[private-bamoe-issues#1326] Avoid duplicate timer execution with long…

… running timers and async nodes (#2373) (#2376)

* [private-bamoe-issues#1326] Avoid duplicate timer execution with long running timers and async nodes

* [private-bamoe-issues#1326] Simplify the equals/hashCode methods

Co-authored-by: Martin Weiler <mweiler@redhat.com>

jbpm-flow/src/main/java/org/jbpm/process/core/timer/impl/GlobalTimerService.java

@@ -375,6 +375,20 @@ public String getUuid() {
             return null;
         }
 
+        @Override
+        public int hashCode() {
+            return (int)getId();
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if ( this == obj ) return true;
+            if (obj == null || !obj.getClass().equals(getClass())) {
+                 return false;
+            }
+            return getId() == ((DefaultJobHandle)obj).getId();
+        }
+
     }
 
     public static class DisposableCommandService implements InternalLocalRunner {