When using admin console, saw the following NPE in the server log:

08:15:40,928 ERROR [MeasurementManager] Could not get measurement values
java.lang.NullPointerException
at org.teiid.rhq.admin.DQPManagementView.getErrorCount(DQPManagementView.java:666)
at org.teiid.rhq.admin.DQPManagementView.getVdbMetric(DQPManagementView.java:158)
at org.teiid.rhq.admin.DQPManagementView.getMetric(DQPManagementView.java:110)
at org.teiid.rhq.plugin.VDBComponent.getValues(VDBComponent.java:178)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.rhq.core.pc.inventory.ResourceContainer$ComponentInvocationThread.call(ResourceContainer.java:525)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)

Not sure what combination of control operations that I pressed that caused this. And I've yet to duplicate.