--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.util/src/org/graalvm/util/Pair.java	Tue Feb 13 14:41:54 2018 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,102 +0,0 @@
-/*
- * Copyright (c) 2017, 2017, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-package org.graalvm.util;
-
-import java.util.Objects;
-
-/**
- * Utility class representing a pair of values.
- */
-public final class Pair<L, R> {
-    private static final Pair<Object, Object> EMPTY = new Pair<>(null, null);
-
-    private final L left;
-    private final R right;
-
-    @SuppressWarnings("unchecked")
-    public static <L, R> Pair<L, R> empty() {
-        return (Pair<L, R>) EMPTY;
-    }
-
-    public static <L, R> Pair<L, R> createLeft(L left) {
-        if (left == null) {
-            return empty();
-        } else {
-            return new Pair<>(left, null);
-        }
-    }
-
-    public static <L, R> Pair<L, R> createRight(R right) {
-        if (right == null) {
-            return empty();
-        } else {
-            return new Pair<>(null, right);
-        }
-    }
-
-    public static <L, R> Pair<L, R> create(L left, R right) {
-        if (right == null && left == null) {
-            return empty();
-        } else {
-            return new Pair<>(left, right);
-        }
-    }
-
-    private Pair(L left, R right) {
-        this.left = left;
-        this.right = right;
-    }
-
-    public L getLeft() {
-        return left;
-    }
-
-    public R getRight() {
-        return right;
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hashCode(left) + 31 * Objects.hashCode(right);
-    }
-
-    @SuppressWarnings("unchecked")
-    @Override
-    public boolean equals(Object obj) {
-        if (obj == this) {
-            return true;
-        }
-
-        if (obj instanceof Pair) {
-            Pair<L, R> pair = (Pair<L, R>) obj;
-            return Objects.equals(left, pair.left) && Objects.equals(right, pair.right);
-        }
-
-        return false;
-    }
-
-    @Override
-    public String toString() {
-        return String.format("(%s, %s)", left, right);
-    }
-}