Thread Stuck in Java: InterruptedException Swallowed Without Handling

In a multi-threaded Java application, I have a worker thread that repeatedly sleeps in a loop. When another thread interrupts it, the interrupt is ignored, and the worker continues running indefinitely. How can I fix this to allow proper interruption?

Catching InterruptedException without restoring the thread’s interrupt status or breaking out prevents Java’s cooperative cancellation mechanism from working. The thread continues execution as if nothing happened ([turn0search5]turn0search7). Fix: java Copy code try { Thread.sleep(1000); } catch (InterruptedException e) { Thread.currentThread().interrupt(); // restore interrupt flag break; // exit loop or cleanup } Also prefer loops that respect the interrupt flag: java Copy code while (!Thread.currentThread().isInterrupted()) { // work… } This ensures graceful shutdown and proper resource cleanup.