Merge pull request #15873 from izeye

* pr/15873:
  Polish

CONTRIBUTING.adoc

@@ -181,7 +181,7 @@ work with m2eclipse, we provide an additional Eclipse plugin that you can instal
 ===== Install the Spring Formatter plugin
 * Select "`Help`" -> "`Install New Software`".
 * Add `https://dl.bintray.com/spring/javaformat-eclipse/` as a site.
-* Install "Spring Java Format"
+* Install "Spring Java Format".
 
 NOTE: The plugin is optional. Projects can be imported without the plugins, your code
 changes just won't be automatically formatted.

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/export/dynatrace/DynatracePropertiesConfigAdapter.java

@@ -23,7 +23,7 @@ import org.springframework.boot.actuate.autoconfigure.metrics.export.properties.
 /**
  * Adapter to convert {@link DynatraceProperties} to a {@link DynatraceConfig}.
  *
- * @author Andy Wilkinson *
+ * @author Andy Wilkinson
  */
 class DynatracePropertiesConfigAdapter
 		extends StepRegistryPropertiesConfigAdapter<DynatraceProperties>

spring-boot-project/spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -6395,7 +6395,7 @@ configured as it requires an `AsyncTaskExecutor` implementation (named
 an `AsyncConfigurer` wrapping your custom `Executor`.
 
 The auto-configured `TaskExecutorBuilder` allows you to easily create instances that
-reproduces what the auto-configuration does by default.
+reproduce what the auto-configuration does by default.
 ====
 
 The thread pool uses 8 core threads that can grow and shrink according to the load. Those

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/netty/SslServerCustomizer.java

@@ -152,9 +152,7 @@ public class SslServerCustomizer implements NettyServerCustomizer {
 		if (resource == null) {
 			return null;
 		}
-		else {
-			return loadStore(type, provider, resource, password);
-		}
+		return loadStore(type, provider, resource, password);
 	}
 
 	private KeyStore loadStore(String type, String provider, String resource,

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/embedded/undertow/SslBuilderCustomizer.java

@@ -182,9 +182,7 @@ class SslBuilderCustomizer implements UndertowBuilderCustomizer {
 		if (resource == null) {
 			return null;
 		}
-		else {
-			return loadStore(type, provider, resource, password);
-		}
+		return loadStore(type, provider, resource, password);
 	}
 
 	private KeyStore loadStore(String type, String provider, String resource,

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/bind/CollectionBinderTests.java

@@ -450,8 +450,8 @@ public class CollectionBinderTests {
 		MockConfigurationPropertySource source = new MockConfigurationPropertySource();
 		source.put("foo.values[0]", "foo-bar,bar-baz");
 		this.sources.add(source);
-		BeanWithEnumsetCollection result = this.binder
-				.bind("foo", Bindable.of(BeanWithEnumsetCollection.class)).get();
+		BeanWithEnumSetCollection result = this.binder
+				.bind("foo", Bindable.of(BeanWithEnumSetCollection.class)).get();
 		assertThat(result.getValues().get(0)).containsExactly(ExampleEnum.FOO_BAR,
 				ExampleEnum.BAR_BAZ);
 	}
@@ -574,7 +574,7 @@ public class CollectionBinderTests {
 
 	}
 
-	public static class BeanWithEnumsetCollection {
+	public static class BeanWithEnumSetCollection {
 
 		private List<EnumSet<ExampleEnum>> values;
 

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/web/embedded/jetty/SslServerCustomizerTests.java

@@ -82,8 +82,7 @@ public class SslServerCustomizerTests {
 	}
 
 	@Test
-	public void configureSslWhenSslIsEnabledWithNoKeyStoreThrowsWebServerException()
-			throws Exception {
+	public void configureSslWhenSslIsEnabledWithNoKeyStoreThrowsWebServerException() {
 		Ssl ssl = new Ssl();
 		SslServerCustomizer customizer = new SslServerCustomizer(null, ssl, null, null);
 		assertThatExceptionOfType(Exception.class)