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POWhy I am getting memory leak exception after c3p0 configuration?
 

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  1. POWhy I am getting memory leak exception after c3p0 configuration?
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    <p>I am using java , GWT, and hibernate with mysql. To avoide too many connection exception I am configuring the c3p0 in my application, but after configuration when I deploy my application to tomcat and run application so after 5 to 10 request application gets crashed and in tomcat logs I am getting following exception repeatedly:</p> <pre><code>org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks SEVERE: The web application [/war] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@1d2aa39]) and a value of type [com.google.inject.servlet.ServletDefinition$2] (value [com.google.inject.servlet.ServletDefinition$2@ef3675]) 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. </code></pre> <p>My c3p0 configuration is as follows:</p> <pre><code>&lt;property name="connection.provider_class"&gt; org.hibernate.connection.C3P0ConnectionProvider&lt;/property&gt; &lt;property name="hibernate.connection.autoReconnect"&gt;true&lt;/property&gt; &lt;property name="hibernate.c3p0.acquire_increment"&gt;3&lt;/property&gt; &lt;property name="hibernate.c3p0.idle_test_period"&gt;5&lt;/property&gt; &lt;property name="hibernate.c3p0.max_size"&gt;50&lt;/property&gt; &lt;property name="hibernate.c3p0.max_statements"&gt;0&lt;/property&gt; &lt;property name="hibernate.c3p0.min_size"&gt;0&lt;/property&gt; &lt;property name="hibernate.c3p0.timeout"&gt;5&lt;/property&gt; &lt;property name="hibernate.c3p0.idleConnectionTestPeriod"&gt;5&lt;/property&gt; </code></pre> <p>help me if anyone knows the solution... thanks in advance..</p>
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    1. USmilind_db
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      1. POWhy I am getting memory leak exception after c3p0 configuration?
      1. USMahesh More
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    1. COPlease post, what does it mean "application gets crashed"? As Marko has marked, that SEVERE warning by Tomcat is not a cause
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      1. POWhy I am getting memory leak exception after c3p0 configuration?
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    2. COapplication crashed in the sense after this exception, any database request is not getting invoked...it repeatedly trows memory leak exception.
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      1. POWhy I am getting memory leak exception after c3p0 configuration?
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    3. COSorry guy, you are not specific. First of all in your question there is no exception. Just SEVERE log message. Secondly, "database request is not getting invoked" is not an exception in java sense of the world. Thirdly, there is no such thing in java as "memory leak exception". If you ask for help, please provide exact information.
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