On Thu, 15 May 2025 10:53:27 GMT, Johannes Döbler <d...@openjdk.org> wrote:
>> Also, in JAX-RS for example, you cannot make use of `transferTo` as what you >> get is a heap object, and what you must forward also is a heap object. > > Thanks for the examples. Imho I think that performance sensitive, specialised > code can invest some lines to put together the best solution for the context > whereas the majority of code can simply use a convenient > `reader.readAllAsString()` instead of > `reader.readAllAsCharSequence().toString()` which is borderline to parody. It is **impossible** to "invest some lines" to solve this in JAX-RS, and JAX-RS as a standard technology on tens of thousands of servers. Enforcing `String` prevents these useful optimizations, but brings *no actual benefit*, as *only few* callers actually care for *constant* objects, but would be satisfied with `CharSequence`'s lack of mutation methods. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/24728#discussion_r2090910821
