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'This is very likely to create a memory leak' Severe Error Messages In Datanomictomcat-stderr.YYYY-MM-DD.log (Doc ID 2182763.1)

Last updated on SEPTEMBER 04, 2018

Applies to:

Oracle Watchlist Screening - Version 11.1.1.7.3 to 11.1.1.7.3 [Release 11]
Oracle Enterprise Data Quality - Version 11.1.1.7.4 to 11.1.1.7.4 [Release 11]
Information in this document applies to any platform.

Symptoms

In an environment with EDQ/OWS deployed to Tomcat 6.0, when the scheduled stop and start of the application service is performed, this error message appears in datanomictomcat-stderr.[YYYY-MM-DD].log :


ERROR
-----------------------
Sep 12, 2016 5:13:20 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [/edq] registered the JDBC driver [oracle.jdbc.OracleDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
(...)
SEVERE: The web application [/edq] appears to have started a thread named [ActiveMQ Task-12] but has failed to stop it. This is very likely to create a memory leak.
Sep 12, 2016 5:13:20 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/edq] appears to have started a thread named [ActiveMQ Task-13] but has failed to stop it. This is very likely to create a memory leak.
Sep 12, 2016 5:13:20 AM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
SEVERE: The web application [/edq] created a ThreadLocal with key of type [com.sun.xml.bind.v2.ClassFactory$1] (value [com.sun.xml.bind.v2.ClassFactory$1@9520758]) and a value of type [java.util.WeakHashMap] (value [{class javax.xml.bind.annotation.W3CDomHandler=public javax.xml.bind.annotation.W3CDomHandler()}]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.

Cause

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In this Document
Symptoms
Cause
Solution


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