Description

We are seeing infrequent deadlocks using the GHRepository::getCommit from a threadpool.

thread dump snippet

 #17072 daemon prio=5 os_prio=0 cpu=943046.99ms elapsed=8709.52s tid=0x00007f3ca82a5fb0 nid=0x8de9 runnable [0x00007f3903353000] java.lang.Thread.State: RUNNABLE at java.util.WeakHashMap.get(java.base@11.0.5/WeakHashMap.java:404) at org.kohsuke.github.GHRepository.getCommit(GHRepository.java:1627) at

WeakHashMap is not threadsafe, and using Collections.synchronisedMap is the recommended way of making it so if this client should be usable concurrently?

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