Martin,
init() is called once and only once during the "lifetime" of a servlet. But
servlets have many lives. The lifetime of a servlet begins when it's instantiated and
ends when its garbage callected by the servlet runner (either due to disuse, or for
dynamic servlet reloading, or because Jrun's restarted, or many other reasons).
When the servlet runner goes to re-initialize the servlet, the servlet's init method
is called. It appears, however, that it's also attempting to reload all the
supporting classes from WEB-INF/lib at the same time, and something isn't ready.
Has anyone else had success getting log4j to work with Jrun? This isn't making a
lot of sense, unless I have something configured wrong.
Whit
----- Original Message -----
From: Martin Gainty
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Saturday, July 13, 2002 3:26 PM
Subject: Re: A "org.apache.log4j.DailyRollingFileAppender" object is not assignable
to...
Whit:
so init() is called once and only once correct???
if you delete the class and recreate it.. how does JRun know this class should be
initialised again??
Sounds like JRun doesnt have capability to 'reinitialise itself'.
Correct??
Martin Gainty
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_______________________________________________
>From: "Whitney White"
>Reply-To: "Log4J Users List"
>To: [EMAIL PROTECTED]
>Subject: Re: A "org.apache.log4j.DailyRollingFileAppender" object is not assignable
to...
>Date: Fri, 12 Jul 2002 19:24:41 -0400
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>Ceki,
> Thanks for your response; I've done some more digging and
>discovered the following behavior.
>
>
> As I said before when I first start jrun, everything is perfectly
>fine; if I touch then my servlet class, causing Jrun to dynamically
>destroy it and reload it, this causes log4j to report the following:
>
>
>log4j:ERROR A "org.apache.log4j.DailyRollingFileAppender" object is
>not assignable to a "org.apache.log4j.Appender" variable.
>log4j:ERROR Could not instantiate appender named "A1".
>log4j:ERROR A "org.apache.log4j.net.SMTPAppender" object is not
>assignable to a "org.apache.log4j.Appender" variable.
>log4j:ERROR Could not instantiate appender named "ML".
>log4j:WARN No appenders could be found for logger
>(HelloSso2Servlet).
>log4j:WARN Please initialize the log4j system properly.
>
>I indicated this before. Now, perhaps you can explain the
>following:
>
>If I then programmatically cause the servlet to call its own init()
>method later, after it has already been instantiated (when log4j
>failed to initialize), then everything returns to normal and log4j
>correctly initializes.
>
>Why does that happen? It's as if log4j cannot initialize when jrun
>first dynamically reloads the servlet-- but later, after the servlet
>has been instantiated, the PropertyConfigurator is successful.
>
>Is there some sort of race condition? How can I get around this?
>
>Thanks again,
>Whit
>
>
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