On Tue, 12 Aug 2025 03:49:10 GMT, Jaikiran Pai <[email protected]> wrote:
>> Hi, Which version of OpenJDK is this change available in? I am running into >> a situation where Java on Windows drops TCP/HTTP connections, but i don't >> have this issue on Linux (I have tested with JDK 21.0.8+9). > > Hello @jwilliams990 > >> Hi, Which version of OpenJDK is this change available in? > > This change is currently in the unreleased Java 26 version. It's only > available in 26 early access builds https://jdk.java.net/26/ or one has to > manually build this JDK repo to use this feature. > >> I am running into a situation where Java on Windows drops TCP/HTTP >> connections, but i don't have this issue on Linux (I have tested with JDK >> 21.0.8+9). > > Linux too has a limit on the number of backlog connections. I don't know the > details of the issue you are running into but it could be unrelated to trying > to use a backlog value greater than 200 on Windows, when creating a > `ServerSocket`. Hi @jaikiran, Thanks for your response. Any chance this could be included in Java 21 LTS in the future? The default TCP backlog in Windows is 200. Linux has a default of 4096. The issue i am seeing is when running Apache Tomcat on Windows vs. Linux, Windows shows a very high percentage of connection refused errors vs. Linux. ------------- PR Comment: https://git.openjdk.org/jdk/pull/25819#issuecomment-3177608798
