--- old/src/java.desktop/macosx/native/libawt_lwawt/awt/LWCToolkit.m	2016-09-30 01:19:31.000000000 +0400
+++ new/src/java.desktop/macosx/native/libawt_lwawt/awt/LWCToolkit.m	2016-09-30 01:19:30.000000000 +0400
@@ -43,6 +43,13 @@
 
 #import <JavaRuntimeSupport/JavaRuntimeSupport.h>
 
+// SCROLL EVENT MASK
+#define SCROLL_PHASE_UNSUPPORTED 1
+#define SCROLL_PHASE_BEGAN 2
+#define SCROLL_PHASE_CONTINUED 3
+#define SCROLL_PHASE_CANCELLED 4
+#define SCROLL_PHASE_ENDED 5
+
 int gNumberOfButtons;
 jint* gButtonDownMasks;
 
@@ -72,6 +79,15 @@
     eventCount++;
 }
 
++ (jint) scrollPhaseToInt: (NSEventPhase) phase {
+    if (!phase) return SCROLL_PHASE_UNSUPPORTED;
+    switch (phase) {
+        case NSEventPhaseBegan: return SCROLL_PHASE_BEGAN;
+        case NSEventPhaseCancelled: return SCROLL_PHASE_CANCELLED;
+        case NSEventPhaseEnded: return SCROLL_PHASE_ENDED;
+    }
+    return SCROLL_PHASE_CONTINUED;
+}
 @end