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I started qa-refactor with the intent of fixing latent bugs, an unintentional 
benefit is significantly reduced processing times, contention and increased 
scalability.

Changes in timing exposed more bugs.

Up until recently an occassional build failure would be experienced due to 
classdep only partially writing a dep file, resulting in ClassNotFoundException 
during testing.  Knowing that RFC3986URLClassLoader is much faster resolving 
classes than URLClassLoader, I thought, I'd try using it in ClassDep.
 
Guess what the result was?  That's right lot's more ClassNotFoundException's

Qa-refactor is stable, but only when the build process succeeds without error.

I now must choose, do I waste time fixing a legacy build tool, or is it time 
for a modular build to reduce long term maintenance and simplify, lowering the 
bar for new users?

To me, going modular is a no brainer, but what tool should we use and why?

* Maven
* Gradle
* Ivy & ant

Please keep responses to the point, with any pro's and cons you have, eg:

Maven:
 +widely adopted
 +well structured dependency relationships
 -dependency downloads.

Gradle:
-adoption
+Groovy build scripts

Ivy:
+uses ant, our existing build tool 
-adoption

When complete, I suggest, we all can rank the relevance or importance of each 
point raised (on a scale of -10 to 10) then add up for the final score to 
decide the tool.

Regards,

Peter.

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