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diff --git a/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/layout/FillData.java b/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/layout/FillData.java
new file mode 100644
index 000000000..cb1dc26cd
--- /dev/null
+++ b/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/layout/FillData.java
@@ -0,0 +1,48 @@
+/*******************************************************************************
+ * Copyright (c) 2005 IBM Corporation and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.layout;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+class FillData {
+
+	int defaultWidth = -1, defaultHeight = -1;
+	int currentWhint, currentHhint, currentWidth = -1, currentHeight = -1;
+
+Point computeSize (Control control, int wHint, int hHint, boolean flushCache) {
+	if (flushCache) flushCache();
+	if (wHint == SWT.DEFAULT && hHint == SWT.DEFAULT) {
+		if (defaultWidth == -1 || defaultHeight == -1) {
+			Point size = control.computeSize (wHint, hHint, flushCache);
+			defaultWidth = size.x;
+			defaultHeight = size.y;
+		}
+		return new Point(defaultWidth, defaultHeight);
+	}
+	if (currentWidth == -1 || currentHeight == -1 || wHint != currentWhint || hHint != currentHhint) {
+		Point size = control.computeSize (wHint, hHint, flushCache);
+		currentWhint = wHint;
+		currentHhint = hHint;
+		currentWidth = size.x;
+		currentHeight = size.y;
+	}
+	return new Point(currentWidth, currentHeight);
+}
+void flushCache () {
+	defaultWidth = defaultHeight = -1;
+	currentWidth = currentHeight = -1;
+}
+}