commit cd70af1d34bd088a42b2a471be045a217f0917bc
author Matthias Baesken <mbaesken@openjdk.org> Tue Oct 02 13:48:08 2018 +0200
committer Matthias Baesken <mbaesken@openjdk.org> Tue Oct 02 13:48:08 2018 +0200
tree 7606eb8370eb6a0c9890bd13e9479cabd7882be7
parent ea08148237b107cff5809a6455c51c7372d05b2b

8211106: [windows] Update OS detection code to recognize Windows Server 2019

Reviewed-by: alanb, clanger, bobv

hotspot/src/os/windows/vm/os_windows.cpp

diff --git a/hotspot/src/os/windows/vm/os_windows.cpp b/hotspot/src/os/windows/vm/os_windows.cpp
index 1baf45f..358692f9 100644
--- a/hotspot/src/os/windows/vm/os_windows.cpp
+++ b/hotspot/src/os/windows/vm/os_windows.cpp
@@ -1757,7 +1757,13 @@
     if (is_workstation) {
       st->print("10");
     } else {
-      st->print("Server 2016");
+      // distinguish Windows Server 2016 and 2019 by build number
+      // Windows server 2019 GA 10/2018 build number is 17763
+      if (build_number > 17762) {
+        st->print("Server 2019");
+      } else {
+        st->print("Server 2016");
+      }
     }
     break;