--- a/jdk/src/windows/native/sun/windows/awt_TextComponent.cpp	Thu Apr 28 20:14:30 2011 +0400
+++ b/jdk/src/windows/native/sun/windows/awt_TextComponent.cpp	Thu Apr 28 19:23:44 2011 +0400
@@ -191,8 +191,11 @@
 {
     HIMC hIMC = ImmGetContext();
     // rc is not used for text component.
-    COMPOSITIONFORM cf = { CFS_POINT, {0,0}, {0,0,0,0} };
+    COMPOSITIONFORM cf = { CFS_FORCE_POSITION, {0,0}, {0,0,0,0} };
     GetCaretPos(&(cf.ptCurrentPos));
+    // the proxy is the native focus owner and it contains the composition window
+    // let's convert the position to a coordinate space relative to proxy
+    ::MapWindowPoints(GetHWnd(), GetProxyFocusOwner(), (LPPOINT)&cf.ptCurrentPos, 1);
     ImmSetCompositionWindow(hIMC, &cf);
 
     LOGFONT lf;