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import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
class ReentrantLockExample {
private final Lock lock = new ReentrantLock();
public void foo() {
lock.lock();
try {
// ...
bar();
} finally {
lock.unlock();
}
}
public void bar() {
lock.lock();
try {
// ...
} finally {
lock.unlock();
}
}
}
public class Main {
public static void main(String args[]) throws Exception {
new ReentrantLockExample().foo();
}
}
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