8069207: [TESTBUG] Exception thrown for java.lang.NoSuchMethodError: sun.misc.Unsafe.monitorExit

Reviewed-by: gtriantafill, dholmes

hotspot/test/runtime/Unsafe/AllocateInstance.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verifies the behaviour of Unsafe.allocateInstance
+ * @library /testlibrary
+ * @run main AllocateInstance
+ */
+
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class AllocateInstance {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+
+        // allocateInstance() should not result in a call to the constructor
+        TestClass tc = (TestClass)unsafe.allocateInstance(TestClass.class);
+        assertFalse(tc.calledConstructor);
+
+        // allocateInstance() on an abstract class should result in an InstantiationException
+        try {
+            AbstractClass ac = (AbstractClass)unsafe.allocateInstance(AbstractClass.class);
+            throw new RuntimeException("Did not get expected InstantiationException");
+        } catch (InstantiationException e) {
+            // Expected
+        }
+    }
+
+    class TestClass {
+        public boolean calledConstructor = false;
+
+        public TestClass() {
+            calledConstructor = true;
+        }
+    }
+
+    abstract class AbstractClass {
+        public AbstractClass() {}
+    }
+}

hotspot/test/runtime/Unsafe/AllocateMemory.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verifies behaviour of Unsafe.allocateMemory
+ * @library /testlibrary
+ * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:MallocMaxTestWords=20m AllocateMemory
+ */
+
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class AllocateMemory {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+
+        // Allocate a byte, write to the location and read back the value
+        long address = unsafe.allocateMemory(1);
+        assertNotEquals(address, 0L);
+
+        unsafe.putByte(address, Byte.MAX_VALUE);
+        assertEquals(Byte.MAX_VALUE, unsafe.getByte(address));
+        unsafe.freeMemory(address);
+
+        // Call to allocateMemory() with a negative value should result in an IllegalArgumentException
+        try {
+            address = unsafe.allocateMemory(-1);
+            throw new RuntimeException("Did not get expected IllegalArgumentException");
+        } catch (IllegalArgumentException e) {
+            // Expected
+            assertNotEquals(address, 0L);
+        }
+
+        // allocateMemory() should throw an OutOfMemoryError when the underlying malloc fails,
+        // we test this by limiting the malloc using -XX:MallocMaxTestWords
+        try {
+            address = unsafe.allocateMemory(20 * 1024 * 1024 * 8);
+        } catch (OutOfMemoryError e) {
+            // Expected
+            return;
+        }
+        throw new RuntimeException("Did not get expected OutOfMemoryError");
+    }
+}

hotspot/test/runtime/Unsafe/CopyMemory.java

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verifies behaviour of Unsafe.copyMemory
+ * @library /testlibrary
+ * @run main CopyMemory
+ */
+
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class CopyMemory {
+    final static int LENGTH = 8;
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        long src = unsafe.allocateMemory(LENGTH);
+        long dst = unsafe.allocateMemory(LENGTH);
+        assertNotEquals(src, 0L);
+        assertNotEquals(dst, 0L);
+
+        // call copyMemory() with different lengths and verify the contents of
+        // the destination array
+        for (int i = 0; i < LENGTH; i++) {
+            unsafe.putByte(src + i, (byte)i);
+            unsafe.copyMemory(src, dst, i);
+            for (int j = 0; j < i; j++) {
+                assertEquals(unsafe.getByte(src + j), unsafe.getByte(src + j));
+            }
+        }
+        unsafe.freeMemory(src);
+        unsafe.freeMemory(dst);
+    }
+}

