Summary

Obsolete the VM option UseUTCFileTimestamp.

Problem

The UseUTCFileTimestamp is a VM option for the windows platform. It was introduced for fixing JDK-6539723. After the fix for JDK-8188122, the option is no longer used. Therefore, the UseUTCFileTimestamp VM option should be made obsolete.

Solution

This is a windows-only vm option. So the option needs to be removed from the global_windows.hpp. The option also needs to be added to the obsolete section of the special_vm_flags table in arguments.cpp.

Specification

    $ hg diff globals_windows.hpp
diff --git a/src/hotspot/os/windows/globals_windows.hpp b/src/hotspot/os/windows/globals_windows.hpp
--- a/src/hotspot/os/windows/globals_windows.hpp
+++ b/src/hotspot/os/windows/globals_windows.hpp
@@ -37,10 +37,7 @@
                          notproduct, \
                          range, \
                          constraint, \
-                         writeable) \
-                                                                         \
-  product(bool, UseUTCFileTimestamp, true,                               \
-          "Adjust the timestamp returned from stat() to be UTC")
+                         writeable)


 //    
    diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
    --- a/src/hotspot/share/runtime/arguments.cpp
    +++ b/src/hotspot/share/runtime/arguments.cpp
    @@ -530,6 +530,7 @@
       { "SharedReadOnlySize",            JDK_Version::undefined(), JDK_Version::jdk(10), JDK_Version::undefined() },
       { "SharedMiscDataSize",            JDK_Version::undefined(), JDK_Version::jdk(10), JDK_Version::undefined() },
       { "SharedMiscCodeSize",            JDK_Version::undefined(), JDK_Version::jdk(10), JDK_Version::undefined() },
    +  { "UseUTCFileTimestamp",           JDK_Version::undefined(), JDK_Version::jdk(11), JDK_Version::undefined() },

     #ifdef TEST_VERIFY_SPECIAL_JVM_FLAGS
       { "dep > obs",                    JDK_Version::jdk(9), JDK_Version::jdk(8), JDK_Version::undefined() },