jdk-sandbox: hotspot/test/runtime/Unsafe/GetKlassPointerGetJavaMirror.java@476c276de939 (annotated)

30288 476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	1	/*
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	2	* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	4	*
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	5	* This code is free software; you can redistribute it and/or modify it
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	6	* under the terms of the GNU General Public License version 2 only, as
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	7	* published by the Free Software Foundation.
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	8	*
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	9	* This code is distributed in the hope that it will be useful, but WITHOUT
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	12	* version 2 for more details (a copy is included in the LICENSE file that
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	13	* accompanied this code).
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	14	*
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	15	* You should have received a copy of the GNU General Public License version
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	16	* 2 along with this work; if not, write to the Free Software Foundation,
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	18	*
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	20	* or visit www.oracle.com if you need additional information or have any
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	21	* questions.
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	22	*/
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	23
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	24	/* @test
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	25	* @bug 8022853
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	26	* @library /testlibrary
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	27	* @modules java.base/sun.misc
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	28	* @run main GetKlassPointerGetJavaMirror
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	29	*/
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	30
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	31	import static com.oracle.java.testlibrary.Asserts.*;
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	32
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	33	import com.oracle.java.testlibrary.*;
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	34	import sun.misc.Unsafe;
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	35
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	36	public class GetKlassPointerGetJavaMirror {
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	37
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	38	public static void main(String args[]) throws Exception {
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	39	Unsafe unsafe = Utils.getUnsafe();
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	40	Object o = new GetKlassPointerGetJavaMirror();
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	41	final long metaspaceKlass = unsafe.getKlassPointer(o);
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	42	Class<?> c = unsafe.getJavaMirror(metaspaceKlass);
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	43	assertEquals(o.getClass(), c);
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	44	}
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	45
476c276de939 8022853: add ability to load uncompressed object and Klass references in a compressed environment to Unsafe twisti parents: diff changeset	46	}

author	twisti
	Mon, 27 Apr 2015 09:02:41 -0700
changeset 30288	476c276de939
child 30604	b8d532cb6420
permissions	-rw-r--r--