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test/testlibrary/whitebox/sun/hotspot/WhiteBox.java@ede380e13960 (annotated)

test/testlibrary/whitebox/sun/hotspot/WhiteBox.java

Tue, 02 Apr 2013 11:28:33 +0200

author

mgerdin

date

Tue, 02 Apr 2013 11:28:33 +0200

changeset 4850

ede380e13960

parent 4637

1b0dc9f87e75

child 4885

3b890cd4da64

child 4908

b84fd7d73702

child 4916

b0301c02f38e

permissions

-rw-r--r--

8009763: Add WB test for String.intern()
Summary: Add convenience method in StringTable, add WhiteBox method and simple sanity test
Reviewed-by: mgerdin, zgu
Contributed-by: leonid.mesnik@oracle.com

mgerdin@3619	1	/*
mgerdin@4637	2	* Copyright (c) 2012, 2013 Oracle and/or its affiliates. All rights reserved.
mgerdin@3619	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
mgerdin@3619	4	*
mgerdin@3619	5	* This code is free software; you can redistribute it and/or modify it
mgerdin@3619	6	* under the terms of the GNU General Public License version 2 only, as
mgerdin@3619	7	* published by the Free Software Foundation.
mgerdin@3619	8	*
mgerdin@3619	9	* This code is distributed in the hope that it will be useful, but WITHOUT
mgerdin@3619	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
mgerdin@3619	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
mgerdin@3619	12	* version 2 for more details (a copy is included in the LICENSE file that
mgerdin@3619	13	* accompanied this code).
mgerdin@3619	14	*
mgerdin@3619	15	* You should have received a copy of the GNU General Public License version
mgerdin@3619	16	* 2 along with this work; if not, write to the Free Software Foundation,
mgerdin@3619	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
mgerdin@3619	18	*
mgerdin@3619	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
mgerdin@3619	20	* or visit www.oracle.com if you need additional information or have any
mgerdin@3619	21	* questions.
mgerdin@3619	22	*
mgerdin@3619	23	*/
mgerdin@3619	24
mgerdin@3619	25	package sun.hotspot;
iignatyev@4592	26
iignatyev@4592	27	import java.lang.reflect.Method;
mgerdin@3619	28	import java.security.BasicPermission;
nloodin@3681	29	import sun.hotspot.parser.DiagnosticCommand;
mgerdin@3619	30
mgerdin@3619	31	public class WhiteBox {
mgerdin@3619	32
mgerdin@3619	33	@SuppressWarnings("serial")
mgerdin@3619	34	public static class WhiteBoxPermission extends BasicPermission {
mgerdin@3619	35	public WhiteBoxPermission(String s) {
mgerdin@3619	36	super(s);
mgerdin@3619	37	}
mgerdin@3619	38	}
mgerdin@3619	39
mgerdin@3619	40	private WhiteBox() {}
mgerdin@3619	41	private static final WhiteBox instance = new WhiteBox();
mgerdin@3619	42	private static native void registerNatives();
mgerdin@3619	43
mgerdin@3619	44	/**
mgerdin@3619	45	* Returns the singleton WhiteBox instance.
mgerdin@3619	46	*
mgerdin@3619	47	* The returned WhiteBox object should be carefully guarded
mgerdin@3619	48	* by the caller, since it can be used to read and write data
mgerdin@3619	49	* at arbitrary memory addresses. It must never be passed to
mgerdin@3619	50	* untrusted code.
mgerdin@3619	51	*/
mgerdin@3619	52	public synchronized static WhiteBox getWhiteBox() {
mgerdin@3619	53	SecurityManager sm = System.getSecurityManager();
mgerdin@3619	54	if (sm != null) {
mgerdin@3619	55	sm.checkPermission(new WhiteBoxPermission("getInstance"));
mgerdin@3619	56	}
mgerdin@3619	57	return instance;
mgerdin@3619	58	}
mgerdin@3619	59
mgerdin@3619	60	static {
mgerdin@3619	61	registerNatives();
mgerdin@3619	62	}
mgerdin@3619	63
mgerdin@3619	64	// Memory
mgerdin@3619	65	public native long getObjectAddress(Object o);
mgerdin@3619	66	public native int getHeapOopSize();
mgerdin@3619	67
coleenp@4037	68	// Runtime
coleenp@4037	69	// Make sure class name is in the correct format
coleenp@4037	70	public boolean isClassAlive(String name) {
coleenp@4037	71	return isClassAlive0(name.replace('.', '/'));
coleenp@4037	72	}
coleenp@4037	73	private native boolean isClassAlive0(String name);
coleenp@4037	74
mgerdin@3619	75	// G1
mgerdin@3619	76	public native boolean g1InConcurrentMark();
mgerdin@3619	77	public native boolean g1IsHumongous(Object o);
mgerdin@3619	78	public native long g1NumFreeRegions();
mgerdin@3619	79	public native int g1RegionSize();
nloodin@3681	80	public native Object[] parseCommandLine(String commandline, DiagnosticCommand[] args);
ctornqvi@4512	81
ctornqvi@4512	82	// NMT
ctornqvi@4512	83	public native boolean NMTAllocTest();
ctornqvi@4512	84	public native boolean NMTFreeTestMemory();
ctornqvi@4512	85	public native boolean NMTWaitForDataMerge();
iignatyev@4592	86
iignatyev@4592	87	// Compiler
iignatyev@4592	88	public native void deoptimizeAll();
iignatyev@4592	89	public native boolean isMethodCompiled(Method method);
iignatyev@4592	90	public native boolean isMethodCompilable(Method method);
iignatyev@4592	91	public native boolean isMethodQueuedForCompilation(Method method);
iignatyev@4592	92	public native int deoptimizeMethod(Method method);
iignatyev@4592	93	public native void makeMethodNotCompilable(Method method);
iignatyev@4592	94	public native int getMethodCompilationLevel(Method method);
iignatyev@4592	95	public native boolean setDontInlineMethod(Method method, boolean value);
iignatyev@4592	96	public native int getCompileQueuesSize();
mgerdin@4850	97
mgerdin@4850	98	//Intered strings
mgerdin@4850	99	public native boolean isInStringTable(String str);
mgerdin@4850	100
mgerdin@4850	101	// force Full GC
mgerdin@4850	102	public native void fullGC();
mgerdin@3619	103	}