diff --git a/prism/src/userinterface/log/GUILog.java b/prism/src/userinterface/log/GUILog.java
index 5c0c1eef..4d0cce36 100644
--- a/prism/src/userinterface/log/GUILog.java
+++ b/prism/src/userinterface/log/GUILog.java
@@ -37,9 +37,9 @@ import prism.PrismLog;
 import userinterface.util.*;
 import prism.*;
 
+@SuppressWarnings("serial")
 public class GUILog extends GUIPlugin implements MouseListener, PrismSettingsListener
 {
-	
 	private PrismLog theLog;
 	private JTextArea text;
 	private JPopupMenu popupMenu;
@@ -48,7 +48,6 @@ public class GUILog extends GUIPlugin implements MouseListener, PrismSettingsLis
 	//private GUILogOptions options;
 	private GUIPrismFileFilter textFilter[];
 	private Action clearAction, saveAction;
-	private int maxTextLengthFast;
 	
 	/** Creates a new instance of GUILog */
 	public GUILog(GUIPrism pr)
diff --git a/prism/src/userinterface/model/GUIModelEditor.java b/prism/src/userinterface/model/GUIModelEditor.java
index 1a675f68..2648a5fa 100644
--- a/prism/src/userinterface/model/GUIModelEditor.java
+++ b/prism/src/userinterface/model/GUIModelEditor.java
@@ -32,6 +32,7 @@ import javax.swing.*;
 import prism.PrismLangException;
 import userinterface.util.GUIUndoManager;
 
+@SuppressWarnings("serial")
 public abstract class GUIModelEditor extends JPanel
 {    
     public abstract String getParseText();