Fix method order checkstyle issue

See gh-20525

Author: dreis2211

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/invoker/cache/CachingOperationInvoker.java

@@ -177,15 +177,6 @@ private CacheKey(ApiVersion apiVersion, Principal principal) {
 			this.apiVersion = apiVersion;
 		}
 
-		@Override
-		public int hashCode() {
-			final int prime = 31;
-			int result = 1;
-			result = prime * result + this.apiVersion.hashCode();
-			result = prime * result + ((this.principal == null) ? 0 : this.principal.hashCode());
-			return result;
-		}
-
 		@Override
 		public boolean equals(Object obj) {
 			if (this == obj) {
@@ -212,6 +203,15 @@ else if (!this.principal.equals(other.principal)) {
 			return true;
 		}
 
+		@Override
+		public int hashCode() {
+			final int prime = 31;
+			int result = 1;
+			result = prime * result + this.apiVersion.hashCode();
+			result = prime * result + ((this.principal == null) ? 0 : this.principal.hashCode());
+			return result;
+		}
+
 	}
 
 }