Thomas Mueller created OAK-973:
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Summary: Bundle serialization broken due to missing byte for
boolean property
Key: OAK-973
URL: https://issues.apache.org/jira/browse/OAK-973
Project: Jackrabbit Oak
Issue Type: New Feature
Reporter: Thomas Mueller
Assignee: Thomas Mueller
Priority: Minor
I have got a strange case where some node bundle is broken, seemingly because a
byte is missing. I can't explain the missing byte, but it is reproducible,
meaning that writing the bundles again will break them again. There are 11
broken bundles, 10 of them have the size 480 bytes and one is slightly larger.
It is always a boolean property value that is missing, always the value for the
property jcr:isCheckedOut.
As a (temporary) solution, and to help analyze what the problem might be, I
will create a patch that does the following:
* When serializing a bundle, check if the byte array can be de-serialized. If
not, then try again. Starting with the 3th try, use a slower variant where
before and after writing the boolean value the buffer is flushed. I'm aware
that ByteArrayOutputStream.flush doesn't do much, but maybe it solves the
problem (let's see) if the problem is related to a JVM issue.
* If de-serializing a bundle fails, check if it's because of a missing boolean
property value. If yes, insert the missing byte.
I have also added some log messages (warning / error) to help analyze the
problem.
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