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

@@ -100,11 +100,11 @@
          * the mouse pointer is not over the selected region.
          * In this case we sacrifice backward compatibility
          * to allow dnd of the current selection.
          */
         if (msg->message == WM_LBUTTONDBLCLK) {
-            jchar echo = SendMessage(EM_GETPASSWORDCHAR);
+            jchar echo = static_cast<jchar>(SendMessage(EM_GETPASSWORDCHAR));
 
             if(echo == 0){
               SetStartSelectionPos(static_cast<LONG>(SendMessage(
                   EM_FINDWORDBREAK, WB_MOVEWORDLEFT, lCurPos)));
               SetEndSelectionPos(static_cast<LONG>(SendMessage(