Integrated: 8373447: Suspicious sign extension after integer promotion in imageDecompressor.cpp

[Chen Liang]

On Thu, 18 Dec 2025 18:01:03 GMT, Chen Liang <liach at openjdk.org> wrote:

> The bitwise manipulation code in ImageDecompressor::getU8 and getU4 utilizes implicit conversion to signed int for bitwise or, making this code confusing, especially when the most significant bytes are explicitly converted to unsigned long long, and unsigned long long takes part in a bitwise or with int. We should convert all u1 to u8/u4 before shifts to make the code easier to maintain and understand.

This pull request has now been integrated.

Changeset: ecb42341
Author:    Chen Liang <liach at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/ecb42341a94326b1ee85ddd7b9ebadce8c952b99
Stats:     7 lines in 1 file changed: 0 ins; 0 del; 7 mod

8373447: Suspicious sign extension after integer promotion in imageDecompressor.cpp

Reviewed-by: alanb

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PR: https://git.openjdk.org/jdk/pull/28903