xjtushilei opened a new issue, #12419:
URL: https://github.com/apache/lucene/issues/12419
### Description
I use lucene 9.6 in multi-threading, and then found that if the three
classes `IndexWriter`, `SegmentReader`, and `ConcurrentMergeScheduler` are used
in a multi-threaded environment, the thread will be stuck.
The reason is that the `TestSecrets.java` class caused static initialization
deadlock.
This bug has a great impact on me, I hope it can be fixed as soon as
possible.
The following code can be reproduced stably.
```
import org.apache.lucene.index.ConcurrentMergeScheduler;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.store.ByteBuffersDirectory;
import java.io.IOException;
import java.util.concurrent.CountDownLatch;
public class Test {
public static void main(String[] args) throws InterruptedException {
CountDownLatch startLatch = new CountDownLatch(1);
Thread t1 = new Thread(() -> {
try {
startLatch.await();
new IndexWriter(new ByteBuffersDirectory(), new
IndexWriterConfig());
} catch (IOException | InterruptedException e) {
throw new RuntimeException(e);
}
});
Thread t2 = new Thread(() -> {
try {
startLatch.await();
new ConcurrentMergeScheduler();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
});
t1.start();
t2.start();
System.out.println("Start!");
startLatch.countDown();
t2.join();
t1.join();
System.out.println("Done");
}
}
```
### Version and environment details
- Lucene version: 9.6
- Java version: 11, and the java version in my MacBookPro is "11.0.16.1"
2022-08-18 LTS
- OS
- mac os 11.6.1
- centos 7.x
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