--- a/src/java.base/windows/native/include/jni_md.h	Mon Oct 30 16:37:53 2017 +0100
+++ b/src/java.base/windows/native/include/jni_md.h	Tue Oct 31 11:55:09 2017 -0400
@@ -30,6 +30,7 @@
 #define JNIIMPORT __declspec(dllimport)
 #define JNICALL __stdcall
 
+// 'long' is always 32 bit on windows so this matches what jdk expects
 typedef long jint;
 typedef __int64 jlong;
 typedef signed char jbyte;