Fix Sonatype NULL DEFERENCE bug

Signed-off-by: manick02 <[email protected]>

Author: manick02

utils/src/main/java/io/serverlessworkflow/utils/WorkflowUtils.java

@@ -154,8 +154,7 @@ public static List<EventDefinition> getWorkflowProducedEvents(Workflow workflow)
     Set<String> uniqueEvents = new HashSet<>();
     for (State state : workflow.getStates()) {
       End end = state.getEnd();
-      if (end == null) continue;
-      if (end.getProduceEvents() != null || end.getProduceEvents().size() != 0) {
+      if (end != null && end.getProduceEvents() != null && end.getProduceEvents().size() != 0) {
         end.getProduceEvents()
             .forEach(produceEvent -> uniqueEvents.add(produceEvent.getEventRef()));
       }