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| Code Block | ||
|---|---|---|
| ||
int lock = 0;
private final Integer Lock = lock; // Boxed primitive Lock will be shared
public void doSomething() {
synchronized(Lock) {
// ...
}
}
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...
This noncompliant code example incorrectly uses a ReentrantLock as the lock object.
| Code Block | ||
|---|---|---|
| ||
private final Lock lock = new ReentrantLock();
public void doSomething() {
synchronized(lock) {
// ...
}
}
|
...
Instead of using the intrinsic locks of objects that implement the Lock interface, including ReentrantLock, use the lock() and unlock() methods provided by the Lock interface.
| Code Block | ||
|---|---|---|
| ||
private final Lock lock = new ReentrantLock();
public void doSomething() {
lock.lock();
try {
// ...
} finally {
lock.unlock();
}
}
|
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