[news.eclipse.technology.buckminster] Exceptions and other issues with b

[Vaidas Nargėlas <vaidasn@xxxxxxxxx>]

Hi Thomas,

I noticed that build fails but not always on my headless buckminster.

I got this exception on build command which was invoked directly after 
import to an empty workspace:

ERROR: Problems occurred when invoking code from plug-in: "org.eclipse.jdt.core".
java.util.ConcurrentModificationException
        at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:449)
        at java.util.AbstractList$Itr.next(AbstractList.java:420)
        at org.eclipse.pde.internal.core.AbstractModelManager.fireModelProviderEvent(AbstractModelManager.java:34)
        at org.eclipse.pde.internal.core.WorkspaceModelManager.processModelChanges(WorkspaceModelManager.java:237)
        at org.eclipse.pde.internal.core.WorkspaceModelManager.resourceChanged(WorkspaceModelManager.java:128)
        at org.eclipse.jdt.internal.core.DeltaProcessingState$1.run(DeltaProcessingState.java:363)
        at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
        at org.eclipse.jdt.internal.core.DeltaProcessingState.resourceChanged(DeltaProcessingState.java:358)
        at org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:282)
        at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
        at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:276)
        at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:148)
        at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:311)
        at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1018)
        at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:150)
        at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:235)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
ERROR: Exception occurred in listener of pre Java resource change notification
java.util.ConcurrentModificationException
        at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:449)
        at java.util.AbstractList$Itr.next(AbstractList.java:420)
        at org.eclipse.pde.internal.core.AbstractModelManager.fireModelProviderEvent(AbstractModelManager.java:34)
        at org.eclipse.pde.internal.core.WorkspaceModelManager.processModelChanges(WorkspaceModelManager.java:237)
        at org.eclipse.pde.internal.core.WorkspaceModelManager.resourceChanged(WorkspaceModelManager.java:128)
        at org.eclipse.jdt.internal.core.DeltaProcessingState$1.run(DeltaProcessingState.java:363)
        at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
        at org.eclipse.jdt.internal.core.DeltaProcessingState.resourceChanged(DeltaProcessingState.java:358)
        at org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:282)
        at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
        at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:276)
        at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:148)
        at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:311)
        at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1018)
        at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:150)
        at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:235)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

The other problem is that sometimes my build command fails with all kind of 
strange compilation errors that are not really there. Usually that happens 
after I change target environment (see my post 'Issues with headless 
metadata refresh'). Running the everyting anew usually fixes this.


Thanks,

Vaidas