diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 2e89874b5..c67b46de6 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -42,6 +42,7 @@
      <action type="update" dev="ggregory" due-to="PMD, Gary Gregory">Fix PMD UnnecessaryFullyQualifiedName in IndexUtils.</action>
      <action type="update" dev="ggregory" due-to="PMD, Gary Gregory">Fix PMD UnnecessaryFullyQualifiedName in AbstractLinkedMap.</action>
      <action type="update" dev="ggregory" due-to="PMD, Gary Gregory">Fix PMD UnnecessaryFullyQualifiedName in LinkIterator.</action>
+     <action type="update" dev="ggregory" due-to="PMD, Gary Gregory">Fix PMD UnnecessaryFullyQualifiedName in ReferenceMapIterator.</action>
      <!-- UPDATE -->
      <action type="update" dev="ggregory" due-to="Dependabot">Bump org.apache.commons:commons-parent from 67 to 69 #473.</action>
      <action type="update" dev="ggregory" due-to="Dependabot">Bump tests commons-io:commons-io from 2.16.0 to 2.16.1 #475.</action>
diff --git a/src/main/java/org/apache/commons/collections4/map/AbstractReferenceMap.java b/src/main/java/org/apache/commons/collections4/map/AbstractReferenceMap.java
index 7202eadf9..e08302356 100644
--- a/src/main/java/org/apache/commons/collections4/map/AbstractReferenceMap.java
+++ b/src/main/java/org/apache/commons/collections4/map/AbstractReferenceMap.java
@@ -465,7 +465,7 @@ public abstract class AbstractReferenceMap<K, V> extends AbstractHashedMap<K, V>
         public K getKey() {
             final HashEntry<K, V> current = currentEntry();
             if (current == null) {
-                throw new IllegalStateException(AbstractHashedMap.GETKEY_INVALID);
+                throw new IllegalStateException(GETKEY_INVALID);
             }
             return current.getKey();
         }
@@ -474,7 +474,7 @@ public abstract class AbstractReferenceMap<K, V> extends AbstractHashedMap<K, V>
         public V getValue() {
             final HashEntry<K, V> current = currentEntry();
             if (current == null) {
-                throw new IllegalStateException(AbstractHashedMap.GETVALUE_INVALID);
+                throw new IllegalStateException(GETVALUE_INVALID);
             }
             return current.getValue();
         }
@@ -488,7 +488,7 @@ public abstract class AbstractReferenceMap<K, V> extends AbstractHashedMap<K, V>
         public V setValue(final V value) {
             final HashEntry<K, V> current = currentEntry();
             if (current == null) {
-                throw new IllegalStateException(AbstractHashedMap.SETVALUE_INVALID);
+                throw new IllegalStateException(SETVALUE_INVALID);
             }
             return current.setValue(value);
         }