Plugins did not expect InvalidPathException to be thrown in file-related methods, so wrap them in IOException to restore behavior (regression in 2.55).
(issue 43531)
Remove links in stack traces to the stacktrace.jenkins-ci.org service that has been shut down.
(issue 42861)
If an exception is thrown while rendering an HTTP response, just log the stack trace on the server side, without trying to send an error page to the client.
(issue 21695)
Prevent NullPointerException when a non-existent default view is specified in Configure System.
(issue 42717)
Deleting jobs with running builds could result in NullPointerException (regression in 2.55).
(issue 43653)