title: Memory leak exception
body: <p>can anyone help me with this exception :</p>
  
  <pre><code>Jul 23, 2012 11:00:57 AM org.apache.catalina.loader.WebappClassLoader loadClass
  INFO: Illegal access: this web application instance has been stopped already.  Could not load com.mchange.v2.sql.SqlUtils.  The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
  java.lang.IllegalStateException
      at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1597)
      at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
      at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:531)
      at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)
      at org.hibernate.connection.C3P0ConnectionProvider.getConnection(C3P0ConnectionProvider.java:78)
      at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
      at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
      at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142)
      at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:85)
      at net.customware.gwt.dispatch.server.AbstractDispatch.doExecute(AbstractDispatch.java:81)
      at net.customware.gwt.dispatch.server.AbstractDispatch.execute(AbstractDispatch.java:68)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:601)
      at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
      at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
      at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
      at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
      at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:216)
      at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:141)
      at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:93)
      at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:63)
      at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:122)
      at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:110)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
      at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
      at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
      at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
      at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
      at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
      at java.lang.Thread.run(Thread.java:722)
  </code></pre>
  
  <p>And also provide the possible solution for it..?</p>
  
  <p>Thanks in advance...</p>