Polish

Closes gh-10168

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/statsd/StatsdMetricWriter.java

@@ -121,8 +121,8 @@ public class StatsdMetricWriter implements MetricWriter, Closeable {
 
 	/**
 	 * Sanitize the metric name if necessary.
-	 * @param name The metric name
-	 * @return The sanitized metric name
+	 * @param name the metric name
+	 * @return the sanitized metric name
 	 */
 	private String sanitizeMetricName(String name) {
 		return name.replace(":", "-");

spring-boot-actuator/src/test/java/org/springframework/boot/actuate/health/CompositeReactiveHealthIndicatorFactoryTests.java

@@ -74,19 +74,19 @@ public class CompositeReactiveHealthIndicatorFactoryTests {
 
 	@Test
 	public void reactiveHealthIndicatorTakesPrecedence() {
-		ReactiveHealthIndicator reactivehealthIndicator = mock(
+		ReactiveHealthIndicator reactiveHealthIndicator = mock(
 				ReactiveHealthIndicator.class);
-		given(reactivehealthIndicator.health()).willReturn(Mono.just(UP));
+		given(reactiveHealthIndicator.health()).willReturn(Mono.just(UP));
 		HealthIndicator regularHealthIndicator = mock(HealthIndicator.class);
 		given(regularHealthIndicator.health()).willReturn(UP);
 		ReactiveHealthIndicator healthIndicator = createHealthIndicator(
-				Collections.singletonMap("test", reactivehealthIndicator),
+				Collections.singletonMap("test", reactiveHealthIndicator),
 				Collections.singletonMap("test", regularHealthIndicator));
 		StepVerifier.create(healthIndicator.health()).consumeNextWith((h) -> {
 			assertThat(h.getStatus()).isEqualTo(Status.UP);
 			assertThat(h.getDetails()).containsOnlyKeys("test");
 		}).verifyComplete();
-		verify(reactivehealthIndicator, times(1)).health();
+		verify(reactiveHealthIndicator, times(1)).health();
 		verify(regularHealthIndicator, times(0)).health();
 	}
 

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurations.java

@@ -36,7 +36,7 @@ import org.springframework.util.ClassUtils;
  */
 public class AutoConfigurations extends Configurations implements Ordered {
 
-	private static AutoConfigurationSorter SORTER = new AutoConfigurationSorter(
+	private static final AutoConfigurationSorter SORTER = new AutoConfigurationSorter(
 			new SimpleMetadataReaderFactory(), null);
 
 	private static final Ordered ORDER = new AutoConfigurationImportSelector();

spring-boot-cli/src/main/java/org/springframework/boot/cli/compiler/grape/RepositoryConfiguration.java

@@ -35,8 +35,8 @@ public final class RepositoryConfiguration {
 
 	/**
 	 * Creates a new {@code RepositoryConfiguration} instance.
-	 * @param name The name of the repository
-	 * @param uri The uri of the repository
+	 * @param name the name of the repository
+	 * @param uri the uri of the repository
 	 * @param snapshotsEnabled {@code true} if the repository should enable access to
 	 * snapshots, {@code false} otherwise
 	 */

spring-boot-test/src/main/java/org/springframework/boot/test/util/TestPropertyValues.java

@@ -60,7 +60,7 @@ public final class TestPropertyValues {
 
 	/**
 	 * Builder method to add more properties.
-	 * @param pairs The property pairs to add
+	 * @param pairs the property pairs to add
 	 * @return a new {@link TestPropertyValues} instance
 	 */
 	public TestPropertyValues and(String... pairs) {
@@ -119,7 +119,7 @@ public final class TestPropertyValues {
 
 	/**
 	 * Add the properties to the {@link System#getProperties() system properties} for the
-	 * duration of the {@code call}, restoring previous values then the call completes.
+	 * duration of the {@code call}, restoring previous values when the call completes.
 	 * @param <T> the result type
 	 * @param call the call to make
 	 * @return the result of the call
@@ -158,7 +158,7 @@ public final class TestPropertyValues {
 	 * Return a new {@link TestPropertyValues} with the underlying map populated with the
 	 * given property pairs. Name-value pairs can be specified with colon (":") or equals
 	 * ("=") separators.
-	 * @param pairs The key value pairs for properties that need to be added to the
+	 * @param pairs the name-value pairs for properties that need to be added to the
 	 * environment
 	 * @return the new instance
 	 */
@@ -170,7 +170,7 @@ public final class TestPropertyValues {
 	 * Return a new {@link TestPropertyValues} with the underlying map populated with the
 	 * given property pairs. Name-value pairs can be specified with colon (":") or equals
 	 * ("=") separators.
-	 * @param pairs The key value pairs for properties that need to be added to the
+	 * @param pairs the name-value pairs for properties that need to be added to the
 	 * environment
 	 * @return the new instance
 	 */
@@ -185,7 +185,7 @@ public final class TestPropertyValues {
 	 * Return a new {@link TestPropertyValues} with the underlying map populated with the
 	 * given property pairs. Name-value pairs can be specified with colon (":") or equals
 	 * ("=") separators.
-	 * @param pairs The key value pairs for properties that need to be added to the
+	 * @param pairs the name-value pairs for properties that need to be added to the
 	 * environment
 	 * @return the new instance
 	 */
@@ -197,7 +197,7 @@ public final class TestPropertyValues {
 	}
 
