--- old/src/java.desktop/windows/native/libawt/windows/awt_MouseEvent.h	2017-09-21 16:24:45.000000000 +0100
+++ new/src/java.desktop/windows/native/libawt/windows/awt_MouseEvent.h	2017-09-21 16:24:44.000000000 +0100
@@ -39,6 +39,7 @@
     /* java.awt.MouseEvent field ids */
     static jfieldID xID;
     static jfieldID yID;
+    static jfieldID causedByTouchEventID;
     static jfieldID buttonID;
 
 };