Issue #1498: Drop the implementations of the clone method.

changes.md

@@ -6,6 +6,7 @@ Changes log
       - Reuse an instance of Random class in RandomUtils. Issue #1487.
       - Complete test classes. Issue #1490.
       - Avoid non-short-circuit logic in FileClientHelper. Issue #1495.
+      - Drop the implementations of the clone method. Issue #1498.
 
 - 2.7 Milestone 2 (29-06-2025)
     - Misc

org.restlet/src/main/java/org/restlet/data/Reference.java

@@ -638,16 +638,15 @@ public Reference addSegment(String value) {
 		return this;
 	}
 
-	@Override
-	public Reference clone() {
+	public Reference copy() {
 		final Reference newRef = new Reference();
 
 		if (this.baseRef == null) {
 			newRef.baseRef = null;
 		} else if (equals(this.baseRef)) {
 			newRef.baseRef = newRef;
 		} else {
-			newRef.baseRef = this.baseRef.clone();
+			newRef.baseRef = this.baseRef.copy();
 		}
 
 		newRef.fragmentIndex = this.fragmentIndex;

org.restlet/src/main/java/org/restlet/engine/util/ImmutableDate.java

@@ -35,7 +35,7 @@
 
 	/** {@inheritDoc} */
 	@Override
-	public Object clone() {
+	public Object clone() throws UnsupportedOperationException {
 		throw new UnsupportedOperationException("ImmutableDate is immutable");
 	}