-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hrishikesh,
On 2/5/16 6:57 PM, Hrishikesh Gadre wrote: > We are getting NoClassDefFoundErrors during Tomcat graceful > shutdown process (i.e. using "catalina.sh stop" command). We are > using Tomcat with version 6.0.44. Note that this error can not be > reproduced consistently. I found following article on the > stackoverflow.com which suggests class loader related problems > during execution of JVM shutdown hook. But in this case, the error > is raised during the execution of ServletFilter::destroy(...) > method. So I am not sure if article is relevant. This kind of thing usually happens because Tomcat marks the WebappClassLoader as "shutting down" and it won't load any new classes. So, if your shutdown code ends up requiring new classes, it could fail. Is this reproducible? If possible, can you write a ServletContextListener that will simply load the class in question (com.google.common.cache.RemovalCause) and do nothing else? If that solves the problem, then the root issue is what I described above (and may be replaced by a series of other classes for the same reason; just load them all as a test to see if this is what's happening. ) It's not a great solution, but it might fix the problem and allow your application to shutdown (actually) gracefully. - -chris -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAla1cp4ACgkQ9CaO5/Lv0PB7EACfQvNwIHoHT89yeSKgP4+Fff4n gYUAoLLgQkISwi0zueBXPT2cBXenYBRt =yGJb -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
