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Concerns in Serialization.

P: n/a
I am trying some data from servlet to applet.Before writing the object
into the stream.I set the content type to application/octet.But i am
not able to read the object in the applet end.

URLConnection conn = url.openConnection () ;
conn.setDoInput (true) ;
conn.setDoOutput (true) ;

ObjectOutputStream os = new ObjectOutputStream (conn.getOutputStream
()) ;
os.writeObject (methodName) ;
os.writeObject (parameters) ;
os.writeObject (uniqueId) ;
os.flush() ;
os.close ();
ObjectInputStream is = new ObjectInputStream (conn.getInputStream
Serializable ret = (Serializable)is.readObject ();
is.close () ;
It is failing during the statement.
Serializable ret = (Serializable)is.readObject ();

The error message that comes up is Unread data
at java/io/ObjectInputStream.toggleBufferingMode
at java/io/ObjectInputStream.readObject
at com/ms/!!!Internal_Class_1.DefaultReadMethod
at java/io/ObjectInputStream.invokeDefaultReadObject
at java/io/ObjectInputStream.defaultReadObject
at java/io/ObjectInputStream.readNewObject
at java/io/ObjectInputStream.readObject
at java/util/Hashtable.readObject
at java/io/ObjectInputStream.invokeReadObject
at java/io/ObjectInputStream.readNewObject
at java/io/ObjectInputStream.readObject
at com/bt/bfsec/cms/homepage/applet/base/URLObject.readObject
at com/bt/bfsec/cms/homepage/applet/panels/BasePanel.sendMethod
at com/bt/bfsec/cms/applet/listinvoice/ListInvoiceSuperClass.filterButton_ActionPerformed
at com/bt/bfsec/cms/applet/listinvoice/ListInvoiceSuperClass.connEtoM1
at com/bt/bfsec/cms/applet/listinvoice/ListInvoiceSuperClass.access$1
at com/bt/bfsec/cms/applet/listinvoice/ListInvoiceSuperClass$IvjEventHandler.actionPerfor med
at javax/swing/AbstractButton.fireActionPerformed
at javax/swing/AbstractButton$ForwardActionEvents.actionPerformed
at javax/swing/DefaultButtonModel.fireActionPerformed
at javax/swing/DefaultButtonModel.setPressed
at javax/swing/plaf/basic/BasicButtonListener.mouseReleased
at java/awt/Component.processMouseEvent
at java/awt/Component.processEvent
at java/awt/Container.processEvent
at java/awt/Component.dispatchEventImpl
at java/awt/Container.dispatchEventImpl
at java/awt/Component.dispatchEvent
at java/awt/LightweightDispatcher.retargetMouseEvent
at java/awt/LightweightDispatcher.processMouseEvent
at java/awt/LightweightDispatcher.dispatchEvent
at java/awt/Container.dispatchEventImpl
at java/awt/Component.dispatchEvent
at java/awt/

When i installed this in different UNIX boxes.In one box it was always
failing but in another box it was failing at random intervals which
left me totally puzzled.

Need help!!!!!
Jul 17 '05 #1
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