--- a/src/luan/modules/swing/Document.luan	Wed Apr 02 21:18:25 2025 -0600
+++ b/src/luan/modules/swing/Document.luan	Thu Apr 03 08:46:30 2025 -0600
@@ -1,7 +1,7 @@
 local Luan = require "luan:Luan.luan"
 local error = Luan.error
 require "java"
-local LuanUndoManager = require "java:luan.modules.swing.LuanUndoManager"
+local UndoManagerLuan = require "java:luan.modules.swing.UndoManagerLuan"
 local Logging = require "luan:logging/Logging.luan"
 local logger = Logging.logger "swing/Document"
 
@@ -10,7 +10,7 @@
 
 function Document.new(jdocument)
 	local document = { java = jdocument }
-	local undo = LuanUndoManager.new()
+	local undo = UndoManagerLuan.new()
 	jdocument.addUndoableEditListener(undo)
 	jdocument.putProperty("undo",undo);
 	document.undo = undo.undo

--- a/src/luan/modules/swing/LuanUndoManager.java	Wed Apr 02 21:18:25 2025 -0600
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,67 +0,0 @@
-package luan.modules.swing;
-
-import java.util.WeakHashMap;
-import javax.swing.event.UndoableEditListener;
-import javax.swing.event.UndoableEditEvent;
-import javax.swing.undo.UndoManager;
-import javax.swing.undo.UndoableEdit;
-import javax.swing.undo.CannotUndoException;
-import javax.swing.undo.CannotRedoException;
-import goodjava.util.GoodUtils;
-import luan.Luan;
-import luan.LuanFunction;
-import luan.LuanException;
-import luan.LuanRuntimeException;
-import goodjava.logging.Logger;
-import goodjava.logging.LoggerFactory;
-
-
-public final class LuanUndoManager extends UndoManager {
-	private static final Logger logger = LoggerFactory.getLogger(LuanUndoManager.class);
-
-	private final WeakHashMap<LuanFunction,Boolean> map = new WeakHashMap<LuanFunction,Boolean>();
-	private final Luan luan;
-	private UndoableEdit unedited = null;
-
-	public LuanUndoManager(Luan luan) {
-		this.luan = luan;
-	}
-
-	private void notifyListeners() {
-		for( LuanFunction fn : map.keySet() ) {
-			try {
-				fn.call(luan);
-			} catch(LuanException e) {
-				throw new LuanRuntimeException(e);
-			}
-		}
-	}
-
-	@Override public void undoableEditHappened(UndoableEditEvent event) {
-		super.undoableEditHappened(event);
-		notifyListeners();
-	}
-
-	@Override public void undo() throws CannotUndoException {
-		super.undo();
-		notifyListeners();
-	}
-
-	@Override public void redo() throws CannotRedoException {
-		super.redo();
-		notifyListeners();
-	}
-
-	public void addListener(LuanFunction fn) {
-		map.put(fn,Boolean.TRUE);
-	}
-
-	public boolean isUnedited() {
-		return GoodUtils.equal(unedited,editToBeUndone());
-	}
-
-	public void setUnedited() {
-		unedited = editToBeUndone();
-		notifyListeners();
-	}
-}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/luan/modules/swing/UndoManagerLuan.java	Thu Apr 03 08:46:30 2025 -0600
@@ -0,0 +1,67 @@
+package luan.modules.swing;
+
+import java.util.WeakHashMap;
+import javax.swing.event.UndoableEditListener;
+import javax.swing.event.UndoableEditEvent;
+import javax.swing.undo.UndoManager;
+import javax.swing.undo.UndoableEdit;
+import javax.swing.undo.CannotUndoException;
+import javax.swing.undo.CannotRedoException;
+import goodjava.util.GoodUtils;
+import luan.Luan;
+import luan.LuanFunction;
+import luan.LuanException;
+import luan.LuanRuntimeException;
+import goodjava.logging.Logger;
+import goodjava.logging.LoggerFactory;
+
+
+public final class UndoManagerLuan extends UndoManager {
+	private static final Logger logger = LoggerFactory.getLogger(UndoManagerLuan.class);
+
+	private final WeakHashMap<LuanFunction,Boolean> map = new WeakHashMap<LuanFunction,Boolean>();
+	private final Luan luan;
+	private UndoableEdit unedited = null;
+
+	public UndoManagerLuan(Luan luan) {
+		this.luan = luan;
+	}
+
+	private void notifyListeners() {
+		for( LuanFunction fn : map.keySet() ) {
+			try {
+				fn.call(luan);
+			} catch(LuanException e) {
+				throw new LuanRuntimeException(e);
+			}
+		}
+	}
+
+	@Override public void undoableEditHappened(UndoableEditEvent event) {
+		super.undoableEditHappened(event);
+		notifyListeners();
+	}
+
+	@Override public void undo() throws CannotUndoException {
+		super.undo();
+		notifyListeners();
+	}
+
+	@Override public void redo() throws CannotRedoException {
+		super.redo();
+		notifyListeners();
+	}
+
+	public void addListener(LuanFunction fn) {
+		map.put(fn,Boolean.TRUE);
+	}
+
+	public boolean isUnedited() {
+		return GoodUtils.equal(unedited,editToBeUndone());
+	}
+
+	public void setUnedited() {
+		unedited = editToBeUndone();
+		notifyListeners();
+	}
+}