--- old/src/java.desktop/windows/native/libawt/windows/awt_Component.cpp	2018-06-11 20:26:54.000000000 +0100
+++ new/src/java.desktop/windows/native/libawt/windows/awt_Component.cpp	2018-06-11 20:26:54.000000000 +0100
@@ -3853,6 +3853,8 @@
 MsgRouting AwtComponent::WmForwardChar(WCHAR character, LPARAM lParam,
                                        BOOL synthetic)
 {
+    deadKeyActive = FALSE;
+
     // just post WM_CHAR with unicode key value
     DefWindowProc(WM_CHAR, (WPARAM)character, lParam);
     return mrConsume;