I don't know what the relationship is between this error and your JSP, but
it looks like your container is trying to serialize the session for some
reason. Apparently you have a session attribute which is a HashMap, and it
doesn't like that because it can't serialize it.
--
Martin Cooper
----- Original Message -----
From: "Matt Raible" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, August 28, 2001 11:30 AM
Subject: java.io.NotSerializableException: java.util.HashMap
> I am getting the following error on a JSP page that I am using struts
taglibs.
> However, I am using Sets and ArrayLists for my <selects> - not a hashmap??
>
> Any ideas?
>
> Thanks,
>
> Matt
>
> [28/Aug/2001 12:29:20:9] error: Exception: SERVLET-IO_exception:
IOException
> occurred
> Exception Stack Trace:
> java.io.NotSerializableException: java.util.HashMap$1
> at
java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:845)
> at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:342)
> at
> java.io.ObjectOutputStream.outputClassFields(ObjectOutputStream.java:1567)
> at
> java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:453)
> at
java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:911)
> at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:342)
> at
>
com.netscape.server.servlet.platformhttp.PlatformNASSession.putMemberValue(U
nknown
> Source)
> at
>
com.netscape.server.servlet.platformhttp.PlatformNASSession.saveSession(Unkn
own
> Source)
> at
>
com.netscape.server.servlet.platformhttp.PlatformHttpServletRequest.saveSess
ion(Unknown
> Source)
> at
> com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unknown
Source)
> at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
> at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
> at com.kivasoft.thread.ThreadBasic.run(Native Method)
> at java.lang.Thread.run(Thread.java:479)
>
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