strange characters in output files bug correction

dockingvl/src/main/java/fr/soleil/docking/vl/VlDockDockingManager.java

@@ -9,11 +9,12 @@ package fr.soleil.docking.vl;
 
 import java.awt.Color;
 import java.beans.PropertyChangeEvent;
+import java.io.BufferedOutputStream;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
+import java.io.OutputStream;
 
 import javax.swing.JComponent;
 import javax.swing.UIManager;
@@ -122,17 +123,20 @@ public class VlDockDockingManager extends ADockingManager {
         if ((perspective != null) && (dockingArea instanceof SoleilDockingDesktop)) {
             SoleilDockingDesktop mainDockingDesktop = (SoleilDockingDesktop) dockingArea;
             ByteArrayOutputStream baos = null;
-            ObjectOutputStream ous = null;
+            OutputStream ous = null;
             baos = new ByteArrayOutputStream();
             try {
-                ous = new ObjectOutputStream(baos);
+                // ous = new ObjectOutputStream(baos);
+                ous = new BufferedOutputStream(baos);
                 mainDockingDesktop.writeXML(ous);
             } catch (IOException e) {
                 dockingException = new DockingException(getClass().getSimpleName()
                         + ".updatePerspective(): Unexpected Error", e);
             } finally {
                 try {
-                    ous.close();
+                    if (ous != null) {
+                        ous.close();
+                    }
                     // Actually there is no effect to close baos ...
                 } catch (IOException e) {
                     if (dockingException == null) {