https://bz.apache.org/bugzilla/show_bug.cgi?id=64366
--- Comment #4 from Mark Thomas <ma...@apache.org> --- When I try this on both Tomcat 10.0.x and 9.0.x I get a variation of the following: 21-Apr-2020 17:20:36.818 WARNING [Thread-4] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [tomcat-bugs] appears to have started a thread named [Thread-5] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: java.lang.Object.wait(Native Method) org.apache.tomcat.Bug64366$NotStoppedService.run(Bug64366.java:50) java.lang.Thread.run(Thread.java:748) That looks to be a reasonable error message for the circumstances. I am unable to reproduce the NPE in the description above. Are there other configuration changes to make to a clean Tomcat install to trigger this error. I note you are using systemctl. Are you using a package provided by your distribution? If so, so you see the same error with a Tomcat installation obtained directly from the ASF? -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org