Add a json coercer for URLs

java/client/src/org/openqa/selenium/json/JsonTypeCoercer.java

@@ -86,6 +86,7 @@ class JsonTypeCoercer {
             .add(new NumberCoercer<>(Short.class, Number::shortValue))
             .add(new StringCoercer())
             .add(new EnumCoercer())
+            .add(new UrlCoercer())
 
             // From Selenium
             .add(new MapCoercer<>(

java/client/src/org/openqa/selenium/json/UrlCoercer.java

@@ -0,0 +1,57 @@
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you 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 org.openqa.selenium.json;
+
+import java.lang.reflect.Type;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.function.BiFunction;
+
+class UrlCoercer extends TypeCoercer<URL> {
+
+  @Override
+  public boolean test(Class<?> type) {
+    return URL.class.isAssignableFrom(type);
+  }
+
+  @Override
+  public BiFunction<JsonInput, PropertySetting, URL> apply(Type type) {
+    return (jsonInput, propertySetting) -> {
+      String toCoerce;
+
+      switch (jsonInput.peek()) {
+        case NAME:
+          toCoerce = jsonInput.nextName();
+          break;
+
+        case STRING:
+          toCoerce = jsonInput.nextString();
+          break;
+
+        default:
+          throw new JsonException("Unable to coerce type to URL: " + jsonInput.peek());
+      }
+
+      try {
+        return new URL(toCoerce);
+      } catch (MalformedURLException e) {
+        throw new JsonException(e);
+      }
+    };
+  }
+}