Fix checkstyle javadoc issues

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

See gh-13932

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);
@@ -66,9 +66,9 @@ public class AuditEvent implements Serializable {
 	/**
 	 * 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));
@@ -76,10 +76,10 @@ public class AuditEvent implements Serializable {
 
 	/**
 	 * 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 @@ import org.springframework.util.Assert;
 /**
  * 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 @@ import org.springframework.util.Assert;
  * 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 @@ import org.springframework.boot.actuate.endpoint.Operation;
 /**
  * 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 @@ import org.springframework.core.annotation.AnnotationAttributes;
  * 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 @@ import org.springframework.util.StringUtils;
  * {@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

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/cache/CacheMeterBinderProvider.java

@@ -24,7 +24,7 @@ import org.springframework.cache.Cache;
 /**
  * Provide a {@link MeterBinder} based on a {@link Cache}.
  *
- * @param <C> The cache type
+ * @param <C> the cache type
  * @author Stephane Nicoll
  * @since 2.0.0
  */

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/web/reactive/server/RouterFunctionMetrics.java

@@ -69,8 +69,8 @@ public class RouterFunctionMetrics {
 	/**
 	 * Returns a new {@link RouterFunctionMetrics} instance with the specified default
 	 * tags.
-	 * @param defaultTags Generate a list of tags to apply to the timer.
-	 * {@code ServerResponse} may be null.
+	 * @param defaultTags function to generate a list of tags to apply to the timer
+	 * {@code ServerResponse} may be null
 	 * @return {@code this} for further configuration
 	 */
 	public RouterFunctionMetrics defaultTags(
@@ -94,8 +94,8 @@ public class RouterFunctionMetrics {
 
 	/**
 	 * Creates a {@code method} tag from the method of the given {@code request}.
-	 * @param request The HTTP request.
-	 * @return A "method" tag whose value is a capitalized method (e.g. GET).
+	 * @param request the HTTP request
+	 * @return a "method" tag whose value is a capitalized method (e.g. GET)
 	 */
 	public static Tag getMethodTag(ServerRequest request) {
 		return Tag.of("method", request.method().toString());
@@ -103,8 +103,8 @@ public class RouterFunctionMetrics {
 
 	/**
 	 * Creates a {@code status} tag from the status of the given {@code response}.
-	 * @param response The HTTP response.
-	 * @return A "status" tag whose value is the numeric status code.
+	 * @param response the HTTP response
+	 * @return a "status" tag whose value is the numeric status code
 	 */
 	public static Tag getStatusTag(ServerResponse response) {
 		return Tag.of("status", response.statusCode().toString());