Chen Liang

8366270: [lworld] Fix ClassFile AccessFlagsTest

4

This is the Valhalla version of [JDK-8337220](https://bugs.openjdk.org/browse/JDK-8337220). We pass the class file version in ClassFile structures for correct access flag validation. Since we are a few tags behind there will...

8367792: [lworld] Remove the Unsafe remnants of old valhalla prototypes

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There are some remnants from previous iterations of value objects in Unsafe. We should aim to remove them for cleaner code in the future. --------- ### Progress - [x] Change...

8372845: C2: Fold identity hash code if object is constant

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Folding identity hash as constant if the incoming argument is constant would be useful for quick map lookups, such as for the [Classifier proposal](https://openjdk.org/jeps/8357674). Currently, identity hash is not constant...

8160821: VarHandle accesses are penalized when argument conversion is required

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Since access descriptor is created for each VH operation site, we can optimistically cache the adapted method handle in a site if the site operates on a constant VH. Used...

8371795: Improve documentation of Class.isInstance

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The 3 methods to determine conversions and subtyping on `java.lang.Class`, which are `isInstance`, `cast`, and `isAssignableFrom`, have their documentation from the earliest days of the Java Platform. During the language...

Matcher seems to lose params and javadoc info when moving members

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Examples: https://github.com/FabricMC/yarn/commit/414cedb22f8cb477719f6e1789dfad04108d75fa#diff-73a11ecff5477b460d191d612ad8a47f4d1a7895673479fc8d79d4e6dd2d916bL211-L221 https://github.com/FabricMC/yarn/commit/414cedb22f8cb477719f6e1789dfad04108d75fa#r48954183 https://github.com/FabricMC/yarn/commit/252ad11d0a258a0603ef0a1b2fe5b31d8c913ccc#diff-90e8775ba246959b4310b4541dd3a9edc17c65742170117a0883d37f2362b6f0L3-L12 https://github.com/FabricMC/yarn/commit/252ad11d0a258a0603ef0a1b2fe5b31d8c913ccc#diff-75840641e62ae4fe1a1d946c90c20e28d53ed8f8b0d62ecd2134251e8f218917R2

In matching for 20w12a, Mojang abstracted `Block` class and moved many methods to a new class, which is a new superclass for `Block`. Matcher apparently cannot match those moved up...