = false;
        Object o = new Object();
    
        // Determine if current thread has lock for o
        hasLock = Thread.holdsLock(o);     // false
        synchronized (o) {
            hasLock = Thread.holdsLock(o); // true
        }
    
        // Check if current thread has lock for current object
        hasLock = Thread.holdsLock(this);  // true
    }