Polish

spring-boot-samples/spring-boot-sample-actuator/src/test/java/org/springframework/boot/sample/ops/UnsecureManagementSampleActuatorApplicationTests.java

@@ -41,7 +41,7 @@ import org.springframework.web.client.RestTemplate;
 /**
  * Integration tests for unsecured service endpoints (even with Spring Security on
  * classpath).
- * 
+ *
  * @author Dave Syer
  */
 public class UnsecureManagementSampleActuatorApplicationTests {
@@ -87,7 +87,7 @@ public class UnsecureManagementSampleActuatorApplicationTests {
 	public void testMetrics() throws Exception {
 		try {
 			testHomeIsSecure(); // makes sure some requests have been made
-		} catch (AssertionError e) {
+		} catch (AssertionError ex) {
 			// ignore;
 		}
 		@SuppressWarnings("rawtypes")

spring-boot-samples/spring-boot-sample-data-mongodb/src/test/java/org/springframework/boot/sample/data/mongo/SampleMongoApplicationTests.java

@@ -39,8 +39,8 @@ public class SampleMongoApplicationTests {
 	public void testDefaultSettings() throws Exception {
 		try {
 			SampleMongoApplication.main(new String[0]);
-		} catch (IllegalStateException e) {
-			if (serverNotRunning(e)) {
+		} catch (IllegalStateException ex) {
+			if (serverNotRunning(ex)) {
 				return;
 			}
 		}

spring-boot-samples/spring-boot-sample-websocket/src/main/java/org/springframework/boot/samples/websocket/snake/SnakeTimer.java

@@ -94,8 +94,8 @@ public class SnakeTimer {
 				try {
 					tick();
 				}
-				catch (Throwable e) {
-					log.error("Caught to prevent timer from shutting down", e);
+				catch (Throwable ex) {
+					log.error("Caught to prevent timer from shutting down", ex);
 				}
 			}
 		}, TICK_DELAY, TICK_DELAY);