At line 127 of spring-core/src/main/java/org/springframework/core/codec/StringDecoder.java at the main branch, you have .doOnTerminate(chunks::releaseAndClear)

But chunks won't be released and cleared upon cancellation according to javadoc of reactor-core's reactor.core.publisher.Flux.doOnTerminate(): Add behavior (side-effect) triggered when the Flux terminates, either by completing successfully or failing with an error.

I suggest that you fix this potential memory leak by replacing doOnTerminate() by doFinally() because doFinally() Add behavior (side-effect) triggered after the Flux terminates for any reason, including cancellation.

Comment From: rstoyanchev

Thanks for the report. I've also added a test that proved the issue since existing tests were not catching it.

Comment From: yunjeffluo

thank you so much for fixing this issue quickly, we really appreciate it

On Tue, May 9, 2023 at 2:05 PM Rossen Stoyanchev @.***> wrote:

Thanks for the report. I've also added a test that proved the issue since existing tests were not catching it.

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