Description of problem: Metric chart displayed in the pop up window: 1. RHQ UI -> JBossAS7 Standalone Servers AutoGroup -> Summary -> Activity -> click on "Maximum Request Time" metric; 2. RHQ UI -> JBossAS7 Standalone Servers -> RHQ Server -> Summary -> Activity -> click on "Maximum Request Time" metric; In both cases, it is necessary to change the time period (for instance select 4h and then back again 1h) to force graph to refresh. Version-Release number of selected component (if applicable): RHQ 4.12 How reproducible: Always Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: