Memory Leak?

From: Andrew Willerding (awillerdin..allistacti.com)
Date: Tue Jul 20 2010 - 13:28:25 UTC

  • Next message: Andrus Adamchik: "Re: Memory Leak?"

    When starting my web app under Tomcat 6.0.26, I get the following logged..

    (The application otherwise appears to be working fine so I'm just
    wondering if I should be concerned or how to prevent this error from
    happening upon startup)

    20-Jul-2010 9:16:40 AM org.apache.catalina.loader.WebappClassLoader
    clearReferencesJdbc
    SEVERE: A web application registered the JBDC driver
    [com.ibm.db2.jcc.DB2Driver] but failed to unregister it when the web
    application was stopped. To prevent a memory leak, the JDBC Driver has
    been forcibly unregistered.
    20-Jul-2010 9:16:40 AM org.apache.catalina.loader.WebappClassLoader
    clearReferencesThreads
    SEVERE: A web application appears to have started a thread named
    [cayenne-edt-597457953-0] but has failed to stop it. This is very likely
    to create a memory leak.
    20-Jul-2010 9:16:40 AM org.apache.catalina.loader.WebappClassLoader
    clearReferencesThreads
    SEVERE: A web application appears to have started a thread named
    [cayenne-edt-597457953-1] but has failed to stop it. This is very likely
    to create a memory leak.
    20-Jul-2010 9:16:40 AM org.apache.catalina.loader.WebappClassLoader
    clearReferencesThreads
    SEVERE: A web application appears to have started a thread named
    [cayenne-edt-597457953-2] but has failed to stop it. This is very likely
    to create a memory leak.
    20-Jul-2010 9:16:40 AM org.apache.catalina.loader.WebappClassLoader
    clearReferencesThreads
    SEVERE: A web application appears to have started a thread named
    [cayenne-edt-597457953-3] but has failed to stop it. This is very likely
    to create a memory leak.
    20-Jul-2010 9:16:40 AM org.apache.catalina.loader.WebappClassLoader
    clearReferencesThreads
    SEVERE: A web application appears to have started a thread named
    [cayenne-edt-597457953-4] but has failed to stop it. This is very likely
    to create a memory leak.
    20-Jul-2010 9:16:40 AM org.apache.catalina.loader.WebappClassLoader
    clearReferencesThreads
    SEVERE: A web application appears to have started a thread named
    [PoolManagerCleanup-2013151593] but has failed to stop it. This is very
    likely to create a memory leak.
    log4j:WARN No appenders could be found for logger
    (org.apache.cayenne.conf.DefaultConfiguration).
    log4j:WARN Please initialize the log4j system properly.
    log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for
    more info.

    Thanks,

    Andrew

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