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https://issues.apache.org/jira/browse/GEODE-8217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17145830#comment-17145830
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ASF GitHub Bot commented on GEODE-8217:
---------------------------------------
pivotal-jbarrett merged pull request #5256:
URL: https://github.com/apache/geode/pull/5256
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> Geode session replication could leak internal serialized bytes during
> HttpSessionAttributeListener invocation even when preferDeserializedForm is
> set to true
> -------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: GEODE-8217
> URL: https://issues.apache.org/jira/browse/GEODE-8217
> Project: Geode
> Issue Type: Bug
> Components: http session
> Reporter: Eric Shu
> Assignee: Eric Shu
> Priority: Major
> Labels: caching-applications
>
> When preferDeserializedForm is set to true (default value), session object
> should not contain serialized byte in the cache. However, the following
> exception shows that product leaks the serialized bytes.
> {noformat}
> Jun 02, 2020 3:31:58 PM org.apache.catalina.session.StandardSession
> setAttribute
> SEVERE: Session attribute event listener threw exception
> java.lang.ClassCastException: [B cannot be cast to java.lang.String
> at
> org.apache.geode.modules.session.AccessAttributeValueListener.attributeReplaced(AccessAttributeValueListener.java:34)
> at
> org.apache.catalina.session.StandardSession.setAttribute(StandardSession.java:1482)
> at
> org.apache.geode.modules.session.catalina.DeltaSession.setAttribute(DeltaSession.java:262)
> at
> org.apache.catalina.session.StandardSession.setAttribute(StandardSession.java:1385)
> at
> org.apache.catalina.session.StandardSessionFacade.setAttribute(StandardSessionFacade.java:137)
> at
> org.apache.geode.modules.session.catalina.DeltaSessionFacade.setAttribute(DeltaSessionFacade.java:49)
> at
> org.apache.geode.modules.session.CommandServlet.doGet(CommandServlet.java:64)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
> at
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
> at
> org.apache.geode.modules.session.catalina.CommitSessionValve.invoke(CommitSessionValve.java:47)
> at
> org.apache.geode.modules.session.catalina.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:45)
> at
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:543)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
> at
> org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:678)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
> at
> org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:609)
> at
> org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
> at
> org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:810)
> at
> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1623)
> at
> org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at
> org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
> Please note if preferDeserializedForm is set to false, this issue could still
> exist, unless HttpSessionBindingEvent.getValue() is not being accessed by the
> application. Otherwise, user should set preferDeserializedForm to true to
> avoid this issue.
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