complie stuck

[frg01]

Compilation is in progress, and the thread pool created after tests is stuck. I have been stuck on the bold part and cannot continue. Could you please tell me the reason for this?

console output
Tests run: 9, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 4.128 sec
Running com.oltpbenchmark.benchmarks.auctionmark.util.TestItemId
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.001 sec
Running com.oltpbenchmark.benchmarks.auctionmark.util.TestUserId
Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.009 sec
Running com.oltpbenchmark.benchmarks.auctionmark.util.TestUserIdGenerator
Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.041 sec
Running com.oltpbenchmark.benchmarks.auctionmark.TestAuctionMarkLoader
[INFO ] 2024-02-21 09:52:05,815 [main]  com.oltpbenchmark.benchmarks.auctionmark.TestAuctionMarkLoader setUp - starting HSQLDB server for test [testLoadProfilePerClient] on port [9012]
**[INFO ] 2024-02-21 09:52:06,269 [main]  com.oltpbenchmark.util.ThreadUtil runLoaderThreads - Creating a Thread Pool with a size of 50 to run 20 Loader Threads.  0 threads will be queued.**