src/java.desktop/share/classes/javax/swing/text/JTextComponent.java

@@ -4739,10 +4739,16 @@
             composedTextStart = composedTextEnd = null;
             composedTextAttribute = null;
             composedTextContent = null;
         }
 
+        if (e.getReplaceStart() >= 0) {
+            try {
+                doc.remove(e.getReplaceStart(), e.getReplaceEnd() - e.getReplaceStart());
+            } catch (BadLocationException e1) {}
+        }
+
         if (text != null) {
             text.first();
             int committedTextStartIndex = 0;
             int committedTextEndIndex = 0;