--- old/src/windows/native/sun/windows/awt_Window.cpp	2013-02-08 15:22:05.415749800 +0400
+++ new/src/windows/native/sun/windows/awt_Window.cpp	2013-02-08 15:22:04.686708100 +0400
@@ -148,6 +148,11 @@
     jboolean isFSEMState;
 };
 
+// struct for _Ungrab() method
+struct UngrabStruct {
+    jobject window;
+    jboolean doPost;
+};
 
 /************************************************************************
  * AwtWindow fields
@@ -320,11 +325,14 @@
 void AwtWindow::_Ungrab(void * param) {
     JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
 
-    jobject self = (jobject)param;
+    UngrabStruct* us = (UngrabStruct*)param;
+    jobject self = us->window;
+    jboolean doPost = us->doPost;
 
     if (env->EnsureLocalCapacity(1) < 0)
     {
         env->DeleteGlobalRef(self);
+        delete us;
         return;
     }
 
@@ -333,10 +341,11 @@
     PDATA pData;
     JNI_CHECK_PEER_GOTO(self, ret);
     p = (AwtWindow *)pData;
-    p->Ungrab(FALSE);
+    p->Ungrab(doPost);
 
   ret:
     env->DeleteGlobalRef(self);
+    delete us;
 }
 
 MsgRouting AwtWindow::WmNcMouseDown(WPARAM hitTest, int x, int y, int button) {
@@ -3507,12 +3516,16 @@
 }
 
 JNIEXPORT void JNICALL
-Java_sun_awt_windows_WWindowPeer_nativeUngrab(JNIEnv *env, jobject self)
+Java_sun_awt_windows_WWindowPeer_nativeUngrab(JNIEnv *env, jobject self, jboolean doPost)
 {
     TRY;
 
-    AwtToolkit::GetInstance().SyncCall(AwtWindow::_Ungrab, env->NewGlobalRef(self));
-    // global ref is deleted in _Ungrab()
+    UngrabStruct *us = new UngrabStruct;
+    us->window = env->NewGlobalRef(self);
+    us->doPost = doPost;    
+
+    AwtToolkit::GetInstance().SyncCall(AwtWindow::_Ungrab, us);
+    // global ref and us are deleted in _Ungrab()
 
     CATCH_BAD_ALLOC;
 }