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kawa and apache tomcat
- From: Damien MATTEI <Damien dot Mattei at unice dot fr>
- To: kawa at sourceware dot org
- Date: Fri, 15 Jan 2016 11:45:23 +0100
- Subject: kawa and apache tomcat
- Authentication-results: sourceware.org; auth=none
hi,
i 'm developping and testing a servlet application in tomcat 8 using some kawa code byte-compiled for java, so there is pure java code and kawa code hosted on the apache tomcat web server,
all works fine but i noticed this when stopping the application (named Sidonie) in tomcat manager, tomcat complains about this in the log files:
15-Jan-2016 11:08:49.115 SEVERE [http-nio-8080-exec-12] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [Sidonie] created a ThreadLocal with key of type [gnu.mapping.Environment.InheritedLocal] (value [gnu.mapping.Environment$InheritedLocal@3dc806b8]) and a value of type [gnu.mapping.InheritingEnvironment] (value [#<environment http-nio-8080-exec-19>]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
15-Jan-2016 11:08:49.116 SEVERE [http-nio-8080-exec-12] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [Sidonie] created a ThreadLocal with key of type [java.lang.InheritableThreadLocal] (value [java.lang.InheritableThreadLocal@7927031f]) and a value of type [kawa.standard.Scheme] (value [kawa.standard.Scheme@3070d094]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
15-Jan-2016 11:08:49.116 SEVERE [http-nio-8080-exec-12] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [Sidonie] created a ThreadLocal with key of type [gnu.mapping.ThreadLocation.ThreadLocalWithDefault] (value [gnu.mapping.ThreadLocation$ThreadLocalWithDefault@599f5a94]) and a value of type [gnu.math.IntNum] (value [10]) 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.
15-Jan-2016 11:08:49.116 SEVERE [http-nio-8080-exec-12] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [Sidonie] created a ThreadLocal with key of type [gnu.mapping.ThreadLocation.ThreadLocalWithDefault] (value [gnu.mapping.ThreadLocation$ThreadLocalWithDefault@6b51425b]) and a value of type [gnu.kawa.io.BinaryOutPort] (value [gnu.kawa.io.BinaryOutPort@4cf02060]) 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.
this message appear the same number of times as the kawa code is called ,for example if i reload the web page which call again the kawa code i will have two instance of this message in log ...
for info my kawa code are called after a Scheme.registerEnvironment();
tomcat seems cannot be able to free some kawa ressource, perheaps i should free them by myself in the code but scheme and java have their own garbage collector and normally deallocate ressource when no more in use, i use files with diffrent method too, when i do an
open ,i close the file at end but not always when using some method such as gnu.list.blob...
any ideas?
regards,
damien
--
Damien.Mattei@unice.fr, Damien.Mattei@oca.eu, UNS / OCA / CNRS