https://issues.apache.org/bugzilla/show_bug.cgi?id=56242

Mark Thomas <ma...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID
                 OS|                            |All

--- Comment #3 from Mark Thomas <ma...@apache.org> ---
If you start Tomcat with -Xverify:none (not something I'd recommend doing) the
problem goes away. This looks like a VisualVM bug that is triggered by one of
the velocity classes.

As an alternative, attach VisualVM and then deploy the Velocity app.

For those wondering how I stumbled across the solution:
1. Google "attach: task_for_pid(23490) failed (5)"
2. Read through the VisualVm bug reports that finds
3. Specifically read this one: https://java.net/jira/browse/VISUALVM-326
4. Experiment with the settings suggested in that report to see which are
actually required

I'd recommend opening a VisalVM bug for this.

I concur that this is a Mac specific error.

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