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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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21
test/hotspot/jtreg/runtime/HiddenClasses/CastToParentTest.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
@ -24,6 +24,12 @@
/*
* @test
* @summary Test that a hidden class can be cast to its parent.
* DESCRIPTION
* Try to cast an object of a hidden class to its parent (called CastToParentTest)
* - (CastToParentTest) o
* - o.getClass().cast(<hiddenClassObj>);
* and cast to its grandparent (java.lang.Object).
*
* @library /test/lib
* @modules jdk.compiler
* @run main CastToParentTest
@ -35,7 +41,6 @@ import java.lang.invoke.MethodHandles.Lookup;
import static java.lang.invoke.MethodHandles.Lookup.ClassOption.*;
import jdk.test.lib.compiler.InMemoryJavaCompiler;
// This test is based on vmTestbase/vm/mlvm/anonloader/func/castToGrandparent/Test.java
public class CastToParentTest {
static byte klassbuf[] = InMemoryJavaCompiler.compile("TestClass",
@ -58,5 +63,17 @@ public class CastToParentTest {
// Try to cast using a different mechanism.
new CastToParentTest().getClass().cast(hiddenClassObj);
// Cast hidden class to its grandparent.
java.lang.Object grandparentObj = (java.lang.Object)hiddenClassObj;
if (!grandparentObj.equals(hiddenClassObj)) {
throw new RuntimeException("Hidden class object cannot be cast to grandparent");
}
// Try to cast using a different mechanism.
new java.lang.Object().getClass().cast(hiddenClassObj);
}
}