https://bz.apache.org/bugzilla/show_bug.cgi?id=59054
Bug ID: 59054
Summary: CrawlerSessionManagerValve is not serializable, and
throws exception when passing itself as
sessionAttribute
Product: Tomcat 7
Version: 7.0.64
Hardware: All
OS: All
Status: NEW
Severity: critical
Priority: P2
Component: Connectors
Assignee: [email protected]
Reporter: [email protected]
During first request to the application when user agent matches crawler pattern
the execution reaches the point where it tries to store itself in
sessionAttribute (s1.setAttribute(this.getClass().getName(), this)). Since
CrawlerSessionManagerValve does not implement Serializable it throws exception:
java.lang.IllegalArgumentException: setAttribute: Non-serializable attribute
org.apache.catalina.valves.CrawlerSessionManagerValve
at
org.apache.catalina.session.StandardSession.setAttribute(StandardSession.java:1465)
at
org.apache.catalina.session.StandardSession.setAttribute(StandardSession.java:1426)
at
org.apache.catalina.session.StandardSessionFacade.setAttribute(StandardSessionFacade.java:154)
at
org.apache.catalina.valves.CrawlerSessionManagerValve.invoke(CrawlerSessionManagerValve.java:190)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
I was able to fix this bug by modyfing source code to implement Serializable
interface.
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