my agent was down. I had a group with that agent in it. I edited that group's conn props After I hit save, I got an error: Failed to retrieve member connection settings for [ResourceGroup[id=10051, name=agents, category=COMPATIBLE, type=RHQ Agent, isDynaGroup=false, isClusterGroup=false]] java.lang.RuntimeException:org.rhq.enterprise.server.configuration.ConfigurationUpdateStillInProgressException:Current group plugin configuration for ResourceGroup[id=10051, name=agents, category=COMPATIBLE, type=RHQ Agent, isDynaGroup=false, isClusterGroup=false] cannot be calculated, because a group plugin configuration update is currently in progress. We should catch that and post a more friendly reminder that "you can't view the current config because a update is currently in progress).
commit 9733f31 there is now a info message that asks that you wait until the update finishes. you can't view group update settings if there is a current update in progress.
this is verified in RHQ 4.0 CR1 release. I updated a group's connection information and observed the info message described above. i was unable to update the connection information a 2nd time while the 1st update was in progress, which is the new excpected behavior.
Bookkeeping - closing bug - fixed in recent release.