8257242: [macOS] Java app crashes while switching input methods

Backport-of: 822ee47

src/java.desktop/macosx/native/libawt_lwawt/awt/AWTView.h

@@ -37,9 +37,6 @@
 
     // TODO: NSMenu *contextualMenu;
 
-    // Keyboard layout
-    NSString *kbdLayout;
-
     // dnd support (see AppKit/NSDragging.h, NSDraggingSource/Destination):
     CDragSource *_dragSource;
     CDropTarget *_dropTarget;

src/java.desktop/macosx/native/libawt_lwawt/awt/AWTView.m

@@ -37,6 +37,9 @@
 #import <Carbon/Carbon.h>
 #import <JavaNativeFoundation/JavaNativeFoundation.h>
 
+// keyboard layout
+static NSString *kbdLayout;
+
 @interface AWTView()
 @property (retain) CDropTarget *_dropTarget;
 @property (retain) CDragSource *_dragSource;
@@ -998,7 +1001,7 @@ - (void) insertText:(id)aString replacementRange:(NSRange)replacementRange
     [self abandonInput];
 }
 
-- (void)keyboardInputSourceChanged:(NSNotification *)notification
++ (void)keyboardInputSourceChanged:(NSNotification *)notification
 {
 #ifdef IM_DEBUG
     NSLog(@"keyboardInputSourceChangeNotification received");
@@ -1295,7 +1298,7 @@ static JNF_MEMBER_CACHE(jm_characterIndexForPoint, jc_CInputMethod,
     jint index = JNFCallIntMethod(env, fInputMethodLOCKABLE, jm_characterIndexForPoint, (jint)flippedLocation.x, (jint)flippedLocation.y); // AWT_THREADING Safe (AWTRunLoopMode)
 
 #ifdef IM_DEBUG
-    fprintf(stderr, "characterIndexForPoint returning %ld\n", index);
+    fprintf(stderr, "characterIndexForPoint returning %d\n", index);
 #endif // IM_DEBUG
 
     if (index == -1) {