more cleanup

src/main/java/cc/fascinated/util/Tuple.java

@@ -0,0 +1,18 @@
+package cc.fascinated.util;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter @AllArgsConstructor
+public class Tuple<L, R> {
+
+    /**
+     * The left value of the tuple.
+     */
+    private final L left;
+
+    /**
+     * The right value of the tuple.
+     */
+    private final R right;
+}

src/main/java/cc/fascinated/util/UUIDUtils.java

@@ -1,5 +1,8 @@
 package cc.fascinated.util;
 
+import lombok.experimental.UtilityClass;
+
+@UtilityClass
 public class UUIDUtils {
 
     /**

src/main/java/cc/fascinated/util/WebRequest.java

@@ -1,10 +1,12 @@
 package cc.fascinated.util;
 
+import lombok.experimental.UtilityClass;
 import org.springframework.http.ResponseEntity;
 import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
 import org.springframework.web.client.HttpClientErrorException;
 import org.springframework.web.client.RestClient;
 
+@UtilityClass
 public class WebRequest {
 
     /**