Fix checkstyle javadoc issues

Fix checkstyle issues in javadoc following the spring-javaformat
upgrade.

See gh-13932

Author: philwebb

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/endpoint/ExposeExcludePropertyEndpointFilter.java

@@ -36,7 +36,7 @@
  * {@link EndpointFilter} that will filter endpoints based on {@code include} and
  * {@code exclude} properties.
  *
- * @param <E> The endpoint type
+ * @param <E> the endpoint type
  * @author Phillip Webb
  * @since 2.0.0
  */

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/MeterRegistryCustomizer.java

@@ -27,7 +27,7 @@
  * the registry.
  *
  * @author Jon Schneider
- * @param <T> The registry type to customize
+ * @param <T> the registry type to customize
  * @since 2.0.0
  */
 @FunctionalInterface

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

@@ -24,7 +24,7 @@
 /**
  * Base class for properties to config adapters.
  *
- * @param <T> The properties type
+ * @param <T> the properties type
  * @author Phillip Webb
  * @author Nikolay Rybak
  * @since 2.0.0

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

@@ -23,7 +23,7 @@
 /**
  * Base class for {@link StepRegistryProperties} to {@link StepRegistryConfig} adapters.
  *
- * @param <T> The properties type
+ * @param <T> the properties type
  * @author Jon Schneider
  * @author Phillip Webb
  * @since 2.0.0

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/audit/AuditEvent.java

@@ -55,9 +55,9 @@ public class AuditEvent implements Serializable {
 
 	/**
 	 * Create a new audit event for the current time.
-	 * @param principal The user principal responsible
+	 * @param principal the user principal responsible
 	 * @param type the event type
-	 * @param data The event data
+	 * @param data the event data
 	 */
 	public AuditEvent(String principal, String type, Map<String, Object> data) {
 		this(Instant.now(), principal, type, data);
@@ -66,20 +66,20 @@ public AuditEvent(String principal, String type, Map<String, Object> data) {
 	/**
 	 * Create a new audit event for the current time from data provided as name-value
 	 * pairs.
-	 * @param principal The user principal responsible
+	 * @param principal the user principal responsible
 	 * @param type the event type
-	 * @param data The event data in the form 'key=value' or simply 'key'
+	 * @param data the event data in the form 'key=value' or simply 'key'
 	 */
 	public AuditEvent(String principal, String type, String... data) {
 		this(Instant.now(), principal, type, convert(data));
 	}
 
 	/**
 	 * Create a new audit event.
-	 * @param timestamp The date/time of the event
-	 * @param principal The user principal responsible
+	 * @param timestamp the date/time of the event
+	 * @param principal the user principal responsible
 	 * @param type the event type
-	 * @param data The event data
+	 * @param data the event data
 	 */
 	public AuditEvent(Instant timestamp, String principal, String type,
 			Map<String, Object> data) {

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/AbstractExposableEndpoint.java

@@ -26,7 +26,7 @@
 /**
  * Abstract base class for {@link ExposableEndpoint} implementations.
  *
- * @param <O> The operation type.
+ * @param <O> the operation type.
  * @author Phillip Webb
  * @since 2.0.0
  */

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/annotation/AbstractDiscoveredEndpoint.java

@@ -28,7 +28,7 @@
  * Abstract base class for {@link ExposableEndpoint endpoints} discovered by a
  * {@link EndpointDiscoverer}.
  *
- * @param <O> The operation type
+ * @param <O> the operation type
  * @author Phillip Webb
  * @since 2.0.0
  */

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/annotation/DiscoveredEndpoint.java

@@ -22,7 +22,7 @@
 /**
  * An {@link ExposableEndpoint endpoint} discovered by an {@link EndpointDiscoverer}.
  *
- * @param <O> The operation type
+ * @param <O> the operation type
  * @author Phillip Webb
  * @since 2.0.0
  */

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/annotation/DiscoveredOperationsFactory.java

@@ -40,7 +40,7 @@
  * Factory to create an {@link Operation} for annotated methods on an
  * {@link Endpoint @Endpoint} or {@link EndpointExtension @EndpointExtension}.
  *
- * @param <O> The operation type
+ * @param <O> the operation type
  * @author Andy Wilkinson
  * @author Stephane Nicoll
  * @author Phillip Webb

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/annotation/EndpointDiscoverer.java

@@ -54,8 +54,8 @@
  * {@link Endpoint @Endpoint} beans and {@link EndpointExtension @EndpointExtension} beans
  * in an application context.
  *
- * @param <E> The endpoint type
- * @param <O> The operation type
+ * @param <E> the endpoint type
+ * @param <O> the operation type
  * @author Andy Wilkinson
  * @author Stephane Nicoll
  * @author Phillip Webb