Merge pull request #4114 from jglick/AdministrativeMonitor.isActivated

Behave robustly in the face of errors from AdministrativeMonitor.isActivated

core/src/main/java/jenkins/model/Jenkins.java

@@ -2178,7 +2178,14 @@ public class Jenkins extends AbstractCIBase implements DirectlyModifiableTopLeve
      * @since 2.64
      */
     public List<AdministrativeMonitor> getActiveAdministrativeMonitors() {
-        return administrativeMonitors.stream().filter(m -> m.isEnabled() && m.isActivated()).collect(Collectors.toList());
+        return administrativeMonitors.stream().filter(m -> {
+            try {
+                return m.isEnabled() && m.isActivated();
+            } catch (Throwable x) {
+                LOGGER.log(Level.WARNING, null, x);
+                return false;
+            }
+        }).collect(Collectors.toList());
     }
 
     public NodeDescriptor getDescriptor() {