Tap4-beta 4: Error using DataSqueezer SerializableAdaptor

["Hensley, Richard" <Ri...@McKesson.com>]

I think there is a bug in the hivemind declaration of the
SerializableAdaptor. When my application tries to unsqueeze a  serializable
object, I get the following stack dump.

#
org.apache.tapestry.util.io.ResolvingObjectInputStream.resolveClass(Resolvin
gObjectInputStream.java:50)
# java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1513)
# java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1435)
# java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1626)
# java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)
# java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)
#
org.apache.tapestry.util.io.SerializableAdaptor.unsqueeze(SerializableAdapto
r.java:125)
# $SqueezeAdaptor_105ac0ee43f.unsqueeze($SqueezeAdaptor_105ac0ee43f.java)
#
org.apache.tapestry.util.io.DataSqueezerImpl.unsqueeze(DataSqueezerImpl.java
:181)
# $DataSqueezer_105ac0ee32b.unsqueeze($DataSqueezer_105ac0ee32b.java)

The relevant information is that the resolving object input stream has a
null _resolver member. This is because the SerializableAdaptor has a null
_resolver member. I think this is because either the hivemind declaration is
wrong, or auto-wiring is not working in this case. The hivemind declaration
is in tapestry.data.xml:

  <service-point id="SerializableAdaptor" interface="SqueezeAdaptor">
    
    Converts an object down to a compressed byte stream, and then to a
MIME-like string representation.
    
    <invoke-factory>
      <construct class="SerializableAdaptor"/>
    </invoke-factory>
  </service-point>

According to the Hivemind documentation a ClassResolver is auto-wired to a
property named classResolver, SerialziableAdaptor has a property named
Resolver, and therefore will not auto-wire.

Any comments on this problem? 

I'm going to add a JIRA issue for this with this email in it.


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