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SemaPhoreDemo double acquire fix

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tryAcquire() already acquires a permit, if one is available (no need to call acquire() after it)
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IgorNB 2019-10-02 12:52:46 +03:00 committed by GitHub
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core-java-modules/core-java-concurrency-basic/src/main/java/com/baeldung/concurrent/semaphore/SemaPhoreDemo.java
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@ -12,7 +12,6 @@ public class SemaPhoreDemo {
System.out.println("Number of threads waiting to acquire: " + semaphore.getQueueLength()); System.out.println("Number of threads waiting to acquire: " + semaphore.getQueueLength());
if (semaphore.tryAcquire()) { if (semaphore.tryAcquire()) {
semaphore.acquire();
// perform some critical operations // perform some critical operations
semaphore.release(); semaphore.release();
} }