hotspot/test/runtime/Unsafe/DefineClass.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verifies the behaviour of Unsafe.defineClass
+ * @library /testlibrary
+ * @run main DefineClass
+ */
+
+import java.security.ProtectionDomain;
+import java.io.InputStream;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class DefineClass {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        TestClassLoader classloader = new TestClassLoader();
+        ProtectionDomain pd = new ProtectionDomain(null, null);
+
+        byte klassbuf[] = InMemoryJavaCompiler.compile("TestClass", "class TestClass { }");
+
+        // Invalid class data
+        try {
+            unsafe.defineClass(null, klassbuf, 4, klassbuf.length - 4, classloader, pd);
+            throw new RuntimeException("defineClass did not throw expected ClassFormatError");
+        } catch (ClassFormatError e) {
+            // Expected
+        }
+
+        // Negative offset
+        try {
+            unsafe.defineClass(null, klassbuf, -1, klassbuf.length, classloader, pd);
+            throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException");
+        } catch (IndexOutOfBoundsException e) {
+            // Expected
+        }
+
+        // Negative length
+        try {
+            unsafe.defineClass(null, klassbuf, 0, -1, classloader, pd);
+            throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException");
+        } catch (IndexOutOfBoundsException e) {
+            // Expected
+        }
+
+        // Offset greater than klassbuf.length
+        try {
+            unsafe.defineClass(null, klassbuf, klassbuf.length + 1, klassbuf.length, classloader, pd);
+            throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException");
+        } catch (IndexOutOfBoundsException e) {
+            // Expected
+        }
+
+        // Length greater than klassbuf.length
+        try {
+            unsafe.defineClass(null, klassbuf, 0, klassbuf.length + 1, classloader, pd);
+            throw new RuntimeException("defineClass did not throw expected IndexOutOfBoundsException");
+        } catch (IndexOutOfBoundsException e) {
+            // Expected
+        }
+
+        Class klass = unsafe.defineClass(null, klassbuf, 0, klassbuf.length, classloader, pd);
+        assertEquals(klass.getClassLoader(), classloader);
+        assertEquals(klass.getProtectionDomain(), pd);
+    }
+
+    private static class TestClassLoader extends ClassLoader {
+        public TestClassLoader(ClassLoader parent) {
+            super(parent);
+        }
+
+        public TestClassLoader() {
+            super();
+        }
+    }
+}

hotspot/test/runtime/Unsafe/FieldOffset.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verifies the behaviour of Unsafe.fieldOffset
+ * @library /testlibrary
+ * @run main FieldOffset
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import java.lang.reflect.*;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class FieldOffset {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        Field fields[] = Test.class.getDeclaredFields();
+
+        for (int i = 0; i < fields.length; i++) {
+            int offset = unsafe.fieldOffset(fields[i]);
+            // Ensure we got a valid offset value back
+            assertNotEquals(offset, unsafe.INVALID_FIELD_OFFSET);
+
+            // Make sure the field offset is unique
+            for (int j = 0; j < i; j++) {
+                assertNotEquals(offset, unsafe.fieldOffset(fields[j]));
+            }
+        }
+    }
+
+    class Test {
+        boolean booleanField;
+        byte byteField;
+        char charField;
+        double doubleField;
+        float floatField;
+        int intField;
+        long longField;
+        Object objectField;
+        short shortField;
+    }
+}

hotspot/test/runtime/Unsafe/GetField.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verifies behaviour of Unsafe.getField
+ * @library /testlibrary
+ * @run main GetField
+ */
+
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import java.lang.reflect.*;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetField {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        // Unsafe.INVALID_FIELD_OFFSET is a static final int field,
+        // make sure getField returns the correct field
+        Field field = Unsafe.class.getField("INVALID_FIELD_OFFSET");
+        assertNotEquals(field.getModifiers() & Modifier.FINAL, 0);
+        assertNotEquals(field.getModifiers() & Modifier.STATIC, 0);
+        assertEquals(field.getType(), int.class);
+    }
+}

hotspot/test/runtime/Unsafe/GetPutAddress.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * Verify behaviour of Unsafe.get/putAddress and Unsafe.addressSize
+ * @library /testlibrary
+ * @run main GetPutAddress
+ */
+
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetPutAddress {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        int addressSize = unsafe.addressSize();
+        // Ensure the size returned from Unsafe.addressSize is correct
+        assertEquals(unsafe.addressSize(), Platform.is32bit() ? 4 : 8);
+
+        // Write the address, read it back and make sure it's the same value
+        long address = unsafe.allocateMemory(addressSize);
+        unsafe.putAddress(address, address);
+        long readAddress = unsafe.getAddress(address);
+        if (addressSize == 4) {
+          readAddress &= 0x00000000FFFFFFFFL;
+        }
+        assertEquals(address, readAddress);
+        unsafe.freeMemory(address);
+    }
+}

