RFR: 8347334: JimageDiffGenerator code clean-ups [v2]

[Severin Gehwolf]

On Thu, 9 Jan 2025 18:51:09 GMT, Henry Jen <henryjen at openjdk.org> wrote:

>> Severin Gehwolf has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Review feedback
>
> src/jdk.jlink/share/classes/jdk/tools/jlink/internal/runtimelink/JimageDiffGenerator.java line 135:
> 
>> 133:                 bytesRead2 = is2.readNBytes(buf2, 0, buf2.length);
>> 134:                 if (bytesRead1 == 0 || bytesRead2 == 0) {
>> 135:                     break; // no more bytes for a stream
> 
> break after test same amount of bytes can remove the test exit the while loop.

I went with @archiecobbs suggestion which simplifies this.

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PR Review Comment: https://git.openjdk.org/jdk/pull/23014#discussion_r1910142221