yabola commented on PR #37779:
URL: https://github.com/apache/spark/pull/37779#issuecomment-1252167206
object TestExceptionHandler {
val threadFactory = new ThreadFactoryBuilder().setDaemon(true).build()
def main(args: Array[String]): Unit = {
val service = Executors.newSingleThreadExecutor(threadFactory)
val runLoop = new Runnable() {
override def run(): Unit = receiveLoop()
}
service.execute(runLoop)
Thread.sleep(2 * 1000)
}
private def receiveLoop() {
try {
Executors.newSingleThreadExecutor(threadFactory).execute(new
MessageLoop)
} catch {
case t: Throwable => {
println("receiveLoop catch the Exception")
}
}
}
class MessageLoop extends Runnable {
Thread.setDefaultUncaughtExceptionHandler(new MyExceptionHandler)
/**
* This Exception will not be caught by MyExceptionHandler. It will be
caught by receiveLoop
*/
if (1 == 1) {
throw new UnsatisfiedLinkError("My Exception error, will be caught by
receiveLoop")
}
override def run(): Unit = {
println("MessageLoop run method.... ")
/**
* This Exception will be caught by MyExceptionHandler
* (The premise is that the above Exception code needs to be commented
out)
*/
if (1 == 1) {
throw new UnsatisfiedLinkError("My Exception error, will be caught
by MyExceptionHandler !")
}
}
}
class MyExceptionHandler extends Thread.UncaughtExceptionHandler {
override def uncaughtException(t: Thread, e: Throwable): Unit = {
println("MyExceptionHandler catch the Exception... ")
}
}
}
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