GH-725 Fix getNames() method to properly compute available function names

Resolves #725

spring-cloud-function-samples/function-sample-functional-aws-routing/src/test/java/example/MapTests.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2012-2019 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://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 example;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * @author Dave Syer
+ *
+ */
+public class MapTests {
+
+	@Test
+	public void test() {
+
+	}
+}