hotspot/test/runtime/Unsafe/GetPutBoolean.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verify behaviour of Unsafe.get/putBoolean
+ * @library /testlibrary
+ * @run main GetPutBoolean
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetPutBoolean {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        Test t = new Test();
+        Field field = Test.class.getField("b1");
+
+        int offset = unsafe.fieldOffset(field);
+        assertEquals(false, unsafe.getBoolean(t, offset));
+        unsafe.putBoolean(t, offset, true);
+        assertEquals(true, unsafe.getBoolean(t, offset));
+
+        boolean arrayBoolean[] = { true, false, false, true };
+        int scale = unsafe.arrayIndexScale(arrayBoolean.getClass());
+        offset = unsafe.arrayBaseOffset(arrayBoolean.getClass());
+        for (int i = 0; i < arrayBoolean.length; i++) {
+            assertEquals(unsafe.getBoolean(arrayBoolean, offset), arrayBoolean[i]);
+            offset += scale;
+        }
+    }
+
+    static class Test {
+        public boolean b1 = false;
+    }
+}

hotspot/test/runtime/Unsafe/GetPutByte.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verify behaviour of Unsafe.get/putByte
+ * @library /testlibrary
+ * @run main GetPutByte
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetPutByte {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        Test t = new Test();
+        Field field = Test.class.getField("b");
+
+        int offset = unsafe.fieldOffset(field);
+        assertEquals((byte)0, unsafe.getByte(t, offset));
+        unsafe.putByte(t, offset, (byte)1);
+        assertEquals((byte)1, unsafe.getByte(t, offset));
+
+        long address = unsafe.allocateMemory(8);
+        unsafe.putByte(address, (byte)2);
+        assertEquals((byte)2, unsafe.getByte(address));
+        unsafe.freeMemory(address);
+
+        byte arrayByte[] = { -1, 0, 1, 2 };
+        int scale = unsafe.arrayIndexScale(arrayByte.getClass());
+        offset = unsafe.arrayBaseOffset(arrayByte.getClass());
+        for (int i = 0; i < arrayByte.length; i++) {
+            assertEquals(unsafe.getByte(arrayByte, offset), arrayByte[i]);
+            offset += scale;
+        }
+    }
+
+    static class Test {
+        public byte b = 0;
+    }
+}

hotspot/test/runtime/Unsafe/GetPutChar.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verify behaviour of Unsafe.get/putChar
+ * @library /testlibrary
+ * @run main GetPutChar
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetPutChar {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        Test t = new Test();
+        Field field = Test.class.getField("c");
+
+        int offset = unsafe.fieldOffset(field);
+        assertEquals('\u0000', unsafe.getChar(t, offset));
+        unsafe.putChar(t, offset, '\u0001');
+        assertEquals('\u0001', unsafe.getChar(t, offset));
+
+        long address = unsafe.allocateMemory(8);
+        unsafe.putChar(address, '\u0002');
+        assertEquals('\u0002', unsafe.getChar(address));
+        unsafe.freeMemory(address);
+
+        char arrayChar[] = { '\uabcd', '\u00ff', '\uff00', };
+        int scale = unsafe.arrayIndexScale(arrayChar.getClass());
+        offset = unsafe.arrayBaseOffset(arrayChar.getClass());
+        for (int i = 0; i < arrayChar.length; i++) {
+            assertEquals(unsafe.getChar(arrayChar, offset), arrayChar[i]);
+            offset += scale;
+        }
+    }
+
+    static class Test {
+        public char c = '\u0000';
+    }
+}

hotspot/test/runtime/Unsafe/GetPutDouble.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verify behaviour of Unsafe.get/putDouble
+ * @library /testlibrary
+ * @run main GetPutDouble
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetPutDouble {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        Test t = new Test();
+        Field field = Test.class.getField("d");
+
+        int offset = unsafe.fieldOffset(field);
+        assertEquals(-1.0, unsafe.getDouble(t, offset));
+        unsafe.putDouble(t, offset, 0.0);
+        assertEquals(0.0, unsafe.getDouble(t, offset));
+
+        long address = unsafe.allocateMemory(8);
+        unsafe.putDouble(address, 1.0);
+        assertEquals(1.0, unsafe.getDouble(address));
+        unsafe.freeMemory(address);
+
+        double arrayDouble[] = { -1.0, 0.0, 1.0, 2.0 };
+        int scale = unsafe.arrayIndexScale(arrayDouble.getClass());
+        offset = unsafe.arrayBaseOffset(arrayDouble.getClass());
+        for (int i = 0; i < arrayDouble.length; i++) {
+            assertEquals(unsafe.getDouble(arrayDouble, offset), arrayDouble[i]);
+            offset += scale;
+        }
+    }
+
+    static class Test {
+        public double d = -1.0;
+    }
+}

