Use only ConfigFileApplicationListener in server mini-application

In the server we use a SpringApplicationEnvironmentRepository to load
the YAML and properties files from git (or locally). It creates a mini
SpringApplication so as to faithfully replicate the way the Environment
is created. Unfortunately that can have side effects on the server
application itself (e.g. setting log levels). In particular if the
mini SpringApplication fails to start then the log levels could be
left in a "preInitialized" state with all log levels OFF by default.

This change ensures that the server logs all errors when loading YAML
and properties files, and also that the client logs the error response
if it is JSON (as it should be).

Fixes gh-66, fixes gh-67

spring-cloud-config-server/src/test/java/org/springframework/cloud/config/server/NativeConfigServerIntegrationTests.java

@@ -0,0 +1,58 @@
+package org.springframework.cloud.config.server;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+import java.io.IOException;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.boot.test.IntegrationTest;
+import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.boot.test.TestRestTemplate;
+import org.springframework.cloud.config.Environment;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = ConfigServerApplication.class)
+@IntegrationTest({ "server.port:0", "spring.config.name:configserver" })
+@WebAppConfiguration
+@ActiveProfiles({ "test", "native" })
+public class NativeConfigServerIntegrationTests {
+	
+	@Value("${local.server.port}")
+	private int port;
+	
+	@BeforeClass
+	public static void init() throws IOException{
+		ConfigServerTestUtils.prepareLocalRepo();
+	}
+
+	@Test
+	public void contextLoads() {
+		Environment environment = new TestRestTemplate().getForObject("http://localhost:" + port + "/foo/development/", Environment.class);
+		assertFalse(environment.getPropertySources().isEmpty());
+		assertEquals("overrides", environment.getPropertySources().get(0).getName());
+		assertEquals("{spring.cloud.config.enabled=true}", environment.getPropertySources().get(0).getSource().toString());
+	}
+
+	@Test
+	public void badYaml() {
+		ResponseEntity<String> response = new TestRestTemplate().getForEntity("http://localhost:"
+				+ port + "/bad/default/", String.class);
+		assertEquals(HttpStatus.INTERNAL_SERVER_ERROR, response.getStatusCode());
+	}
+
+	public static void main(String[] args) {
+		new SpringApplicationBuilder(ConfigServerApplication.class).profiles("native").properties(
+				"spring.config.name=configserver").run(args);
+	}
+
+}

spring-cloud-config-server/src/test/java/org/springframework/cloud/config/server/VanillaConfigServerIntegrationTests.java

@@ -23,21 +23,23 @@ import org.springframework.test.context.web.WebAppConfiguration;
 @WebAppConfiguration
 @ActiveProfiles("test")
 public class VanillaConfigServerIntegrationTests {
-	
+
 	@Value("${local.server.port}")
 	private int port;
-	
+
 	@BeforeClass
-	public static void init() throws IOException{
+	public static void init() throws IOException {
 		ConfigServerTestUtils.prepareLocalRepo();
 	}
 
 	@Test
 	public void contextLoads() {
-		Environment environment = new TestRestTemplate().getForObject("http://localhost:" + port + "/foo/development/", Environment.class);
+		Environment environment = new TestRestTemplate().getForObject("http://localhost:"
+				+ port + "/foo/development/", Environment.class);
 		assertFalse(environment.getPropertySources().isEmpty());
 		assertEquals("overrides", environment.getPropertySources().get(0).getName());
-		assertEquals("{spring.cloud.config.enabled=true}", environment.getPropertySources().get(0).getSource().toString());
+		assertEquals("{spring.cloud.config.enabled=true}", environment
+				.getPropertySources().get(0).getSource().toString());
 	}
 
 }

spring-cloud-config-server/src/test/resources/bad.yml

@@ -0,0 +1,4 @@
+foo:
+# whitespace error!
+	bar: spam
+    bucket: wham