undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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test/micro/org/openjdk/bench/java/lang/StringDecode.java
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test/micro/org/openjdk/bench/java/lang/StringDecode.java
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/*
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* Copyright (c) 2021, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.openjdk.bench.java.lang;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.infra.Blackhole;
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import java.nio.charset.Charset;
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import java.util.concurrent.TimeUnit;
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@BenchmarkMode(Mode.AverageTime)
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@OutputTimeUnit(TimeUnit.NANOSECONDS)
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@Fork(value = 2)
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@Warmup(iterations = 5, time = 3)
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@Measurement(iterations = 5, time = 3)
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@State(Scope.Thread)
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public class StringDecode {
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// Reduced by default to only UTF-8, previous coverage:
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// @Param({"US-ASCII", "ISO-8859-1", "UTF-8", "MS932", "ISO-8859-6", "ISO-2022-KR"})
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@Param({"UTF-8"})
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private String charsetName;
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private Charset charset;
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private byte[] asciiString;
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private byte[] longAsciiString;
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private byte[] utf16String;
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private byte[] longUtf16EndString;
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private byte[] longUtf16StartString;
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private byte[] longUtf16OnlyString;
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private byte[] latin1String;
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private byte[] longLatin1EndString;
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private byte[] longLatin1StartString;
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private byte[] longLatin1OnlyString;
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private static final String LOREM = """
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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam ac sem eu
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urna egestas placerat. Etiam finibus ipsum nulla, non mattis dolor cursus a.
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Nulla nec nisl consectetur, lacinia neque id, accumsan ante. Curabitur et
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sapien in magna porta ultricies. Sed vel pellentesque nibh. Pellentesque dictum
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dignissim diam eu ultricies. Class aptent taciti sociosqu ad litora torquent
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per conubia nostra, per inceptos himenaeos. Suspendisse erat diam, fringilla
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sed massa sed, posuere viverra orci. Suspendisse tempor libero non gravida
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efficitur. Vivamus lacinia risus non orci viverra, at consectetur odio laoreet.
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Suspendisse potenti.""";
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private static final String UTF16_STRING = "\uFF11".repeat(31);
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private static final String LATIN1_STRING = "\u00B6".repeat(31);
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@Setup
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public void setup() {
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charset = Charset.forName(charsetName);
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asciiString = LOREM.substring(0, 32).getBytes(charset);
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longAsciiString = LOREM.repeat(200).getBytes(charset);
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utf16String = "UTF-\uFF11\uFF16 string".getBytes(charset);
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longUtf16EndString = LOREM.repeat(4).concat(UTF16_STRING).getBytes(charset);
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longUtf16StartString = UTF16_STRING.concat(LOREM.repeat(4)).getBytes(charset);
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longUtf16OnlyString = UTF16_STRING.repeat(10).getBytes(charset);
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latin1String = LATIN1_STRING.getBytes(charset);
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longLatin1EndString = LOREM.repeat(4).concat(LATIN1_STRING).getBytes(charset);
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longLatin1StartString = LATIN1_STRING.concat(LOREM.repeat(4)).getBytes(charset);
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longLatin1OnlyString = LATIN1_STRING.repeat(10).getBytes(charset);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void decodeAsciiShort(Blackhole bh) throws Exception {
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bh.consume(new String(asciiString, charset));
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bh.consume(new String(longAsciiString, 0, 15, charset));
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bh.consume(new String(asciiString, 0, 3, charset));
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bh.consume(new String(longAsciiString, 512, 7, charset));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void decodeAsciiLong(Blackhole bh) throws Exception {
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bh.consume(new String(longAsciiString, charset));
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bh.consume(new String(longAsciiString, 0, 1024 + 31, charset));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void decodeLatin1Short(Blackhole bh) throws Exception {
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bh.consume(new String(latin1String, charset));
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bh.consume(new String(latin1String, 0, 15, charset));
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bh.consume(new String(latin1String, 0, 3, charset));
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bh.consume(new String(longLatin1OnlyString, 512, 7, charset));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public String decodeLatin1LongStart() throws Exception {
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return new String(longLatin1StartString, charset);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public String decodeLatin1LongEnd() throws Exception {
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return new String(longLatin1EndString, charset);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public String decodeLatin1LongOnly() throws Exception {
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return new String(longLatin1OnlyString, charset);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void decodeLatin1Mixed(Blackhole bh) throws Exception {
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bh.consume(new String(longLatin1EndString, charset));
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bh.consume(new String(longLatin1StartString, charset));
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bh.consume(new String(latin1String, charset));
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bh.consume(new String(longLatin1OnlyString, charset));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void decodeUTF16Short(Blackhole bh) throws Exception {
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bh.consume(new String(utf16String, charset));
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bh.consume(new String(utf16String, 0, 15, charset));
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bh.consume(new String(utf16String, 0, 3, charset));
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bh.consume(new String(utf16String, 0, 7, charset));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public String decodeUTF16LongEnd() throws Exception {
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return new String(longUtf16EndString, charset);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public String decodeUTF16LongStart() throws Exception {
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return new String(longUtf16StartString, charset);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public String decodeUTF16LongOnly() throws Exception {
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return new String(longUtf16OnlyString, charset);
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void decodeUTF16Mixed(Blackhole bh) throws Exception {
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bh.consume(new String(longUtf16StartString, charset));
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bh.consume(new String(longUtf16EndString, charset));
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bh.consume(new String(utf16String, charset));
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bh.consume(new String(longUtf16OnlyString, charset));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void decodeAllMixed(Blackhole bh) throws Exception {
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bh.consume(new String(utf16String, charset));
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bh.consume(new String(longUtf16EndString, charset));
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bh.consume(new String(utf16String, 0, 15, charset));
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bh.consume(new String(longUtf16StartString, charset));
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bh.consume(new String(asciiString, 0, 3, charset));
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bh.consume(new String(longUtf16OnlyString, charset));
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bh.consume(new String(latin1String, charset));
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bh.consume(new String(longLatin1EndString, charset));
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bh.consume(new String(longLatin1StartString, charset));
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bh.consume(new String(latin1String, 0, 7, charset));
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bh.consume(new String(longLatin1OnlyString, charset));
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bh.consume(new String(asciiString, charset));
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bh.consume(new String(longAsciiString, charset));
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}
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@Benchmark
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@CompilerControl(CompilerControl.Mode.DONT_INLINE)
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public void decodeShortMixed(Blackhole bh) throws Exception {
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bh.consume(new String(utf16String, 0, 15, charset));
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bh.consume(new String(latin1String, 0, 15, charset));
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bh.consume(new String(asciiString, charset));
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bh.consume(new String(utf16String, charset));
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bh.consume(new String(latin1String, 0, 3, charset));
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bh.consume(new String(asciiString, 0, 3, charset));
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bh.consume(new String(utf16String, 0, 7, charset));
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bh.consume(new String(latin1String, charset));
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bh.consume(new String(asciiString, 0, 7, charset));
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bh.consume(new String(utf16String, 0, 3, charset));
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bh.consume(new String(latin1String, 0, 7, charset));
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bh.consume(new String(asciiString, 0, 15, charset));
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}
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}
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