If the main class throws an exception,When RestartLauncher run it will throw a InvocationTargetException,So I'm going to ignore it. Fixes #26894
Comment From: pivotal-cla
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Comment From: wilkinsona
Thanks for the proposal. Unfortunately, ignoring the exception isn't the right thing to do. The intention is that a restart that fails due to an application context refresh failure will be retried once the user has made a change to the application. This retry is triggered by FileWatchingFailureHandler.handle(Throwable). If the InvocationTargetException is ignored entirely, an application using Devtools won't recover from a restart failure caused by an application context refresh failure and the JVM will exit instead.