license comment

Author: Alex Danilenko

core/src/main/java/spotty/common/state/StateHandlerGraph.java

@@ -37,7 +37,7 @@ public final class StateHandlerGraph<S extends Enum<S>> {
     public void handleState(S state) {
         final Node node = nodes.get(state);
         if (node == null) {
-            throw new SpottyException(format("node not found for state %s", state));
+            throw new SpottyException("node not found for state %s", state);
         }
 
         final GraphFilter filter = filters.getOrDefault(state, GraphFilter.EMPTY);

core/src/main/java/spotty/server/Server.java

@@ -1,3 +1,18 @@
+/*
+ * Copyright 2022 - Alex Danilenko
+ *
+ *  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 spotty.server;
 
 import org.slf4j.Logger;
@@ -174,12 +189,12 @@ public String host() {
     public String hostUrl() {
         final StringBuilder sb = new StringBuilder("http");
         if (enabledHttps) {
-            sb.append("s");
+            sb.append('s');
         }
 
         sb.append("://");
         sb.append(host());
-        sb.append(":");
+        sb.append(':');
         sb.append(port());
 
         return sb.toString();