[hyades-dev] Anyone else having this build problem?

[Kim Coleman <kcoleman@xxxxxxxxxx>]

A co-worker of mine ran into this problem on Wed. when she pulled all new 
Hyades sources. I reproduced it on my PC and on a Solaris box. I assume it 
is an Eclipse bug, but I'm curious whether or not any of the other Hyades 
developers are running into this:

Launch a suitable Eclipse with a shiny new workspace.
Set up your PD preferences Target Platform and Java Build Path as usual
Check out all the hyades modules from HEAD, as projects
When the autobuild kicks in, you get about 30k errors and eventually a 
null pointer exception in Eclipse here:

java.lang.NullPointerException
        at 
org.eclipse.core.internal.events.BuildManager$1.handleException(BuildManager.java:161)
        at 
org.eclipse.core.internal.runtime.InternalPlatform.handleException(InternalPlatform.java:450)
        at 
org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:891)
        at org.eclipse.core.runtime.Platform.run(Platform.java:413)
        at 
org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:165)
        at 
org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:243)
        at 
org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:212)
        at 
org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:884)
        at 
org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1600)
        at 
org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:85)
        at 
org.eclipse.team.internal.ccvs.ui.repo.RepositoryManager.run(RepositoryManager.java:796)
        at 
org.eclipse.team.internal.ccvs.ui.actions.CVSAction$1.run(CVSAction.java:242)
        at 
org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:101)

The errors are quite bogus - nonsense about being unable to find 
org.eclipse.core and such. Presumably the result of whatever caused the 
NPE.

I managed to make this go away by not checking out (or else closing) 
org.eclipse.hyades.test.* and org.eclipse.hyades.ui.sample projects. (The 
sample project just 'cause it had test dependency and so got build errors 
when I ripped out the test projects).

I tried increasing the available memory to 256M (-vmargs -Xmx256M), 
changing JRE's (flavors of 1.4.0 and 1.4.1), and changing OS's (Windows 
and Solaris). I believe it has also been tried with both Eclipse 2.1 and 
Eclipse 2.1.1. It is quite stunningly reproducible around here.

I suppose it could still be an out of memory problem, though since I've 
been happily functioning with the eclipse default until now, it would 
suprise me if 256M was still not enough. Have we been that prolific 
lately?

I'll be happy to report it as a bug against Eclipse, but meanwhile, I'm 
wondering what we did to the source base recently to tickle this. I hadn't 
pulled new source for a week or two. Or does this only happen in 
California?

I am about to abrogate my responsibilities by going away on vacation for a 
week, so if details are desired, please contact Anandi Krishnamurthy 
(anandik@xxxxxxxxxx), the original victim. :-)

Kim Coleman
PurifyPlus Development
IBM Rational Software, Cupertino, CA
kcoleman@xxxxxxxxxx