I am facing the same issue.
Any resolution?
--- In flexcoders@yahoogroups.com, " " <[EMAIL PROTECTED]> wrote:
>
> Any Clues ?
>
> ---------- Forwarded message ----------
> From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> Date: Jan 15, 2007 4:57 PM
> Subject: Urgent :: Custom Serialization exception
> To: flexcoders@yahoogroups.com
>
> I am using Custom Serialization to serialize my Java Object
(TreeNode class)
> "recursively" to ActionScript.
> But this fails giving the following exception:
>
> ArgumentError: Error #2004: One of the parameters is invalid.
> at flash.utils::ObjectInput/readObject()
> at com.flex.dao::TreeNode/readExternal()
>
> (mx.messaging.messages::ErrorMessage)#0
> body = (Object)#1
> clientId = (null)
> correlationId = "5D934A88-B385-627D-2445-258088A878CA"
> destination = ""
> extendedData = (null)
> faultCode = "Server.Acknowledge.Failed"
> faultDetail = "Was expecting
mx.messaging.messages.AcknowledgeMessage, but
> received null"
> faultString = "Didn't receive an acknowledge message"
> headers = (Object)#2
> messageId = "983E8914-DDAC-1ECA-C02A-2580CCD4A40F"
> rootCause = (null)
> timestamp = 0
> timeToLive = 0
>
>
> =====================================================
> The code of "ActionScript" and "Java" TreeNode classes is as under:
>
> ======= ActionScript ============
> package com.flex.dao
> {
> import mx.collections.ArrayCollection;
> import flash.utils.IExternalizable;
> import flash.utils.IDataInput;
> import flash.utils.IDataOutput;
> import mx.controls.Alert;
>
> [RemoteClass(alias=" com.java.dao.TreeNode")]
> public class TreeNode implements IExternalizable
> {
> public var name : String;
> public var id : int;
> public var type : int;
> public var children : ArrayCollection;
> public var data : Object;
>
> public function readExternal(input:IDataInput) : void
> {
> id = input.readInt();
> name = input.readUTF();
> type = input.readInt();
>
> var childCount : int = input.readInt();
> if(childCount != 0)
> {
> children = new ArrayCollection();
> for(var i:int = 0; i<childCount;i++)
> {
> var obj : Object = input.readObject();
> children.addItem(obj);
> }
> }
> var hasData : int = input.readInt();
> if(hasData != 0)
> data = input.readObject();
> }
>
> public function writeExternal(output:IDataOutput) : void
> {
> output.writeInt(id);
> output.writeUTF(name);
> output.writeInt(type);
> if(children != null)
> {
> output.writeInt(children.length);
> for(var i:int = 0; i<children.length ;i++)
> output.writeObject(TreeNode(children.getItemAt
(i)));
> }
> else
> output.writeInt(0);
> if(data != null)
> {
> output.writeInt(1);
> output.writeObject(data);
> }
> else
> output.writeInt(0);
> }
>
> }
> }
>
>
> ======== Java ==========
> public class TreeNode implements Externalizable
>
> {
> public List children; //list of TreeNode
> public Object data;
>
>
> public TreeNode()
> {
> }
>
> public TreeNode(int id, String name, int type) {
> super(id, name, type);
> children = new ArrayList();
>
> }
>
>
> public void addChild(TreeNode child) {
> children.add(child);
> }
>
>
> public void writeExternal(ObjectOutput objectOutput) throws
IOException
> {
> objectOutput.writeInt(id);
> objectOutput.writeUTF(name);
> objectOutput.writeInt(type);
>
> if(children != null && children.size() > 0)
> {
> System.out.println(name + " :: "+children.size());
> objectOutput.writeInt(children.size());
> for(int i = 0; i< children.size();i++)
> objectOutput.writeObject(children.get (i));
> }
> else
> objectOutput.writeInt(0);
> if(data != null)
> {
> objectOutput.writeInt(1);
> objectOutput.writeObject(data);
> }
> else
> objectOutput.writeInt(0);
> }
>
> public void readExternal(ObjectInput objectInput) throws
IOException,
> ClassNotFoundException
> {
> id = objectInput.readInt();
> name = objectInput.readUTF();
> type = objectInput.readInt();
>
> int childCount = objectInput.readInt();
> if(childCount != 0)
> {
> children = new ArrayList();
> for(int i=0; i<childCount; i++)
> children.add((TreeNode)objectInput.readObject());
>
> }
> int hasData = objectInput.readInt();
> if(hasData != 0)
> data = objectInput.readObject();
>
> }
> }
>
