@FunctionalInterface public static interface Thread.UncaughtExceptionHandler
Threadabruptly terminates due to an uncaught exception.
When a thread is about to terminate due to an uncaught exception
the Java Virtual Machine will query the thread for its
Thread.getUncaughtExceptionHandler() and will invoke the handler's
uncaughtException method, passing the thread and the
exception as arguments.
If a thread has not had its
explicitly set, then its
ThreadGroup object acts as its
UncaughtExceptionHandler. If the
special requirements for dealing with the exception, it can forward
the invocation to the default uncaught exception handler.