Bind server.error.whitelabel.enabled to ErrorProperties

Closes gh-12516

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/ErrorProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -44,6 +44,8 @@ public class ErrorProperties {
 	 */
 	private IncludeStacktrace includeStacktrace = IncludeStacktrace.NEVER;
 
+	private Whitelabel whitelabel = new Whitelabel();
+
 	public String getPath() {
 		return this.path;
 	}
@@ -68,6 +70,14 @@ public class ErrorProperties {
 		this.includeStacktrace = includeStacktrace;
 	}
 
+	public Whitelabel getWhitelabel() {
+		return this.whitelabel;
+	}
+
+	public void setWhitelabel(Whitelabel whitelabel) {
+		this.whitelabel = whitelabel;
+	}
+
 	/**
 	 * Include Stacktrace attribute options.
 	 */
@@ -90,4 +100,20 @@ public class ErrorProperties {
 
 	}
 
+	public static class Whitelabel {
+
+		/**
+		 * Whether to enable the default error page displayed in browsers in case of a server error.
+		 */
+		private boolean enabled = true;
+
+		public boolean isEnabled() {
+			return this.enabled;
+		}
+
+		public void setEnabled(boolean enabled) {
+			this.enabled = enabled;
+		}
+	}
+
 }

spring-boot-project/spring-boot-autoconfigure/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -29,16 +29,6 @@
         "level": "error"
       }
     },
-    {
-      "name": "server.error.include-stacktrace",
-      "defaultValue": "never"
-    },
-    {
-      "name": "server.error.whitelabel.enabled",
-      "type": "java.lang.Boolean",
-      "description": "Whether to enable the default error page displayed in browsers in case of a server error.",
-      "defaultValue": true
-    },
     {
       "name": "server.port",
       "defaultValue": 8080