hotspot/test/runtime/Unsafe/GetPutFloat.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verify behaviour of Unsafe.get/putFloat
+ * @library /testlibrary
+ * @run main GetPutFloat
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetPutFloat {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        Test t = new Test();
+        Field field = Test.class.getField("f");
+
+        int offset = unsafe.fieldOffset(field);
+        assertEquals(-1.0f, unsafe.getFloat(t, offset));
+        unsafe.putFloat(t, offset, 0.0f);
+        assertEquals(0.0f, unsafe.getFloat(t, offset));
+
+        long address = unsafe.allocateMemory(8);
+        unsafe.putFloat(address, 1.0f);
+        assertEquals(1.0f, unsafe.getFloat(address));
+        unsafe.freeMemory(address);
+
+        float arrayFloat[] = { -1.0f, 0.0f, 1.0f, 2.0f };
+        int scale = unsafe.arrayIndexScale(arrayFloat.getClass());
+        offset = unsafe.arrayBaseOffset(arrayFloat.getClass());
+        for (int i = 0; i < arrayFloat.length; i++) {
+            assertEquals(unsafe.getFloat(arrayFloat, offset), arrayFloat[i]);
+            offset += scale;
+        }
+    }
+
+    static class Test {
+        public float f = -1.0f;
+    }
+}

hotspot/test/runtime/Unsafe/GetPutInt.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @library /testlibrary
+ * @run main GetPutInt
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetPutInt {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        Test t = new Test();
+        Field field = Test.class.getField("i");
+
+        int offset = unsafe.fieldOffset(field);
+        assertEquals(-1, unsafe.getInt(t, offset));
+        unsafe.putInt(t, offset, 0);
+        assertEquals(0, unsafe.getInt(t, offset));
+
+        long address = unsafe.allocateMemory(8);
+        unsafe.putInt(address, 1);
+        assertEquals(1, unsafe.getInt(address));
+        unsafe.freeMemory(address);
+
+        int arrayInt[] = { -1, 0, 1, 2 };
+        int scale = unsafe.arrayIndexScale(arrayInt.getClass());
+        offset = unsafe.arrayBaseOffset(arrayInt.getClass());
+        for (int i = 0; i < arrayInt.length; i++) {
+            assertEquals(unsafe.getInt(arrayInt, offset), arrayInt[i]);
+            offset += scale;
+        }
+    }
+
+    static class Test {
+        public int i = -1;
+    }
+}

hotspot/test/runtime/Unsafe/GetPutLong.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verify behaviour of Unsafe.get/putLong
+ * @library /testlibrary
+ * @run main GetPutLong
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetPutLong {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        Test t = new Test();
+        Field field = Test.class.getField("l");
+
+        int offset = unsafe.fieldOffset(field);
+        assertEquals(-1L, unsafe.getLong(t, offset));
+        unsafe.putLong(t, offset, 0L);
+        assertEquals(0L, unsafe.getLong(t, offset));
+
+        long address = unsafe.allocateMemory(8);
+        unsafe.putLong(address, 1L);
+        assertEquals(1L, unsafe.getLong(address));
+        unsafe.freeMemory(address);
+
+        long arrayLong[] = { -1, 0, 1, 2 };
+        int scale = unsafe.arrayIndexScale(arrayLong.getClass());
+        offset = unsafe.arrayBaseOffset(arrayLong.getClass());
+        for (int i = 0; i < arrayLong.length; i++) {
+            assertEquals(unsafe.getLong(arrayLong, offset), arrayLong[i]);
+            offset += scale;
+        }
+    }
+
+    static class Test {
+        public long l = -1L;
+    }
+}

