diff --git a/build.gradle b/build.gradle
index aaac8d318e..cfd1366a99 100644
--- a/build.gradle
+++ b/build.gradle
@@ -65,9 +65,9 @@ dependencies {
   }
   api platform("com.fasterxml.jackson:jackson-bom:$versions.jackson")
   api "com.fasterxml.jackson.core:jackson-core",
-    "com.fasterxml.jackson.core:jackson-annotations",
-    "com.fasterxml.jackson.core:jackson-databind",
-    "com.fasterxml.jackson.datatype:jackson-datatype-jsr310"
+      "com.fasterxml.jackson.core:jackson-annotations",
+      "com.fasterxml.jackson.core:jackson-databind",
+      "com.fasterxml.jackson.datatype:jackson-datatype-jsr310"
   api "org.apache.httpcomponents.client5:httpclient5:5.2.1"
   api "org.xmlunit:xmlunit-core:$versions.xmlUnit"
   api "org.xmlunit:xmlunit-legacy:$versions.xmlUnit", {
diff --git a/src/main/java/com/github/tomakehurst/wiremock/common/JsonPrettyPrinter.java b/src/main/java/com/github/tomakehurst/wiremock/common/JsonPrettyPrinter.java
index 373eeef721..52fb589a97 100644
--- a/src/main/java/com/github/tomakehurst/wiremock/common/JsonPrettyPrinter.java
+++ b/src/main/java/com/github/tomakehurst/wiremock/common/JsonPrettyPrinter.java
@@ -1,19 +1,33 @@
+/*
+ * Copyright (C) 2023 Thomas Akehurst
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package com.github.tomakehurst.wiremock.common;
 
 import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.core.util.DefaultPrettyPrinter;
-
 import java.io.IOException;
 
 public class JsonPrettyPrinter extends DefaultPrettyPrinter {
 
-    @Override
-    public DefaultPrettyPrinter createInstance() {
-        return new JsonPrettyPrinter();
-    }
+  @Override
+  public DefaultPrettyPrinter createInstance() {
+    return new JsonPrettyPrinter();
+  }
 
-    @Override
-    public void writeObjectFieldValueSeparator(final JsonGenerator jg) throws IOException {
-        jg.writeRaw(": ");
-    }
+  @Override
+  public void writeObjectFieldValueSeparator(final JsonGenerator jg) throws IOException {
+    jg.writeRaw(": ");
+  }
 }
diff --git a/src/main/java/com/github/tomakehurst/wiremock/core/WireMockApp.java b/src/main/java/com/github/tomakehurst/wiremock/core/WireMockApp.java
index 96093e1d8f..2e96ea42e3 100644
--- a/src/main/java/com/github/tomakehurst/wiremock/core/WireMockApp.java
+++ b/src/main/java/com/github/tomakehurst/wiremock/core/WireMockApp.java
@@ -193,12 +193,11 @@ public StubRequestHandler buildStubRequestHandler() {
     Map<String, PostServeAction> postServeActions = extensions.ofType(PostServeAction.class);
 
     Map<String, ServeEventListener> concatenatedMap =
-      new HashMap<>(extensions.ofType(ServeEventListener.class));
+        new HashMap<>(extensions.ofType(ServeEventListener.class));
     concatenatedMap.put("wiremock-gui", new GuiServeEventListener());
 
     Map<String, ServeEventListener> serveEventListeners =
-      Collections.unmodifiableMap(concatenatedMap);
-
+        Collections.unmodifiableMap(concatenatedMap);
 
     BrowserProxySettings browserProxySettings = options.browserProxySettings();
 
diff --git a/src/main/java/com/github/tomakehurst/wiremock/standalone/JsonFileMappingsSource.java b/src/main/java/com/github/tomakehurst/wiremock/standalone/JsonFileMappingsSource.java
index 6ce2ca3674..d83885b68a 100644
--- a/src/main/java/com/github/tomakehurst/wiremock/standalone/JsonFileMappingsSource.java
+++ b/src/main/java/com/github/tomakehurst/wiremock/standalone/JsonFileMappingsSource.java
@@ -24,8 +24,8 @@
 import com.github.tomakehurst.wiremock.stubbing.StubMappingCollection;
 import com.github.tomakehurst.wiremock.stubbing.StubMappings;
 import java.util.HashMap;
-import java.util.List;
 import java.util.LinkedHashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.UUID;
@@ -151,8 +151,8 @@ private boolean hasFolderDefinition(final StubMapping mapping) {
     }
 
     return metadata.containsKey(WIREMOCK_GUI_KEY)
-      && metadata.getMap(WIREMOCK_GUI_KEY).get(DIR_KEY) != null
-      && metadata.getMap(WIREMOCK_GUI_KEY).get(DIR_KEY) instanceof String;
+        && metadata.getMap(WIREMOCK_GUI_KEY).get(DIR_KEY) != null
+        && metadata.getMap(WIREMOCK_GUI_KEY).get(DIR_KEY) instanceof String;
   }
 
   private String getFolderDefinition(final StubMapping mapping) {