RFR: 8364361: [process] java.lang.Process should implement Closeable [v11]

Jaikiran Pai jpai at openjdk.org
Sun Sep 28 12:53:18 UTC 2025


On Mon, 22 Sep 2025 22:25:59 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> The teardown of a Process launched by `ProcessBuilder` includes the closing of streams and ensuring the termination of the process is the responsibility of the caller. The `Process.close()` method provides a clear and obvious way to ensure all the streams are closed and the process terminated.
>> 
>> The try-with-resources statement is frequently used to open streams and ensure they are closed on exiting the block. By implementing `AutoClosable.close()` the completeness of closing the streams and process termination can be done by try-with-resources.
>> 
>> The actions of the `close()` method are to close each stream and destroy the process if it has not terminated.
>
> Roger Riggs has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update close() to use "terminate" consistently.

test/jdk/java/lang/Process/ProcessCloseTest.java line 509:

> 507:     }
> 508:     /**
> 509:      * Test AutoCloseable for the process and out, in, and err streams.

I think this test method comment would need an update. It doesn't match the test method implementation.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26649#discussion_r2385727786


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