--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/gc/g1/G1PostWriteBarrier.java	Wed Jun 26 15:34:13 2019 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,54 +0,0 @@
-/*
- * Copyright (c) 2013, 2019, 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.compiler.hotspot.gc.g1;
-
-import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_64;
-import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_64;
-
-import org.graalvm.compiler.graph.NodeClass;
-import org.graalvm.compiler.hotspot.gc.shared.ObjectWriteBarrier;
-import org.graalvm.compiler.nodeinfo.NodeInfo;
-import org.graalvm.compiler.nodes.ValueNode;
-import org.graalvm.compiler.nodes.memory.address.AddressNode;
-
-@NodeInfo(cycles = CYCLES_64, size = SIZE_64)
-public class G1PostWriteBarrier extends ObjectWriteBarrier {
-
-    public static final NodeClass<G1PostWriteBarrier> TYPE = NodeClass.create(G1PostWriteBarrier.class);
-    protected final boolean alwaysNull;
-
-    public G1PostWriteBarrier(AddressNode address, ValueNode value, boolean precise, boolean alwaysNull) {
-        this(TYPE, address, value, precise, alwaysNull);
-    }
-
-    private G1PostWriteBarrier(NodeClass<? extends G1PostWriteBarrier> c, AddressNode address, ValueNode value, boolean precise, boolean alwaysNull) {
-        super(c, address, value, precise);
-        this.alwaysNull = alwaysNull;
-    }
-
-    public boolean alwaysNull() {
-        return alwaysNull;
-    }
-}