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test/serviceability/jvmti/GetObjectSizeOverflow.java@997fd9660dd5 (annotated)

test/serviceability/jvmti/GetObjectSizeOverflow.java

Thu, 22 May 2014 09:12:29 +0200

author

allwin

date

Thu, 22 May 2014 09:12:29 +0200

changeset 6689

997fd9660dd5

child 6717

09f19d3de485

permissions

-rw-r--r--

8027230: Overflow in java.lang.instrument.Instrumentation.getObjectSize() method
Reviewed-by: dholmes, sspitsyn

allwin@6689	1	/*
allwin@6689	2	* Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved.
allwin@6689	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
allwin@6689	4	*
allwin@6689	5	* This code is free software; you can redistribute it and/or modify it
allwin@6689	6	* under the terms of the GNU General Public License version 2 only, as
allwin@6689	7	* published by the Free Software Foundation.
allwin@6689	8	*
allwin@6689	9	* This code is distributed in the hope that it will be useful, but WITHOUT
allwin@6689	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
allwin@6689	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
allwin@6689	12	* version 2 for more details (a copy is included in the LICENSE file that
allwin@6689	13	* accompanied this code).
allwin@6689	14	*
allwin@6689	15	* You should have received a copy of the GNU General Public License version
allwin@6689	16	* 2 along with this work; if not, write to the Free Software Foundation,
allwin@6689	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
allwin@6689	18	*
allwin@6689	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
allwin@6689	20	* or visit www.oracle.com if you need additional information or have any
allwin@6689	21	* questions.
allwin@6689	22	*/
allwin@6689	23	import java.io.PrintWriter;
allwin@6689	24	import com.oracle.java.testlibrary.*;
allwin@6689	25
allwin@6689	26	/*
allwin@6689	27	* Test to verify GetObjectSize does not overflow on a 600M element int[]
allwin@6689	28	*
allwin@6689	29	* @test
allwin@6689	30	* @bug 8027230
allwin@6689	31	* @library /testlibrary
allwin@6689	32	* @build GetObjectSizeOverflowAgent
allwin@6689	33	* @run main ClassFileInstaller GetObjectSizeOverflowAgent
allwin@6689	34	* @run main GetObjectSizeOverflow
allwin@6689	35	*/
allwin@6689	36	public class GetObjectSizeOverflow {
allwin@6689	37	public static void main(String[] args) throws Exception {
allwin@6689	38
allwin@6689	39	if (!Platform.is64bit()) {
allwin@6689	40	System.out.println("Test needs a 4GB heap and can only be run as a 64bit process, skipping.");
allwin@6689	41	return;
allwin@6689	42	}
allwin@6689	43
allwin@6689	44	PrintWriter pw = new PrintWriter("MANIFEST.MF");
allwin@6689	45	pw.println("Premain-Class: GetObjectSizeOverflowAgent");
allwin@6689	46	pw.close();
allwin@6689	47
allwin@6689	48	ProcessBuilder pb = new ProcessBuilder();
allwin@6689	49	pb.command(new String[] { JDKToolFinder.getJDKTool("jar"), "cmf", "MANIFEST.MF", "agent.jar", "GetObjectSizeOverflowAgent.class"});
allwin@6689	50	pb.start().waitFor();
allwin@6689	51
allwin@6689	52	ProcessBuilder pt = ProcessTools.createJavaProcessBuilder(true, "-Xmx4000m", "-javaagent:agent.jar", "GetObjectSizeOverflowAgent");
allwin@6689	53	OutputAnalyzer output = new OutputAnalyzer(pt.start());
allwin@6689	54
allwin@6689	55	if (output.getStdout().contains("Could not reserve enough space") || output.getStderr().contains("java.lang.OutOfMemoryError")) {
allwin@6689	56	System.out.println("stdout: " + output.getStdout());
allwin@6689	57	System.out.println("stderr: " + output.getStderr());
allwin@6689	58	System.out.println("Test could not reserve or allocate enough space, skipping");
allwin@6689	59	return;
allwin@6689	60	}
allwin@6689	61
allwin@6689	62	output.stdoutShouldContain("GetObjectSizeOverflow passed");
allwin@6689	63	}
allwin@6689	64	}