[Bug 427539] Re: [FFe] Sync libmaven packages from Debian unstable

[Brian Burch]

I think I understand my problem, and also have a bypass.

When I created the clean karmic maven schroot system, I was surprised to
find that it responded OK to "mvn --help", because this simple command
would always crash on my "production" karmic system.

I went back to my production karmic system - the help worked fine (it
had failed every time before), and I could build my sample project. What
had changed?

Scratching around, I checked an backup copy of the ~/.m2/ directory....
it was full of stuff that maven had cached. However my mysteriously
working production system and my schroot karmic and lucid systems all
had almost-empty contents for this directory.

I guess that I had previously created a corrupt maven cache by copying
.m2 onto my "production" karmic system. Something (probably running
maven when not connected to the internet) had cleaned it out. With an
almost-empty .m2, maven could respond to help. The next time I built my
sample project while onlne, it automatically downloaded the correct
support files and the build worked.

I suggest that anyone suffering from this bug tries the following
bypass:

1. rename ~/.m2/ to something else.
2. mvn --help

... then, if the help runs OK...
3. cd myProject
4. mvn clean install

I hope that works for you as well as it does for me!

-- 
[FFe] Sync libmaven packages from Debian unstable
https://bugs.launchpad.net/bugs/427539
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