jbvanzuylen opened a new pull request #2770: Java Client - Threads to inherit daemon status from thread creating the client URL: https://github.com/apache/pulsar/pull/2770 ### Motivation Currently all threads started by the Java client are always non-daemon threads. This might be a problem in situations where there is no other way of calling `PulsarClient.close()` than using a shutdown hook when halting the JVM. Shutdown hooks are only executed by the JVM when all non-daemon threads are stopped and currently the non-daemon threads from Pulsar are getting in the way. ### Modifications Threads spawned by the Pulsar client will now inherit the daemon status of the thread creating the client. ### Result If the Pulsar client is started using a non-daemon thread, the threads spawned by Pulsar will also be non-daemon threads.
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