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8245309: Re-examine use of ThreadLocalCoders in sun.net.www.ParseUtil

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Reviewed-by: shade, dfuchs, alanb, chegar
This commit is contained in:
Julia Boes 2020-09-16 10:49:13 +00:00
parent 60c4902f61
commit e0cf023263
2 changed files with 87 additions and 9 deletions
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test/micro/org/openjdk/bench/java/net/ThreadLocalParseUtil.java Normal file
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/*
* Copyright (c) 2020, 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.
*/
package org.openjdk.bench.java.net;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.CompilerControl;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Setup;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.net.URI;
import java.net.URL;
import java.util.concurrent.TimeUnit;
import static java.lang.invoke.MethodType.methodType;
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@State(Scope.Thread)
@Fork(value = 1, jvmArgsAppend = "--add-exports=java.base/sun.net.www=ALL-UNNAMED")
public class ThreadLocalParseUtil {
private static final MethodHandle MH_DECODE;
private static final MethodHandle MH_TO_URI;
static {
final MethodHandles.Lookup lookup = MethodHandles.lookup();
try {
Class<?> c = Class.forName("sun.net.www.ParseUtil");
MH_DECODE = lookup.findStatic(c, "decode", methodType(String.class, String.class));
MH_TO_URI = lookup.findStatic(c, "toURI", methodType(URI.class, URL.class));
} catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException e) {
throw new ExceptionInInitializerError(e);
}
}
@Benchmark
public String decodeTest() throws Throwable {
return (String) MH_DECODE.invokeExact("/xyz/\u00A0\u00A0");
}
@Benchmark
public URI appendEncodedTest() throws Throwable {
URL url = new URL("https://example.com/xyz/abc/def?query=#30");
return (URI) MH_TO_URI.invokeExact(url);
}
}