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https://issues.apache.org/jira/browse/AVRO-1249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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E. Sammer updated AVRO-1249:
----------------------------
Attachment: AVRO-1249-2.patch
Attaching an updated patch that includes a test of double-close()ing a
DataFileWriter. I've included this test as a part of a larger test of writing
data out.
Turns out the tests are in a different package than expected otherwise I would
have included them earlier. We should probably move TestDataFile to
o.a.avro.file so it's easier to find.
> DataFileWriter doesn't correctly conform to Closeable
> -----------------------------------------------------
>
> Key: AVRO-1249
> URL: https://issues.apache.org/jira/browse/AVRO-1249
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.7.3
> Reporter: E. Sammer
> Assignee: E. Sammer
> Fix For: 1.7.4
>
> Attachments: AVRO-1249-2.patch, AVRO-1249.patch
>
>
> o.a.avro.file.DataFileWriter implements java.io.Closeable, but violates the
> contract stated by the interface's close() method javadoc.
> {quote}
> Closes this stream and releases any system resources associated
> with it. If the stream is already closed then invoking this
> method has no effect.
> {quote}
> DataFileWriter's close() calls flush() calls sync() which calls assertOpen().
> This causes repeated calls to close(), or those on a file that failed to
> open, to throw an exception which violates the contract. Notably, the
> following idiom fails (and shouldn't).
> {code}
> import com.google.common.io.Closeables;
> // ...
> DataFileWriter writer = null;
> try {
> writer = new DataFileWriter(...);
> // ...
> } finally {
> Closeables.closeQuietly(writer);
> }
> {code}
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