--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/gc/shared/SerialWriteBarrier.java	Wed Jun 26 14:28:47 2019 +0530
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,46 +0,0 @@
-/*
- * Copyright (c) 2013, 2018, 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.shared;
-
-import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_8;
-import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_4;
-
-import org.graalvm.compiler.graph.NodeClass;
-import org.graalvm.compiler.nodeinfo.NodeInfo;
-import org.graalvm.compiler.nodes.memory.address.AddressNode;
-
-@NodeInfo(cycles = CYCLES_8, size = SIZE_4)
-public class SerialWriteBarrier extends ObjectWriteBarrier {
-
-    public static final NodeClass<SerialWriteBarrier> TYPE = NodeClass.create(SerialWriteBarrier.class);
-
-    public SerialWriteBarrier(AddressNode address, boolean precise) {
-        this(TYPE, address, precise);
-    }
-
-    protected SerialWriteBarrier(NodeClass<? extends SerialWriteBarrier> c, AddressNode address, boolean precise) {
-        super(c, address, null, precise);
-    }
-}