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8243287: Removal of Unsafe::defineAnonymousClass

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Reviewed-by: iklam, mchung, alanb, dholmes
This commit is contained in:
Harold Seigel 2021-05-13 12:46:54 +00:00
parent a564f2cbd5
commit e14b026841
122 changed files with 328 additions and 3679 deletions
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41
test/micro/org/openjdk/bench/java/lang/invoke/LookupDefineClass.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2020, 2021, 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
@ -285,45 +285,6 @@ public class LookupDefineClass {
}
}
@State(Scope.Thread)
@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@Fork(3)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public static class UnsafeAnonymousClass {
static final sun.misc.Unsafe unsafe = getUnsafe();
private static final MethodHandles.Lookup lookup =
defineHostClass(new Loader("anonymous-class-loader"),"foo.AnonymousHost", FOO_HOST_BYTES);
@SuppressWarnings("removal")
@Benchmark
public Class<?> load() throws ClassNotFoundException {
return unsafe.defineAnonymousClass(lookup.lookupClass(), X_BYTECODE, null);
}
public static void main(String[] args) throws RunnerException {
Options opt = new OptionsBuilder()
.include(LookupDefineClass.UnsafeAnonymousClass.class.getSimpleName())
// .addProfiler(ClassloaderProfiler.class)
// .addProfiler(CompilerProfiler.class)
.build();
new Runner(opt).run();
}
}
static sun.misc.Unsafe getUnsafe() {
try {
Field f = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
f.setAccessible(true);
return (sun.misc.Unsafe)f.get(null);
} catch (ReflectiveOperationException e) {
throw new RuntimeException(e);
}
}
@State(Scope.Thread)
@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)