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  1. Jenkins
  2. JENKINS-49027

Improve diagnostics of rejected objects in Remoting

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    • Improvement
    • Resolution: Fixed
    • Minor
    • remoting

    Description

      Currently it is hard to understand which field has been rejected from serialization in Remoting. You get only stacktraces like this one:

      [android-lint] Collecting Android Lint files...
      ERROR: Build step failed with exception
      java.lang.SecurityException: Rejected: com.google.common.collect.AbstractMultimap
      	at hudson.remoting.ClassFilter.check(ClassFilter.java:75)
      	at hudson.remoting.MultiClassLoaderSerializer$Input.resolveClass(MultiClassLoaderSerializer.java:129)
      	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1613)
      	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
      	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1623)
      	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
      	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1623)
      	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
      	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1774)
      	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
      	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2000)
      	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1924)
      	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
      	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
      	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
      	at hudson.remoting.UserRequest.deserialize(UserRequest.java:277)
      	at hudson.remoting.UserResponse.retrieve(UserRequest.java:310)
      	at hudson.remoting.Channel.call(Channel.java:909)
      	at hudson.FilePath.act(FilePath.java:998)
      

      I propose to...

      • If FINE/INFO logger is enabled for the class filter, run deep object analysis and log info about structure and rejected classes
      • Since there is no way to hook on Java deserialization, use Reflection for such operation
      • Nice2have: Print information about rejected classes into a separate file if workdir is enabled

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              Unassigned Unassigned
              oleg_nenashev Oleg Nenashev
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                Created:
                Updated:
                Resolved: