[jira] [Comment Edited] (CXF-5492) ThreadLoad org.apache.cxf.BusFactory.BusHolder leak in Tomcat

["Alessandro Canevese (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CXF-5492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14358983#comment-14358983 ] 

Alessandro Canevese edited comment on CXF-5492 at 3/13/15 8:46 AM:
-------------------------------------------------------------------

I've moved my comment to a separate issue (regarding JaxWs runtime): https://issues.apache.org/jira/browse/CXF-6298


was (Author: coenedens):
I'm getting a similar problem with release 3.0.4 when undeploying a tomcat application with a Spring jaxws generated bean.
To see if it's Spring fault, I've got rid of the jaxws bean and I've put directly in a method the following code:

   ...
    JaxWsDynamicClientFactory dcf = JaxWsDynamicClientFactory.newInstance();
    Client client = dcf.createClient(serviceUrl + "?wsdl");
    Object result = null;
    try
    {
      Object[] callResult = client.invoke(methodName, parameter);
      result = callResult[0];
    }
    catch (Exception ex)
    {
      log.error(ex);
    }
    ...use of result (without storing it anywhere)...
   <end of method>

When I undeploy the webapp I get a couple of the following:

mar 12, 2015 5:46:05 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
Grave: The web application [/soci-operativi] created a ThreadLocal with key of type [com.sun.xml.bind.v2.ClassFactory$1] (value [com.sun.xml.bind.v2.ClassFactory$1@2379cbe3]) and a value of type [java.util.WeakHashMap] (value [{class it.cai.auth.ws.core.service.UserGroup=java.lang.ref.WeakReference@1138b647, class it.cai.auth.ws.core.service.GetUserDataResponse=java.lang.ref.WeakReference@2246f826, class java.util.ArrayList=java.lang.ref.WeakReference@614d985e, class it.cai.auth.ws.core.service.User=java.lang.ref.WeakReference@2d4e753a, class it.cai.auth.ws.core.service.Authority=java.lang.ref.WeakReference@79f24a12}]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
mar 12, 2015 5:46:05 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
Grave: The web application [/soci-operativi] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@11dd224a]) and a value of type [org.apache.cxf.BusFactory.BusHolder] (value [org.apache.cxf.BusFactory$BusHolder@4cf6316f]) 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.

where, say, it.cai.auth.ws.core.service.User is a CXF dynamically created class.


> ThreadLoad org.apache.cxf.BusFactory.BusHolder leak in Tomcat
> -------------------------------------------------------------
>
>                 Key: CXF-5492
>                 URL: https://issues.apache.org/jira/browse/CXF-5492
>             Project: CXF
>          Issue Type: Bug
>          Components: Bus
>    Affects Versions: 2.7.6, 2.7.8, 2.7.14
>         Environment: oracle jdk 7, windows7 x64
>            Reporter: Alex O'Ree
>
> Upon web application redeploy (that calls a web service), I've been getting a number of log warnings when either Tomcat shutdown's down or when the web app is redeployed
> Jan 12, 2014 10:12:28 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
> SEVERE: A web application created a ThreadLocal with key of type [null] (value [com.sun.xml.bind.v2.ClassFactory$1@fb0bc
> 0e]) and a value of type [java.util.WeakHashMap] (value [{class org.uddi.api_v3.BusinessList=java.lang.ref.WeakReference
> @1c0a432e, class org.uddi.api_v3.BusinessInfo=java.lang.ref.WeakReference@65c08f63, class org.uddi.api_v3.BusinessInfos=
> java.lang.ref.WeakReference@4505e0c5, class org.uddi.api_v3.Description=java.lang.ref.WeakReference@4e7c8ea, class org.u
> ddi.api_v3.Name=java.lang.ref.WeakReference@d377d2a, class org.uddi.api_v3.ServiceInfo=java.lang.ref.WeakReference@35fa5
> 72d, class java.util.ArrayList=java.lang.ref.WeakReference@4671670a, class javax.xml.bind.annotation.W3CDomHandler=java.
> lang.ref.WeakReference@3f23e5a7, class org.uddi.api_v3.ListDescription=java.lang.ref.WeakReference@4dba5753, class org.u
> ddi.api_v3.ServiceInfos=java.lang.ref.WeakReference@4bb3203}]) but failed to remove it when the web application was stop
> ped. To prevent a memory leak, the ThreadLocal has been forcibly removed.
> Jan 12, 2014 10:12:28 PM org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
> SEVERE: A web application created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@1
> dd06562]) and a value of type [org.apache.cxf.BusFactory.BusHolder] (value [org.apache.cxf.BusFactory$BusHolder@5cb01438
> ]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forc
> ibly removed.



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