src/java.desktop/windows/native/libawt/windows/awt_Robot.cpp

@@ -314,13 +314,29 @@
     UINT        scancode;
     JNIEnv *    env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
 
     // convert Java key into Windows key (and modifiers too)
     AwtComponent::JavaKeyToWindowsKey(jkey, &vkey, &modifiers);
+
     if (vkey == 0) {
+        /* vkey would be 0 for all non-ascii inputs. If non-ascii
+           then we assume they are unicode characters and will
+           supply such input to SendInput() which can handle unicode
+           characters as well as ascii chars. Windows provides api's to
+           handle ascii and unicode characters. All ascii characters
+           (both OEM and standard ascii) would be supplied to keybd_event().
+
+           HandleUnicodeKeys() returns the status of the SendInput()
+           which returns 0 if there is a fail else non-zero.
+           The status 0 tells that the SendInput() in unable to interpret
+           the supplied input upon which the illegal argument exception
+           would be raised.
+        */
+        if(!HandleUnicodeKeys(jkey, dwFlags)) {
         // no equivalent Windows key found for given Java keycode
         JNU_ThrowIllegalArgumentException(env, "Invalid key code");
+        }
     } else {
         // get the scancode from the virtual key
         scancode = ::MapVirtualKey(vkey, 0);
         if (vkey == VK_RMENU ||
             vkey == VK_DELETE ||

@@ -337,10 +353,21 @@
         }
         keybd_event(vkey, scancode, dwFlags, 0);
     }
 }
 
+UINT AwtRobot::HandleUnicodeKeys(jint key, DWORD dwFlags)
+{
+    NSWinInput::INPUT ip;
+    ip.type = 1; //INPUT_KEYBOARD;
+    ip.ki.wVk = 0;
+    ip.ki.wScan = key;
+    ip.ki.dwFlags = (DWORD)(dwFlags | 4); //KEYEVENTF_UNICODE(4)
+    ip.ki.dwExtraInfo = 0;
+    return SendInput(1, (LPINPUT)&ip, sizeof(INPUT));
+}
+
 //
 // utility function to get the C++ object from the Java one
 //
 // (static)
 AwtRobot * AwtRobot::GetRobot( jobject self )