Reactor hangs (a desperate cry for help)

[Alex Vollmer]

I have a large componentized build with about 20 sub-projects. As I've 
been moving this project to Maven I've been looking for ways to speed it 
up. One of the ways I've done that is setting the 'maven.junit.fork' 
property to 'false' to dramatically speed-up the unit-tests. However in 
doing this I've found that Maven, perhaps more specifically the reactor, 
hangs at compiling the source for the same project over and over again. 
I mean literally hangs. I check the process (I'm doing this on linux) 
and the process is doing nothing (via strace) but sucking CPU time (via 
top).

I've tried this with beta-8 and beta-9, using JDK 1.3.1 and JDK 1.4. The 
other interesting thing to note is that if I kill it (CTRL+C) and 
restart Maven, it picks up on the sub-project where it last hung and 
successfully completes to the end of the build. I'm at my wits' end here 
so if anyone has any suggestions or pointers I would greatly appreciate 
it. Oh one other thing, as an experiment I modified the 'java:compile' 
goal (in beta 9) so that it didn't fork a process for 'javac' and 
noticed that I locked-up much earlier.  Maybe there's some secret 
process size limit that isn't allowing me to do all of this stuff in one 
process.

TIA

--Alex

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