Turned ObjectStreamException into a nested exception so that we can

provide information on what exception caused the object serialization or
unserialization to freak out.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@464 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/dobj/io/DObjectFactory.java

@@ -1,5 +1,5 @@
 //
-// $Id: DObjectFactory.java,v 1.8 2001/10/11 04:07:52 mdb Exp $
+// $Id: DObjectFactory.java,v 1.9 2001/10/16 16:44:20 mdb Exp $
 
 package com.threerings.presents.dobj.io;
 
@@ -59,8 +59,8 @@ public class DObjectFactory
             return dobj;
 
         } catch (Exception e) {
-            String errmsg = "Unable to unserialize dobj: " + e;
-            throw new ObjectStreamException(errmsg);
+            String errmsg = "Failure unserializing dobj";
+            throw new ObjectStreamException(errmsg, e);
         }
     }