diff --git a/src/opensesim/gui/AssetEditor/AssetEditorDialog.java b/src/opensesim/gui/AssetEditor/AssetEditorDialog.java
index e6c7757..0893920 100644
--- a/src/opensesim/gui/AssetEditor/AssetEditorDialog.java
+++ b/src/opensesim/gui/AssetEditor/AssetEditorDialog.java
@@ -30,19 +30,15 @@ import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.MapperFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.node.ObjectNode;
 import java.awt.Dialog;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import javax.swing.InputVerifier;
-import javax.swing.JComponent;
-import javax.swing.JDialog;
-import javax.swing.JTextField;
 import opensesim.AbstractAsset;
 import opensesim.World;
 import opensesim.gui.EscDialog;
 import opensesim.gui.Globals;
-import opensesim.sesim.Assets.BasicAsset;
 import opensesim.util.IDGenerator.Id;
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -208,12 +204,15 @@ public class AssetEditorDialog extends EscDialog {
 
         String vs;
         try {
+
             vs = mapper.writeValueAsString(dialog.assetEditorPanel);
             System.out.print(vs);
         } catch (JsonProcessingException ex) {
             Logger.getLogger(AssetEditorDialog.class.getName()).log(Level.SEVERE, null, ex);
         }
 
+        ObjectNode n = mapper.valueToTree(dialog.assetEditorPanel);
+
         return dialog.newId;
     }
 
diff --git a/src/opensesim/gui/AssetEditor/AssetListPanel.java b/src/opensesim/gui/AssetEditor/AssetListPanel.java
index 194841d..f02d23f 100644
--- a/src/opensesim/gui/AssetEditor/AssetListPanel.java
+++ b/src/opensesim/gui/AssetEditor/AssetListPanel.java
@@ -25,8 +25,14 @@
  */
 package opensesim.gui.AssetEditor;
 
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
 import java.util.AbstractMap;
+import java.util.Collection;
 import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 import javax.swing.table.AbstractTableModel;
 import javax.swing.table.DefaultTableModel;
 import javax.swing.table.TableModel;
@@ -35,6 +41,7 @@ import opensesim.sesim.Assets.BasicAsset;
 import opensesim.World;
 import opensesim.gui.Globals;
 import opensesim.util.IDGenerator.Id;
+import opensesim.util.SeSimObjectMapper;
 
 /**
  *
@@ -72,6 +79,7 @@ public class AssetListPanel extends javax.swing.JPanel {
             return;
         }
         m.setRowCount(0);
+
         for (AbstractAsset a : world.getAssetCollection()) {
             m.addRow(new Object[]{
                 a.getID(),
@@ -79,12 +87,23 @@ public class AssetListPanel extends javax.swing.JPanel {
                 a.getName(),
                 a.getTypeName()
             });
-
+ 
         }
 
+        Collection ac; 
+       ObjectMapper om = new ObjectMapper();
+        om.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
+        try {
+            String s = om.writeValueAsString(world.getAssetCollection());
+            System.out.printf("MyValues %s", s);
+        } catch (JsonProcessingException ex) {
+            Logger.getLogger(AssetListPanel.class.getName()).log(Level.SEVERE, null, ex);
+        }
+        
+
     }
 
-    public TableModel getModel() {
+    private TableModel getModel() {
 
         class TModel extends DefaultTableModel {
 
diff --git a/src/opensesim/util/SeSimObjectMapper.java b/src/opensesim/util/SeSimObjectMapper.java
new file mode 100644
index 0000000..65b4f61
--- /dev/null
+++ b/src/opensesim/util/SeSimObjectMapper.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2018, 7u83 <7u83@mail.ru>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ *   list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+package opensesim.util;
+
+import com.fasterxml.jackson.databind.MapperFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+/**
+ *
+ * @author 7u83 <7u83@mail.ru>
+ */
+public final class SeSimObjectMapper extends ObjectMapper {
+
+    Object object;
+
+    public SeSimObjectMapper(Object o) {
+        super();
+        object = o;
+        // disable auto detection
+        disable(MapperFeature.AUTO_DETECT_CREATORS,
+                MapperFeature.AUTO_DETECT_FIELDS,
+                MapperFeature.AUTO_DETECT_GETTERS,
+                MapperFeature.AUTO_DETECT_IS_GETTERS);
+        // if you want to prevent an exception when classes have no annotated properties
+        disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
+    }
+
+    ObjectNode getObjectNode() {
+        return valueToTree(object);
+    }
+
+}