--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.test/src/org/graalvm/compiler/hotspot/test/CRC32CSubstitutionsTest.java	Wed Dec 13 12:28:22 2017 -0800
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2007, 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.compiler.hotspot.test;
+
+import java.io.DataInputStream;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.util.zip.Checksum;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+
+import org.graalvm.compiler.test.GraalTest;
+import org.graalvm.compiler.core.test.GraalCompilerTest;
+
+import org.junit.Test;
+
+import static org.junit.Assume.assumeFalse;
+
+/**
+ * Tests compiled calls to {@link java.util.zip.CRC32C}.
+ */
+@SuppressWarnings("javadoc")
+public class CRC32CSubstitutionsTest extends GraalCompilerTest {
+
+    public static long updateBytes(byte[] input, int offset, int end) throws Throwable {
+        Class<?> crcClass = Class.forName("java.util.zip.CRC32C");
+        MethodHandle newMH = MethodHandles.publicLookup().findConstructor(crcClass, MethodType.methodType(void.class));
+        Checksum crc = (Checksum) newMH.invoke();
+        crc.update(input, offset, end);
+        return crc.getValue();
+    }
+
+    @Test
+    public void test1() throws Throwable {
+        assumeFalse(GraalTest.Java8OrEarlier);
+        String classfileName = CRC32CSubstitutionsTest.class.getSimpleName().replace('.', '/') + ".class";
+        InputStream s = CRC32CSubstitutionsTest.class.getResourceAsStream(classfileName);
+        byte[] buf = new byte[s.available()];
+        new DataInputStream(s).readFully(buf);
+        int end = buf.length;
+        for (int offset = 0; offset < buf.length; offset++) {
+            test("updateBytes", buf, offset, end);
+        }
+    }
+
+    public static long updateByteBuffer(ByteBuffer buffer) throws Throwable {
+        Class<?> crcClass = Class.forName("java.util.zip.CRC32C");
+        MethodHandle newMH = MethodHandles.publicLookup().findConstructor(crcClass, MethodType.methodType(void.class));
+        MethodHandle updateMH = MethodHandles.publicLookup().findVirtual(crcClass, "update", MethodType.methodType(void.class, ByteBuffer.class));
+        Checksum crc = (Checksum) newMH.invoke();
+        buffer.rewind();
+        updateMH.invokeExact(crc, buffer); // Checksum.update(ByteBuffer) is also available since 9
+        return crc.getValue();
+    }
+
+    @Test
+    public void test2() throws Throwable {
+        assumeFalse(GraalTest.Java8OrEarlier);
+        String classfileName = CRC32CSubstitutionsTest.class.getSimpleName().replace('.', '/') + ".class";
+        InputStream s = CRC32CSubstitutionsTest.class.getResourceAsStream(classfileName);
+        byte[] buf = new byte[s.available()];
+        new DataInputStream(s).readFully(buf);
+
+        ByteBuffer directBuf = ByteBuffer.allocateDirect(buf.length);
+        directBuf.put(buf);
+        ByteBuffer heapBuf = ByteBuffer.wrap(buf);
+
+        test("updateByteBuffer", directBuf);
+        test("updateByteBuffer", heapBuf);
+    }
+
+}