Hello,

We just starting using Velocity 1.7 in our production environment and 
encountered the following error after our JVMs had been running for about 5 
days:

ERROR ResourceManager : unable to find resource '/path/to/template.vm' in any 
resource loader.

We are getting no other errors in any of our code and this is the only velocity 
message in our logs (we captured WARN and higher messages). Prior to the error 
occurring, velocity was working as expected and able to find our template. 
After the first time we received this error, all following attempts to use the 
template failed. We had two separate systems running the same code and they 
both experienced the issue within about 10 minutes of each other. Restarting 
the JVM fixed the issue in both cases.

This appears to be a very similar issue to the one described Peter over a year 
ago using Velocity 1.6.2. Unfortunately, the thread appears to trail off before 
an issue was diagnosed/fixed. (see 
http://velocity.10973.n7.nabble.com/ResourceNotFoundException-Unable-to-find-resource-td10186.html)

I'm a bit stuck since I've been unable to reproduce the issue or find out more 
information. I've tried some load tests at a concurrency of 50 (far larger than 
we receive on production), and this had no failures after 45 minutes. Has 
anybody had success in diagnosing/resolving this issue? In case it's relevant, 
here are the details of our deployment environment:

* We use Tomcat 7.0.42, with 2 webapps deployed, A and B. A is fairly large and 
complex, providing a web services api and a client API. B just contains a tiny 
servlet that calls velocity on a single template. Velocity is only used in 
webapp B.
* We use Velocity 1.7, configured to use the ClasspathResourceLoader. We 
configure Velocity programmatically.
* Our JVM is OpenJDK build 20.0-b12 (java version "1.6.0_27")

Thanks in advance!
Terence
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