Fix issue with ConfigMap with profiles inside and no active profiles

spring-cloud-kubernetes-config/src/main/java/org/springframework/cloud/kubernetes/config/ConfigMapPropertySource.java

@@ -123,7 +123,7 @@ public class ConfigMapPropertySource extends KubernetesPropertySource {
 	private static Function<String, Properties> yamlParserGenerator(final String[] profiles) {
 		return s -> {
 			YamlPropertiesFactoryBean yamlFactory = new YamlPropertiesFactoryBean();
-			if (profiles != null) {
+			if ((profiles != null) && (profiles.length > 0)){
 				yamlFactory.setDocumentMatchers(
 					(DocumentMatcher) properties ->
 						(asList(profiles).contains(properties.getProperty("spring.profiles")) ?

spring-cloud-kubernetes-config/src/test/java/org/springframework/cloud/kubernetes/config/ConfigMapsWithProfilesNoActiveProfileSpringBootTest.java

@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2016 to the original 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
+ *
+ *         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.springframework.cloud.kubernetes.config;
+
+import static io.restassured.RestAssured.when;
+import static org.hamcrest.core.Is.is;
+import static org.springframework.cloud.kubernetes.config.ConfigMapTestUtil.readResourceFile;
+
+import io.fabric8.kubernetes.api.model.ConfigMapBuilder;
+import io.fabric8.kubernetes.client.Config;
+import io.fabric8.kubernetes.client.KubernetesClient;
+import io.fabric8.kubernetes.client.server.mock.KubernetesServer;
+import io.restassured.RestAssured;
+import java.util.HashMap;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.cloud.kubernetes.config.example.App;
+import org.springframework.test.context.junit4.SpringRunner;
+
+/**
+ * @author <a href="mailto:cmoullia@redhat.com">Charles Moulliard</a>
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
+                classes = App.class,
+				properties = { "spring.application.name=configmap-with-profile-no-active-profiles-example",
+	           "spring.cloud.kubernetes.reload.enabled=false"}
+	           )
+public class ConfigMapsWithProfilesNoActiveProfileSpringBootTest {
+
+	@ClassRule
+	public static KubernetesServer server = new KubernetesServer();
+
+	private static KubernetesClient mockClient;
+
+	@Autowired(required = false)
+	Config config;
+
+	private static final String APPLICATION_NAME = "configmap-with-profile-no-active-profiles-example";
+
+	@Value("${local.server.port}")
+	private int port;
+
+	@BeforeClass
+	public static void setUpBeforeClass() {
+		mockClient = server.getClient();
+
+		//Configure the kubernetes master url to point to the mock server
+		System.setProperty(Config.KUBERNETES_MASTER_SYSTEM_PROPERTY, mockClient.getConfiguration().getMasterUrl());
+		System.setProperty(Config.KUBERNETES_TRUST_CERT_SYSTEM_PROPERTY, "true");
+		System.setProperty(Config.KUBERNETES_AUTH_TRYKUBECONFIG_SYSTEM_PROPERTY, "false");
+		System.setProperty(Config.KUBERNETES_AUTH_TRYSERVICEACCOUNT_SYSTEM_PROPERTY, "false");
+		System.setProperty(Config.KUBERNETES_NAMESPACE_SYSTEM_PROPERTY, "test");
+
+		HashMap<String,String> data = new HashMap<>();
+		data.put("application.yml", readResourceFile("application-with-profiles.yaml"));
+		server.expect().withPath("/api/v1/namespaces/test/configmaps/" + APPLICATION_NAME).andReturn(200, new ConfigMapBuilder()
+			.withNewMetadata().withName(APPLICATION_NAME).endMetadata()
+			.addToData(data)
+			.build())
+			.always();
+	}
+
+	@Before
+	public void setUp() {
+		RestAssured.baseURI = String.format("http://localhost:%d/api/greeting", port);
+	}
+
+	@Test
+	public void testGreetingEndpoint() {
+		when().get()
+			.then()
+			.statusCode(200)
+			.body("content", is("Hello ConfigMap prod, World!"));
+	}
+
+}