You will want to resend this message to us...@tomcat.apache.org. See this web page for complete instructions:
http://tomcat.apache.org/lists.html#tomcat-users On Mon, Jun 1, 2015 at 9:30 AM, <sam.mo...@wipro.com> wrote: > Hello team, > We are currently using Apache Tomcat 7.0.50 deployed with multiple web > application instances and where we are trying to fix some of the Bugs in the > catalina.out which appears severe. Two of those are as below. > > > * org.apache.catalina.loader.WebappClassLoader > checkThreadLocalMapForLeaks SEVERE: The web application [/app_name] created a > ThreadLocal with key of type [class name] (value [class name]) and a value of > type [classname] (value [classname@4b188d84]) but failed to remove it when > the web application was stopped. Threads are going to be renewed over time to > try and avoid a probable memory leak. > > > * org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc > SEVERE: The web application [/app_name] registered the JDBC driver > [oracle.jdbc.driver.OracleDriver] but failed to unregister it when the web > application was stopped. To prevent a memory leak, the JDBC Driver has been > forcibly unregistered. > > We have really seen many solutions to these errors above in various > communities, blogs and FAQ sessions, but are trying to find > > > 1. Why are these happening to be preceise? > > 2. Are these considered severe and needs to be fixed , for sure? > > 3. How can we resolve , or work around these with some Apache Tomcat > configurations? We have tried many in context.xml, web.xml, server.xml etc, > but couldn't succeed. > > 4. In the worst case, if at any case these can be hidden from > catalina.out, how can we do that? > > Kindly help us here. Any help would be appreciated and accepted. Thanks in > advance. > > Regards, > Sam Mohan. > The information contained in this electronic message and any attachments to > this message are intended for the exclusive use of the addressee(s) and may > contain proprietary, confidential or privileged information. If you are not > the intended recipient, you should not disseminate, distribute or copy this > e-mail. Please notify the sender immediately and destroy all copies of this > message and any attachments. WARNING: Computer viruses can be transmitted via > email. The recipient should check this email and any attachments for the > presence of viruses. The company accepts no liability for any damage caused > by any virus transmitted by this email. www.wipro.com
