On Thu, 9 Nov 2023 04:13:21 GMT, Alec Su <[email protected]> wrote:

>> The bug on Windows doesn't generate any error messages. During the testcase 
>> run, every "Open MIDI port" message should be followed by an "All 
>> SysexMessage sent" message. Alternatively, you can check `%ERRORLEVEL%` to 
>> determine if there's an error when JVM exits.
>> 
>> On Linux, there are no software MIDI devices provided by default. To 
>> reproduce this bug on Linux, you need to connect a real MIDI device to Linux 
>> or create a virtual MIDI device by running the command `sudo modprobe 
>> snd_virmidi midi_devs=1`.
>> 
>> The bug occurred because a pointer was increased on Line 137, then it 
>> attempted to release the modified pointer on Line 143.
>> 
>> https://github.com/openjdk/jdk/blob/e9d19d0fffc47119d0d4f756833ec87cd0a6331e/src/java.desktop/share/native/libjsound/MidiOutDevice.c#L128-L144
>> 
>> To fix this, I added a variable `msg` to store the modified pointer to 
>> prevent `data` pointer being modified.
>
> Alec Su has updated the pull request incrementally with one additional commit 
> since the last revision:
> 
>   Fix an error

Marked as reviewed by serb (Reviewer).

-------------

PR Review: https://git.openjdk.org/jdk/pull/16477#pullrequestreview-1724147929

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