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From "Cott Lang (JIRA)" <...@velocity.apache.org>
Subject [jira] Created: (VELOCITY-719) Unwritable velocity.log appears to cause Velocity initialization to fail, leaving velocity dead and useless.
Date Thu, 21 May 2009 01:13:45 GMT
Unwritable velocity.log appears to cause Velocity initialization to fail, leaving velocity
dead and useless. 
-------------------------------------------------------------------------------------------------------------

                 Key: VELOCITY-719
                 URL: https://issues.apache.org/jira/browse/VELOCITY-719
             Project: Velocity
          Issue Type: Bug
          Components: Engine
    Affects Versions: 1.6.2
            Reporter: Cott Lang


When we upgraded to 1.6.2 from 1.5.0, we began experiencing failures:

Caused by: java.lang.NullPointerException
 at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1400)
 at org.apache.velocity.runtime.RuntimeSingleton.getTemplate(RuntimeSingleton.java:326)
 at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:352)

We eventually traced this back to Log4JChute attempting to create velocity.log in an unwritable
$CWD.

I realize you may or may not consider this a bug, as you may wish to have the system fail
if it can't log.  However, I couldn't even find any output indicating the initial failure
to create velocity.log causing Velocity to fail to initialize. :)

On a related note, is it possible to change the runtime.log default to BLANK so that velocity
defaults to using a pre-existing log4j config if it exists?

Although it's certainly an established tradition at this point, It seems a little backward
to default to creating it's own log4j configuration - and a google search on velocity.log
produces a very large number of people dealing with the problem of Velocity trying to create
a velocity.log somewhere that doesn't work. :)



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