hotspot/test/runtime/Unsafe/GetPutObject.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verify behaviour of Unsafe.get/putObject
+ * @library /testlibrary
+ * @run main GetPutObject
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetPutObject {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        Test t = new Test();
+        Object o = new Object();
+        Field field = Test.class.getField("o");
+
+        int offset = unsafe.fieldOffset(field);
+        assertEquals(t.o, unsafe.getObject(t, offset));
+
+        unsafe.putObject(t, offset, o);
+        assertEquals(o, unsafe.getObject(t, offset));
+
+        Object arrayObject[] = { unsafe, null, new Object() };
+        int scale = unsafe.arrayIndexScale(arrayObject.getClass());
+        offset = unsafe.arrayBaseOffset(arrayObject.getClass());
+        for (int i = 0; i < arrayObject.length; i++) {
+            assertEquals(unsafe.getObject(arrayObject, offset), arrayObject[i]);
+            offset += scale;
+        }
+    }
+
+    static class Test {
+        public Object o = new Object();
+    }
+}

hotspot/test/runtime/Unsafe/GetPutShort.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verify behaviour of Unsafe.get/putShort
+ * @library /testlibrary
+ * @run main GetPutShort
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetPutShort {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        Test t = new Test();
+        Field field = Test.class.getField("s");
+
+        int offset = unsafe.fieldOffset(field);
+        assertEquals((short)-1, unsafe.getShort(t, offset));
+        unsafe.putShort(t, offset, (short)0);
+        assertEquals((short)0, unsafe.getShort(t, offset));
+
+        long address = unsafe.allocateMemory(8);
+        unsafe.putShort(address, (short)1);
+        assertEquals((short)1, unsafe.getShort(address));
+        unsafe.freeMemory(address);
+
+        short arrayShort[] = { -1, 0, 1, 2 };
+        int scale = unsafe.arrayIndexScale(arrayShort.getClass());
+        offset = unsafe.arrayBaseOffset(arrayShort.getClass());
+        for (int i = 0; i < arrayShort.length; i++) {
+            assertEquals(unsafe.getShort(arrayShort, offset), arrayShort[i]);
+            offset += scale;
+        }
+    }
+
+    static class Test {
+        public short s = -1;
+    }
+}

hotspot/test/runtime/Unsafe/GetUnsafe.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verifies that getUnsafe() actually throws SecurityException when unsafeAccess is prohibited.
+ * @library /testlibrary
+ * @run main GetUnsafe
+ */
+
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class GetUnsafe {
+    public static void main(String args[]) throws Exception {
+        try {
+            Unsafe unsafe = Unsafe.getUnsafe();
+        } catch (SecurityException e) {
+            // Expected
+            return;
+        }
+        throw new RuntimeException("Did not get expected SecurityException");
+    }
+}

hotspot/test/runtime/Unsafe/PageSize.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Make sure pageSize() returns a value that is a power of two
+ * @library /testlibrary
+ * @run main PageSize
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class PageSize {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        int pageSize = unsafe.pageSize();
+
+        for (int n = 1; n != 0; n <<= 1) {
+            if (pageSize == n) {
+                return;
+            }
+        }
+        throw new RuntimeException("Expected pagesize to be a power of two, actual pagesize:" + pageSize);
+    }
+}

hotspot/test/runtime/Unsafe/SetMemory.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verifies that setMemory works correctly
+ * @library /testlibrary
+ * @run main SetMemory
+ */
+
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class SetMemory {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        long address = unsafe.allocateMemory(1);
+        assertNotEquals(address, 0L);
+        unsafe.setMemory(address, 1, (byte)17);
+        assertEquals((byte)17, unsafe.getByte(address));
+        unsafe.freeMemory(address);
+    }
+}

hotspot/test/runtime/Unsafe/ThrowException.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+/*
+ * @test
+ * @summary Verify that throwException() can throw an exception
+ * @library /testlibrary
+ * @run main ThrowException
+ */
+
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class ThrowException {
+    public static void main(String args[]) throws Exception {
+        Unsafe unsafe = Utils.getUnsafe();
+        try {
+            unsafe.throwException(new TestException());
+        } catch (Throwable t) {
+            if (t instanceof TestException) {
+                return;
+            }
+            throw t;
+        }
+        throw new RuntimeException("Did not throw expected TestException");
+    }
+    static class TestException extends Exception {}
+}