NetBeans 7 Cannot Open Maven 2 Projects That Contain Modules

[deckerego]

Sorry for being a bit grouchy here... I've been trying unsuccessfully to get NB7 working for six hours now and it's 2 AM.

It appears the Maven module that ships with NetBeans 7 has great difficulties opening up Maven 2 projects that have sub-modules. 9 times out of 10, when I open a parent project that has modules within it the heap continually grows until it overflows and I get nice 1GB heap dumps in var/log.

If I profile NetBeans itself I see it constantly calling the dependency management classes in the sonatype library. It never seems to stop and either spins indefinitely or overflows the heap. Doing CPU sampling I constantly see the sonatype libraries occupying the vast majority of CPU time.

I've tried disabling indexing (set to "Never" in the Maven options), I've up'd Xmx to 2GB, changed to the mark-and-sweep GC, even manually tried to request GC via VisualVM to stop the heap from thrashing. I made sure no lock files existed in the Lucene index directories (even tho I turned off indexing, it appeared to continue to do so by creating new lock files and running the Lucene index methods). I let the IDE just sit and spin for over an hour, but no luck. Even switched between OpenJDK 1.6.0_20 and Sun's 1.6.0_24-b07, but neither worked.

I also switched from the Maven libs that shipped with NetBeans to my own, which are 2.2.1. Same behavior.

Things work fine in NetBeans 6.9.1. The new plugin in NetBeans 7 seems to be scanning, inspecting and indexing so much that it must be hitting some sort of circular dependency or it just hates my guts.

[deckerego]

[deckerego]

This appears to have been reported as http://netbeans.org/bugzilla/show_bug.cgi?id=198047