On Thu, 28 Aug 2025 00:39:54 GMT, Guanqiang Han <g...@openjdk.org> wrote:
>> Validate class name length immediately after GetStringUTFLength() in
>> Class.forName0. This prevents potential issues caused by overly long class
>> names before they reach later code that would reject them, throwing
>> ClassNotFoundException early.
>
> Guanqiang Han has updated the pull request incrementally with one additional
> commit since the last revision:
>
> Update Class.java
>
> Use ModifiedUtf.utfLen instead of static import for readability
src/java.base/share/classes/java/lang/Class.java line 4163:
> 4161: // Quick approximation: each char can be at most 3 bytes in
> Modified UTF-8.
> 4162: // If the string is short enough, it definitely fits.
> 4163: if (name.length() * 3 <= JAVA_CLASSNAME_MAX_LEN) {
Won't this incorrectly return true on overflow?
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PR Review Comment: https://git.openjdk.org/jdk/pull/26802#discussion_r2305956047
