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https://issues.apache.org/jira/browse/CODEC-334?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gary D. Gregory updated CODEC-334:
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Summary: BaseNCodecOutputStream.close() throws on second call — violates
Closeable idempotency contract (was: `BaseNCodecOutputStream.close()` throws
on second call — violates Closeable idempotency contract)
> BaseNCodecOutputStream.close() throws on second call — violates Closeable
> idempotency contract
> ----------------------------------------------------------------------------------------------
>
> Key: CODEC-334
> URL: https://issues.apache.org/jira/browse/CODEC-334
> Project: Commons Codec
> Issue Type: Bug
> Reporter: Shan Jiang
> Priority: Major
>
> ### Summary
> `BaseNCodecOutputStream.close()` is not idempotent: the second call attempts
> to flush to an already-closed underlying stream, throwing `IOException`. The
> `Closeable` contract (JDK 21 Javadoc) states: "If the stream is already
> closed then invoking this method has no effect."
> ### How this was found
> Detected by automated JDK conformance oracle (`checkCloseIdempotent`).
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