git: openjdk/jdk21u-dev: master: 8306040: HttpResponseInputStream.available() returns 1 on empty stream

[Goetz Lindenmaier]

Changeset: 4244cb0d
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2024-03-05 11:57:40 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/4244cb0d9927bd2b6c565b10e6bd40be0c3c7843

8306040: HttpResponseInputStream.available() returns 1 on empty stream

Backport-of: acaab6fd74f507bb6b18167505d88e505bdf24bd

! src/java.net.http/share/classes/jdk/internal/net/http/ResponseSubscribers.java
+ test/jdk/java/net/httpclient/HttpInputStreamAvailableTest.java