### Question:
ExceptionUtils { public static boolean isJvmFatalError(Throwable t) { return (t instanceof InternalError) || (t instanceof UnknownError) || (t instanceof ThreadDeath); } private  ExceptionUtils(); static String stringifyException(final Throwable e); static boolean isJvmFatalError(Throwable t); static boolean isJvmFatalOrOutOfMemoryError(Throwable t); static void rethrowIfFatalError(Throwable t); static void rethrowIfFatalErrorOrOOM(Throwable t); static T firstOrSuppressed(T newException, @Nullable T previous); static void rethrow(Throwable t); static void rethrow(Throwable t, String parentMessage); static void rethrowException(Throwable t, String parentMessage); static void rethrowException(Throwable t); static void tryRethrowException(@Nullable Exception e); static void tryRethrowIOException(Throwable t); static void rethrowIOException(Throwable t); static Optional<T> findThrowable(Throwable throwable, Class<T> searchType); static Optional<Throwable> findThrowable(Throwable throwable, Predicate<Throwable> predicate); static Optional<Throwable> findThrowableWithMessage(Throwable throwable, String searchMessage); static Throwable stripExecutionException(Throwable throwable); static Throwable stripCompletionException(Throwable throwable); static Throwable stripException(Throwable throwableToStrip, Class<? extends Throwable> typeToStrip); static void tryDeserializeAndThrow(Throwable throwable, ClassLoader classLoader); static void checkInterrupted(Throwable e); static void suppressExceptions(RunnableWithException action); static final String STRINGIFIED_NULL_EXCEPTION; }### Answer:
@Test public void testJvmFatalError() { assertFalse(ExceptionUtils.isJvmFatalError(new Error())); assertFalse(ExceptionUtils.isJvmFatalError(new LinkageError())); assertTrue(ExceptionUtils.isJvmFatalError(new InternalError())); assertTrue(ExceptionUtils.isJvmFatalError(new UnknownError())); }