Update changelog

pmd-core/src/main/resources/rulesets/releases/540.xml

@@ -10,6 +10,7 @@ This ruleset contains links to rules that are new in PMD v5.4.0
 
     <rule ref="rulesets/java/basic.xml/SimplifiedTernary"/>
     <rule ref="rulesets/java/clone.xml/CloneMethodReturnTypeMustMatchClassName"/>
+    <rule ref="rulesets/java/clone.xml/CloneMethodMustBePublic"/>
     <rule ref="rulesets/java/comments.xml/CommentDefaultAccessModifier"/>
     <rule ref="rulesets/java/design.xml/SingleMethodSingleton"/>
     <rule ref="rulesets/java/design.xml/SingletonClassReturningNewInstance"/>

src/site/markdown/overview/changelog.md

@@ -29,6 +29,9 @@
     of this, when `this` alone would be unique. E.g. use just `this` instead of `Foo.this`.
 *   New Rule: rulesets/java/clone.xml/CloneMethodReturnTypeMustMatchClassName: If a class implements cloneable
     the return type of the method clone() must be the class name.
+*   New Rule: rulesets/java/clone.xml/CloneMethodMustBePublic: The java manual says "By convention,
+    classes that implement the cloneable interface should override Object.clone (which is protected)
+    with a public method."
 
 **Modified/Deprecated Rules:**
 
@@ -56,6 +59,7 @@
 *   [#59](https://github.com/pmd/pmd/pull/59): Add check to Boxed booleans in UseAssertTrueInsteadOfAssertEquals rule
 *   [#60](https://github.com/pmd/pmd/pull/60): Add UselessQualifiedThisRule
 *   [#61](https://github.com/pmd/pmd/pull/61): Add CloneMethodReturnTypeMustMatchClassName rule
+*   [#62](https://github.com/pmd/pmd/pull/62): Add CloneMethodMustBePublic rule
 
 **Bugfixes:**