Github user kanzhang commented on the pull request:
https://github.com/apache/spark/pull/1338#issuecomment-49807264
@MLnick I merely removed it from programming guide. The functionality (and
your test) is still there should anyone wants to try it.
@mateiz I meant when reading JavaBeans, you get a dict of attributes to
values on the Python side. But you can't turn around and save it as JavaBeans
from Python. What you save is a Java Map since that's what Pyrolite will pickle
a dict to. I was trying to confirm the same asymmetry on the saving side (i.e.,
saving a Python custom object as Java Map, and reads it back as a Python dict),
but I got the following exception and gave up.
```
Py4JJavaError: An error occurred while calling
z:org.apache.spark.api.python.PythonRDD.saveAsSequenceFile.
: org.apache.spark.SparkException: Job aborted due to stage failure: Task
33.0:2 failed 1 times, most recent failure: Exception failure in TID 70 on host
localhost: net.razorvine.pickle.InvalidOpcodeException: opcode not implemented:
OBJ
net.razorvine.pickle.Unpickler.dispatch(Unpickler.java:223)
net.razorvine.pickle.Unpickler.load(Unpickler.java:84)
net.razorvine.pickle.Unpickler.loads(Unpickler.java:97)
```
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