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https://issues.apache.org/jira/browse/AVRO-1707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15245015#comment-15245015
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Zoltan Farkas commented on AVRO-1707:
-------------------------------------
No problems with the practice if the readers are fixed to stop keeping
references to a thread... (which were the cause of large memory waste in our
apps)
In our use cases java serialization is not a common use case so it seemed like
a waste to have these readers and writers initialized without being used... and
it is so simple to make this lazy and being initialized only when needed...
> Java serialization readers/writers in generated Java classes
> ------------------------------------------------------------
>
> Key: AVRO-1707
> URL: https://issues.apache.org/jira/browse/AVRO-1707
> Project: Avro
> Issue Type: Improvement
> Affects Versions: 1.8.0
> Reporter: Zoltan Farkas
>
> the following static instances are declared in the generated classes:
> private static final org.apache.avro.io.DatumWriter
> WRITER$ = new org.apache.avro.specific.SpecificDatumWriter(SCHEMA$);
> private static final org.apache.avro.io.DatumReader
> READER$ = new org.apache.avro.specific.SpecificDatumReader(SCHEMA$);
> the reaser/writer hold on to a reference to the "Creator Thread":
> "private final Thread creator;"
> which inhibits GC-ing thread locals... for this thread...
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