dedicated to DennisBergkamp

i tried to create a small workaround for the problem, but because i don't get the same error as you, could you try it, please?

.gitattributes

@@ -198,6 +198,7 @@ src/forge/Time.java svneol=native#text/plain
 src/forge/UndoCommand.java svneol=native#text/plain
 src/forge/Wait.java svneol=native#text/plain
 src/forge/WinLose.java svneol=native#text/plain
+src/forge/_ObjectInputStream.java svneol=native#text/plain
 src/forge/error/ErrorViewer.java svneol=native#text/plain
 src/forge/error/ExceptionHandler.java -text svneol=native#text/plain
 src/forge/gui/ForgeAction.java svneol=native#text/plain

src/forge/DeckIO.java

@@ -1,9 +1,7 @@
+
 package forge;
 
 
-
-
-
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -168,7 +166,7 @@ public class DeckIO {
 //~
             if(!file.exists()) return;
             
-            ObjectInputStream in = new ObjectInputStream(new FileInputStream(file));
+            ObjectInputStream in = new _ObjectInputStream(new FileInputStream(file));
             
             deckList = (ArrayList<Deck>) in.readObject();
             boosterMap = (Map<String, Deck[]>) in.readObject();
@@ -183,9 +181,9 @@ public class DeckIO {
     private void writeFile() {
         try {
 //~
-      if(file == null) {
+            if(file == null) {
-        return;
+                return;
-      }
+            }
 //~
             if(!file.exists()) file.createNewFile();
             

src/forge/Gui_DeckEditor_Menu.java

@@ -1,4 +1,7 @@
+
 package forge;
+
+
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.io.File;
@@ -23,20 +26,20 @@ import forge.error.ErrorViewer;
 import forge.properties.ForgeProps;
 import forge.properties.NewConstants;
 
-interface DeckDisplay
-{
-  public void updateDisplay(CardList top, CardList bottom);
 
-  //top shows available card pool
+interface DeckDisplay {
-  //if constructed, top shows all cards
+    public void updateDisplay(CardList top, CardList bottom);
-  //if sealed, top shows 5 booster packs
-  //if draft, top shows cards that were chosen
-  public CardList getTop();
     
-  //bottom shows cards that the user has chosen for his library
+    //top shows available card pool
-  public CardList getBottom();
+    //if constructed, top shows all cards
+    //if sealed, top shows 5 booster packs
+    //if draft, top shows cards that were chosen
+    public CardList getTop();
     
-  public void setTitle(String message);
+    //bottom shows cards that the user has chosen for his library
+    public CardList getBottom();
+    
+    public void setTitle(String message);
 }
 
 public class Gui_DeckEditor_Menu extends JMenuBar implements NewConstants {
@@ -326,7 +329,7 @@ public class Gui_DeckEditor_Menu extends JMenuBar implements NewConstants {
         Object check = null;
         
         try {
-            ObjectInputStream in = new ObjectInputStream(new FileInputStream(file));
+            ObjectInputStream in = new _ObjectInputStream(new FileInputStream(file));
             check = in.readObject();
             
             in.close();

src/forge/Gui_Quest_DeckEditor_Menu.java

@@ -1,4 +1,7 @@
+
 package forge;
+
+
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.io.File;
@@ -261,7 +264,7 @@ public class Gui_Quest_DeckEditor_Menu extends JMenuBar {
         Object check = null;
         
         try {
-            ObjectInputStream in = new ObjectInputStream(new FileInputStream(file));
+            ObjectInputStream in = new _ObjectInputStream(new FileInputStream(file));
             check = in.readObject();
             
             in.close();

src/forge/IO.java

@@ -1,4 +1,7 @@
+
 package forge;
+
+
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -36,7 +39,7 @@ public class IO {
     // Map has unchecked cast
     private void readMap() {
         try {
-            ObjectInputStream in = new ObjectInputStream(new FileInputStream(file));
+            ObjectInputStream in = new _ObjectInputStream(new FileInputStream(file));
             map = (Map<String, Serializable>) in.readObject();
             in.close();
         } catch(Exception ex) {

src/forge/NewIO.java

@@ -1,4 +1,7 @@
+
 package forge;
+
+
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -63,7 +66,7 @@ public class NewIO {
     
     private ObjectInputStream getReader() {
         try {
-            return new ObjectInputStream(new FileInputStream(file));
+            return new _ObjectInputStream(new FileInputStream(file));
         } catch(IOException ex) {
             ErrorViewer.showError(ex);
             throw new RuntimeException("IO : getReader() - error - " + ex);

src/forge/QuestData.java

@@ -195,7 +195,7 @@ public class QuestData implements NewConstants {
     static public QuestData loadData() {
         try {
             //read file "questData"
-            ObjectInputStream in = new ObjectInputStream(new FileInputStream(ForgeProps.getFile(QUEST.DATA)));
+            ObjectInputStream in = new _ObjectInputStream(new FileInputStream(ForgeProps.getFile(QUEST.DATA)));
             Object o = in.readObject();
             in.close();
             

src/forge/_ObjectInputStream.java

@@ -0,0 +1,39 @@
+/**
+ * _ObjectInputStream.java
+ * 
+ * Created on 29.10.2009
+ */
+
+package forge;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.ObjectInputStream;
+
+
+/**
+ * The class _ObjectInputStream.
+ * 
+ * @version V0.0 29.10.2009
+ * @author Clemens Koza
+ */
+public class _ObjectInputStream extends ObjectInputStream {
+    public _ObjectInputStream() throws IOException {
+        super();
+        enableResolveObject(true);
+    }
+    
+    public _ObjectInputStream(InputStream is) throws IOException {
+        super(is);
+        enableResolveObject(true);
+    }
+    
+    @Override
+    protected Object resolveObject(Object obj) throws IOException {
+        Class<?> c = obj.getClass().getComponentType();
+        if(c != null && "Deck".equals(c.getName())) {
+            return new Deck[((Object[]) obj).length];
+        } else return obj;
+    }
+}