danny0405 commented on PR #10989:
URL: https://github.com/apache/hudi/pull/10989#issuecomment-2047056747
> Yes, it was exactly this piece of JDK code that made me to come up with
this bug fix
And jdk would finally take care of the cleaning of shutdown hooks:
```java
/* Iterates over all application hooks creating a new thread for each
* to run in. Hooks are run concurrently and this method waits for
* them to finish.
*/
static void runHooks() {
Collection<Thread> threads;
synchronized(ApplicationShutdownHooks.class) {
threads = hooks.keySet();
hooks = null;
}
for (Thread hook : threads) {
hook.start();
}
for (Thread hook : threads) {
while (true) {
try {
hook.join();
break;
} catch (InterruptedException ignored) {
}
}
}
}
```
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