Backport PR #13447 to 8.0: Fix: patch Puma around a JRuby ARM64 bug (#…

…13453)

Co-authored-by: João Duarte <jsvd@users.noreply.github.com>
(cherry picked from commit 32690cb)

logstash-core/lib/logstash/patches/puma.rb

@@ -73,3 +73,19 @@ module Puma
   STDERR = LogStash::IOWrappedLogger.new(LogStash::NullLogger)
   STDOUT = LogStash::IOWrappedLogger.new(LogStash::NullLogger)
 end
+
+# JRuby (>= 9.2.18.0) added support for getsockopt(Socket::IPPROTO_TCP, Socket::TCP_INFO)
+# however it isn't working correctly on ARM64 likely due an underlying issue in JNR/JFFI.
+#
+# Puma uses the TCP_INFO to detect a closed socket when handling a request and has a dummy
+# fallback in place when Socket constants :TCP_INFO && :IPPROTO_TCP are not defined, see:
+# https://github.com/puma/puma/blob/v5.5.2/lib/puma/server.rb#L169-L192
+#
+# Remove this patch once https://github.com/elastic/logstash/issues/13444 gets resolved!
+if ENV_JAVA['os.name'].match?(/Linux/i) && ENV_JAVA['os.arch'].eql?('aarch64')
+  Puma::Server.class_eval do
+    def closed_socket?(socket)
+      false
+    end
+  end
+end