282617 - Problems with serialization of Undefined

Status: RESOLVED FIXED

(Rhino Graveyard :: Core, defect)

Description

[Mario Cormier]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

This might be related to the changes for bug #280047.

My use case is two applications, one being a "scripting host", the other sending
JavaScript to the first one (over RMI) to evaluate.  The relevant part of the
interface is trivial and looks like:

  public interface RemoteScriptingHost extends Remote {
    public Object eval(String expr) throws RemoteException;
  }

My problem is when RMI unmarshals the return value and it's undefined, I get an
exception like:

java.rmi.UnmarshalException: error unmarshalling return; nested exception is: 
	java.io.InvalidClassException: org.mozilla.javascript.Undefined; local class
incompatible: stream classdesc serialVersionUID = 9195680630202616767, local
class serialVersionUID = 940272108611353017

Both applications are launched from the same code base, so I know the versions
of Undefined match exactly.  Maybe the class needs an explicit serialVersionUID?

Reproducible: Always

Steps to Reproduce:

Comment 1

[Attila Szegedi]

Do you use identical JVMs (vendor and version) on both sides?

Comment 2

[Mario Cormier]

Yes, we're talking two instances of the same VM (Sun HotSpot Client 1.4.2_06)
running on the same PC.

Comment 3

[Igor Bukanov]

Reassigning to [e-mail] pending resolution of bug 288433

Comment 4

[Attila Szegedi]

This was fixed in CVS HEAD, serial version ID 9195680630202616767 was added manually to the class. It'll show up in the next release