spring-boot-devtools debug SilentExitException：springboot热部署debug模式进入SilentExitException

/** Copyright 2012-2019 the original author or authors.** Licensed under the Apache License, Version 2.0 (the "License");* you may not use this file except in compliance with the License.* You may obtain a copy of the License at**      https://www.apache.org/licenses/LICENSE-2.0** Unless required by applicable law or agreed to in writing, software* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.* See the License for the specific language governing permissions and* limitations under the License.*/package org.springframework.boot.devtools.restart;import java.lang.Thread.UncaughtExceptionHandler;
import java.util.Arrays;/*** {@link UncaughtExceptionHandler} decorator that allows a thread to exit silently.** @author Phillip Webb* @author Andy Wilkinson*/
class SilentExitExceptionHandler implements UncaughtExceptionHandler {private final UncaughtExceptionHandler delegate;SilentExitExceptionHandler(UncaughtExceptionHandler delegate) {this.delegate = delegate;}@Overridepublic void uncaughtException(Thread thread, Throwable exception) {if (exception instanceof SilentExitException) {if (isJvmExiting(thread)) {preventNonZeroExitCode();}return;}if (this.delegate != null) {this.delegate.uncaughtException(thread, exception);}}private boolean isJvmExiting(Thread exceptionThread) {for (Thread thread : getAllThreads()) {if (thread != exceptionThread && thread.isAlive() && !thread.isDaemon()) {return false;}}return true;}protected Thread[] getAllThreads() {ThreadGroup rootThreadGroup = getRootThreadGroup();Thread[] threads = new Thread[32];int count = rootThreadGroup.enumerate(threads);while (count == threads.length) {threads = new Thread[threads.length * 2];count = rootThreadGroup.enumerate(threads);}return Arrays.copyOf(threads, count);}private ThreadGroup getRootThreadGroup() {ThreadGroup candidate = Thread.currentThread().getThreadGroup();while (candidate.getParent() != null) {candidate = candidate.getParent();}return candidate;}protected void preventNonZeroExitCode() {System.exit(0);}static void setup(Thread thread) {UncaughtExceptionHandler handler = thread.getUncaughtExceptionHandler();if (!(handler instanceof SilentExitExceptionHandler)) {handler = new SilentExitExceptionHandler(handler);thread.setUncaughtExceptionHandler(handler);}}static void exitCurrentThread() {throw new SilentExitException();}private static class SilentExitException extends RuntimeException {}}

=打开eclipse把下面的√去掉即可=