Re: Can't connect to JVM via jconsole, etc. when using VelocityViewServlet

Christopher Schultz <[email protected]> Thu, 13 Mar 2014 17:55:33 -0400

Newsgroups	gmane.comp.jakarta.velocity.user
Message-ID	<[email protected]>

All,

On 3/10/14, 2:15 PM, Christopher Schultz wrote:
> All,
> 
> I've just discovered that I can't connect using jconsole, VisualVM,
> YourKit, etc. when VelocityViewServlet has been enabled. I never noticed
> this before because I haven't been using jconsole very much, and I don't
> think I've tried to profile recently.
> 
> I have a quick summary of what's going on, including a link to a bug
> I've filed against Apache Tomcat (because the problem appears to be
> related to JMX).
> 
> http://markmail.org/thread/4g6ey2a24z6awxu5
> 
> I was able to reduce my entire web application to just
> VelocityViewServlet with no manually-deployed tools, so everything in
> this web application is coming from Velocity or Apache Commons.
> 
> Can anyone confirm that this happens to them, too? Any ideas what might
> be happening? If anyone has any thoughts about this, I'd really
> appreciate them.

Oddly enough, disabling the default tools (see my other thread from this
week) seems to clear-up this problem.

I'll see if I can figure out what tool -- if any -- seems to be causing
this problem. I wonder if it's that stupid non-serializable Log member
or something like that.

-chris

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