In src/java.base/windows/native/libjava/WinNTFileSystem_md.c the FILETIME retrieved by GetFileTime() should be converted to a ULARGE_INTEGER, and the ULARGE_INTEGER derived from the tiime parameter of Java_java_io_WinNTFileSystem_setLastModifiedTime() should be converted to a ULARGE_INTEGER before being converted to the FILETIME passed to SetFileTime().

In particular, in the FILETIME structure documentation it is stated that "[...] you should copy the low- and high-order parts of the file time to a ULARGE_INTEGER structure [...]"