core/src/main/java/org/lflang/federated/extensions/CExtension.java

@@ -838,7 +838,8 @@ private String generateCodeForPhysicalActions(
       if (federate.targetConfig.getOrDefault(DNETProperty.INSTANCE)) {
         ActionInstance found = federate.findPhysicalAction(instance);
         if (found != null) {
-          String warning = String.join(
+          String warning =
+              String.join(
                   "\n",
                   "Found a physical action inside the federate "
                       + addDoubleQuotes(instance.getName()),

core/src/main/java/org/lflang/federated/generator/FederateInstance.java

@@ -649,24 +649,23 @@ private boolean containsAllVarRefs(Iterable<VarRef> varRefs) {
 
   /**
    * Return the first found physical action or null if there is no physical action in this federate.
-   * 
+   *
    * @param instance The reactor instance to check whether there is a physical action.
    */
-  public ActionInstance findPhysicalAction(
-    ReactorInstance instance) {
-      for (ActionInstance action : instance.actions) {
+  public ActionInstance findPhysicalAction(ReactorInstance instance) {
+    for (ActionInstance action : instance.actions) {
+      if (action.isPhysical()) {
+        return action;
+      }
+    }
+    for (ReactorInstance child : instance.children) {
+      for (ActionInstance action : child.actions) {
         if (action.isPhysical()) {
           return action;
         }
       }
-      for (ReactorInstance child : instance.children) {
-        for (ActionInstance action : child.actions) {
-          if (action.isPhysical()) {
-            return action;
-          }
-        }
-      }
-      return null;
+    }
+    return null;
   }
 
   /**