During start there appears IncompatibleClassChangeError in hawkular pod:
Exception in thread "Hawkular WildFly Agent Full Discovery Scan-Local JMX-1" java.lang.IncompatibleClassChangeError:
Inconsistent constant pool data in classfile for class org/hawkular/inventory/api/model/InventoryStructure.
Method lambda$getChildNodes$0(
Lorg/hawkular/inventory/paths/RelativePath;
Lorg/hawkular/inventory/paths/SegmentType;
Lorg/hawkular/inventory/api/model/Entity$Blueprint
Lorg/hawkular/inventory/api/model/InventoryStructure$FullNode;
at index 93 is CONSTANT_MethodRef and should be CONSTANT_Inte
at org.hawkular.inventory.api.model.InventoryStructure.getChildNodes(InventoryStructure.java:102)

http://pastebin.test.redhat.com/665205
I checked hawkular-javaagent-1.0.1.Final-redhat-2-shaded.jar, but this jar is unchanged compared to version in openjdk18-openshift:CLOUD-2869 ( that starts OK)