 	/**
-	 * Return a new empty {@link TestPropertyValues} instance.
+	 * Return an empty {@link TestPropertyValues} instance.
 	 * @return an empty instance
 	 */
 	public static TestPropertyValues empty() {
@@ -252,9 +252,9 @@ public final class TestPropertyValues {
 
 		public static Pair parse(String pair) {
 			int index = getSeparatorIndex(pair);
-			String key = (index > 0 ? pair.substring(0, index) : pair);
+			String name = (index > 0 ? pair.substring(0, index) : pair);
 			String value = (index > 0 ? pair.substring(index + 1) : "");
-			return of(key.trim(), value.trim());
+			return of(name.trim(), value.trim());
 		}
 
 		private static int getSeparatorIndex(String pair) {

spring-boot-test/src/test/java/org/springframework/boot/test/util/TestPropertyValuesTests.java

@@ -132,7 +132,6 @@ public class TestPropertyValuesTests {
 				return null;
 			});
 			assertThat(System.getProperty("foo")).isEqualTo("bar1");
-			assertThat(System.getProperties()).doesNotContainKey("baz");
 		}
 		finally {
 			System.clearProperty("foo");

spring-boot/src/main/java/org/springframework/boot/context/annotation/Configurations.java

@@ -36,9 +36,9 @@ import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.util.Assert;
 
 /**
- * A set of {@link Configuration @Configuration} classes that can be registered
+ * A set of {@link Configuration @Configuration} classes that can be registered in
  * {@link ApplicationContext}. Classes can be returned from one or more
- * {@link Configurations} instance by using {@link #getClasses(Configurations[])}. The
+ * {@link Configurations} instances by using {@link #getClasses(Configurations[])}. The
  * resulting array follows the ordering rules usually applied by the
  * {@link ApplicationContext} and/or custom {@link ImportSelector} implementations.
  * <p>
@@ -57,7 +57,7 @@ public abstract class Configurations {
 	private static final Comparator<Object> COMPARATOR = OrderComparator.INSTANCE
 			.thenComparing((other) -> other.getClass().getName());
 
-	private Set<Class<?>> classes;
+	private final Set<Class<?>> classes;
 
 	protected Configurations(Collection<Class<?>> classes) {
 		Assert.notNull(classes, "Classes must not be null");
@@ -92,7 +92,7 @@ public abstract class Configurations {
 
 	/**
 	 * Merge configurations.
-	 * @param mergedClasses the merge classes
+	 * @param mergedClasses the merged classes
 	 * @return a new configurations instance (must be of the same type as this instance)
 	 */
 	protected abstract Configurations merge(Set<Class<?>> mergedClasses);

spring-boot/src/main/java/org/springframework/boot/endpoint/web/mvc/AbstractWebEndpointServletHandlerMapping.java

@@ -72,7 +72,7 @@ public abstract class AbstractWebEndpointServletHandlerMapping
 	 * operations of the given {@code webEndpoints}.
 	 * @param endpointPath the path beneath which all endpoints should be mapped
 	 * @param webEndpoints the web endpoints
-	 * @param corsConfiguration the CORS configuraton for the endpoints
+	 * @param corsConfiguration the CORS configuration for the endpoints
 	 */
 	public AbstractWebEndpointServletHandlerMapping(String endpointPath,
 			Collection<EndpointInfo<WebEndpointOperation>> webEndpoints,

spring-boot/src/main/java/org/springframework/boot/web/reactive/context/GenericReactiveWebApplicationContext.java

@@ -68,7 +68,7 @@ public class GenericReactiveWebApplicationContext
 	 * {@link org.springframework.web.context.support.ServletContextResource} in a
 	 * reactive web application.
 	 * <p>
-	 * {@link #exists()} always returns null in order to avoid exposing the whole
+	 * {@link #exists()} always returns {@code false} in order to avoid exposing the whole
 	 * classpath in a non-servlet environment.
 	 */
 	class FilteredReactiveWebContextResource extends AbstractResource {

spring-boot/src/test/java/org/springframework/boot/context/annotation/ConfigurationsTests.java

@@ -68,7 +68,6 @@ public class ConfigurationsTests {
 				Arrays.asList(String.class, Integer.class));
 		Configurations c4 = new TestConfigurations(Arrays.asList(Long.class, Byte.class));
 		Class<?>[] classes = Configurations.getClasses(c1, c2, c3, c4);
-		System.out.println(Arrays.asList(classes));
 		assertThat(classes).containsExactly(Short.class, Long.class, Byte.class,
 				InputStream.class, Integer.class, OutputStream.class, String.class);
 	}