WebappClassLoader appears to ignore LifecyceListeners
It appears that the WebappClassLoader[1], while declaring that it implements Lifecycle[2], actually ignores LifecycleListeners[3]. I have observed that registering a Lifecycle listener with a WebappClassLoader seems to have no effect. When the classloader is stopped, the listener was not called. The source[4] hosted out on java2s.com seems to confirm that listeners are ignored. Why are listeners ignored? If they are going to be ignored, could this at least be documented? Also, perhaps addLifecycleListener[5] should throw an exception to indicate it is not supported. [1] - http://tomcat.apache.org/tomcat-5.5-doc/catalina/docs/api/org/apache/catalina/loader/WebappClassLoader.html [2] - http://tomcat.apache.org/tomcat-5.5-doc/catalina/docs/api/org/apache/catalina/Lifecycle.html [3] - http://tomcat.apache.org/tomcat-5.5-doc/catalina/docs/api/org/apache/catalina/LifecycleListener.html [4] - http://www.java2s.com/Open-Source/Java-Document/Sevlet-Container/tomcat-catalina/org/apache/catalina/loader/WebappClassLoader.java.htm [5] - http://tomcat.apache.org/tomcat-5.5-doc/catalina/docs/api/org/apache/catalina/loader/WebappClassLoader.html#addLifecycleListener(org.apache.catalina.LifecycleListener) Brett Okken | MMF Archive | Software Architect | 816.201.6112 | www.cerner.com | bok...@cerner.com -- CONFIDENTIALITY NOTICE This message and any included attachments are from Cerner Corporation and are intended only for the addressee. The information contained in this message is confidential and may constitute inside or non-public information under international, federal, or state securities laws. Unauthorized forwarding, printing, copying, distribution, or use of such information is strictly prohibited and may be unlawful. If you are not the addressee, please promptly delete this message and notify the sender of the delivery error by e-mail or you may call Cerner's corporate offices in Kansas City, Missouri, U.S.A at (+1) (816)221-1024.
jmx notification of WebModule stopping
I would like to monitor the status of wars/web modules/applications via jmx using notifications. However, it does not seem that any of the possible MBeans send out notifications of shutdown. I have tried the WebModule (*:j2eeType=WebModule,name=//host/app,*), Manager (*:type=Manager,path=/app,host=host), even the WebapClassLoader (*:type=WebappClassLoader,path=/app,host=host), all to no avail. Do any of the MBeans send out notifications, or must I poll to determine if applications are still running? Brett Okken | MMF Archive | Software Architect | 816.201.6112 | www.cerner.com | bok...@cerner.com -- CONFIDENTIALITY NOTICE This message and any included attachments are from Cerner Corporation and are intended only for the addressee. The information contained in this message is confidential and may constitute inside or non-public information under international, federal, or state securities laws. Unauthorized forwarding, printing, copying, distribution, or use of such information is strictly prohibited and may be unlawful. If you are not the addressee, please promptly delete this message and notify the sender of the delivery error by e-mail or you may call Cerner's corporate offices in Kansas City, Missouri, U.S.A at (+1) (816)221-1024.
