Various messages are seen in the Tomcat log:
SEVERE: The web application [/introscope-wssdk-consumer] appears to have started a thread named [LifecycleListenerNotifier] but has failed to stop it. This is very likely to create a memory leak.
org.apache.catalina.loader.WebappClassLoaderBase clearReferencesThreads
SEVERE: The web application [/axis2] appears to have started a thread named [pool-3-thread-1] but has failed to stop it. This is very likely to create a memory leak.