diff --git a/controller/src/main/java/org/jboss/as/controller/AbstractOperationContext.java b/controller/src/main/java/org/jboss/as/controller/AbstractOperationContext.java
index 28c5473740f..c04bc69e116 100644
--- a/controller/src/main/java/org/jboss/as/controller/AbstractOperationContext.java
+++ b/controller/src/main/java/org/jboss/as/controller/AbstractOperationContext.java
@@ -1227,6 +1227,7 @@ final boolean isRollingBack() {
     public final void reloadRequired() {
         if (processState.isReloadSupported()) {
             if(isBooting()) {
+                MGMT_OP_LOGGER.debug("Server is booting so we didn't set the reload required flag");
                 return;
             }
             activeStep.setRestartStamp(processState.setReloadRequired());
diff --git a/controller/src/main/java/org/jboss/as/controller/persistence/yaml/YamlConfigurationExtension.java b/controller/src/main/java/org/jboss/as/controller/persistence/yaml/YamlConfigurationExtension.java
index f243173ba33..b0b90c4764d 100644
--- a/controller/src/main/java/org/jboss/as/controller/persistence/yaml/YamlConfigurationExtension.java
+++ b/controller/src/main/java/org/jboss/as/controller/persistence/yaml/YamlConfigurationExtension.java
@@ -45,6 +45,7 @@
 import org.jboss.as.controller.MapAttributeDefinition;
 import org.jboss.as.controller.ObjectMapAttributeDefinition;
 import org.jboss.as.controller.ObjectTypeAttributeDefinition;
+import org.jboss.as.controller.ParallelBootOperationStepHandler;
 import org.jboss.as.controller.ParsedBootOp;
 import org.jboss.as.controller.PathAddress;
 import org.jboss.as.controller.RunningMode;
@@ -160,13 +161,29 @@ public void processOperations(ImmutableManagementResourceRegistration rootRegist
         }
         MGMT_OP_LOGGER.debug("We are applying YAML files to the configuration");
         Map<PathAddress, ParsedBootOp> xmlOperations = new HashMap<>();
+        ParsedBootOp parallelBootOp = null;
         for (ParsedBootOp op : postExtensionOps) {
-            if (op.getChildOperations().isEmpty()) {
+            List<ModelNode> childOperations = op.getChildOperations();
+            if (childOperations.isEmpty()) {
                 xmlOperations.put(op.getAddress(), op);
             } else {
-                for (ModelNode childOp : op.getChildOperations()) {
-                    ParsedBootOp subOp = new ParsedBootOp(childOp, null);
-                    xmlOperations.put(subOp.getAddress(), subOp);
+                if (op.handler instanceof ParallelBootOperationStepHandler) {
+                    /* We need to createa new  ParsedBootOp so that the handler number of childOperations is different from the number of childOperation of the handler and thus the handler will be properly updated.
+                     * @see ModelCOntrollerImpl.boot(final List<ModelNode> bootList, final OperationMessageHandler handler, final OperationTransactionControl control,
+                     *                               final boolean rollbackOnRuntimeFailure, MutableRootResourceRegistrationProvider parallelBootRootResourceRegistrationProvider,
+                     *                               final boolean skipModelValidation, final boolean partialModel, final ConfigurationExtension configExtension)
+                     */
+                    parallelBootOp = new ParsedBootOp(op, op.handler);
+                    for (ModelNode childOp : childOperations) {
+                        ParsedBootOp subOp = new ParsedBootOp(childOp, null);
+                        xmlOperations.put(subOp.getAddress(), subOp);
+                        parallelBootOp.addChildOperation(subOp);
+                    }
+                } else {
+                    for (ModelNode childOp : childOperations) {
+                        ParsedBootOp subOp = new ParsedBootOp(childOp, null);
+                        xmlOperations.put(subOp.getAddress(), subOp);
+                    }
                 }
             }
         }
@@ -176,6 +193,21 @@ public void processOperations(ImmutableManagementResourceRegistration rootRegist
         for (Map.Entry<String, Object> deployment : deployments.entrySet()) {
             processUnmanagedDeployments(rootRegistration, deployment, xmlOperations, postExtensionOps);
         }
+        List<ParsedBootOp> reorderedList = new ArrayList<>(postExtensionOps.size());
+        for (ParsedBootOp op : postExtensionOps) {
+            if (parallelBootOp != null && op.getAddress().size() > 0 && "subsystem".equals(op.getAddress().getElement(0).getKey())) {
+                //The new operations created from the YAML are added to the parallel boot operation enclosing all the subsystem operations
+                parallelBootOp.addChildOperation(op);
+            } else if (op.handler instanceof ParallelBootOperationStepHandler) {
+                //The parallel boot operation is added to the list
+                reorderedList.add(parallelBootOp);
+            } else {
+                //The new operations created from the YAML are added to the list of operations (if they haven't already be added in a subsystem enclosing operation).
+                reorderedList.add(op);
+            }
+        }
+        postExtensionOps.clear();
+        postExtensionOps.addAll(reorderedList);
         this.configs.clear();
         needReload = true;
     }
@@ -424,7 +456,7 @@ private void processAttributes(PathAddress address, ImmutableManagementResourceR
             }
         }
         for (AttributeDefinition def : operationEntry.getOperationDefinition().getParameters()) {
-            if (def != null && ! attributeNames.contains(def.getName())) {
+            if (def != null && !attributeNames.contains(def.getName())) {
                 if (!def.isResourceOnly()) {
                     attributes.add(def);
                 }
diff --git a/testsuite/manualmode/src/test/java/org/jboss/as/test/manualmode/management/persistence/yaml/YamlExtensionTestCase.java b/testsuite/manualmode/src/test/java/org/jboss/as/test/manualmode/management/persistence/yaml/YamlExtensionTestCase.java
index 00c33932546..8e4901b272e 100644
--- a/testsuite/manualmode/src/test/java/org/jboss/as/test/manualmode/management/persistence/yaml/YamlExtensionTestCase.java
+++ b/testsuite/manualmode/src/test/java/org/jboss/as/test/manualmode/management/persistence/yaml/YamlExtensionTestCase.java
@@ -433,7 +433,7 @@ public void testYamlOperations() throws Exception {
         result = Operations.readResult(client.execute(Operations.createReadResourceOperation(PathAddress.pathAddress("subsystem", "elytron").toModelNode(), true)));
         Assert.assertEquals("Yaml operation to undefine disallowed-providers was not executed.", "undefined", result.get("disallowed-providers").asString());
         ModelNode permissions = result.get("permission-set").get("default-permissions").get("permissions");
-        Assert.assertEquals("Yaml change to port set mail-smtp outbound socket binding is wrong", "[{\"class-name\" => \"org.wildfly.security.auth.permission.LoginPermission\",\"module\" => \"org.wildfly.security.elytron-base\",\"target-name\" => \"*\"}]", permissions.asString());
+        Assert.assertEquals("Yaml change to set default permissions is wrong", "[{\"class-name\" => \"org.wildfly.security.auth.permission.LoginPermission\",\"module\" => \"org.wildfly.security.elytron-base\",\"target-name\" => \"*\"}]", permissions.asString());
     }
 
     @Test