RFR: 8341587: [premain] Support Soft/Weak Reference in AOT cache

[Chen Liang]

On Wed, 12 Feb 2025 22:16:04 GMT, Mat Carter <macarte at openjdk.org> wrote:

> Add support to the AOT cache for References (soft, weak and phantom)
> Remove the workarounds that were added because References weren't supported
> 
> Confirmed from logs that References are stored in the cache correctly
> 
> All demos run successfully on osx

src/java.base/share/classes/java/lang/invoke/MethodType.java line 398:

> 396:         MethodType mt = internTable.get(primordialMT);
> 397:         if (mt != null)
> 398:         {

This left brace does not follow the code style in this file. Either remove this pair of brace or make it `if (mt != null) {`

src/java.base/share/classes/java/lang/invoke/MethodTypeForm.java line 134:

> 132:     @SuppressWarnings({"rawtypes", "unchecked"})
> 133:     public LambdaForm cachedLambdaForm(int which) {
> 134:         Object entry = lambdaForms[which];

I recommend restoring the static types of the arrays to `SoftReference<MethodHandle>[]` unless there is extra overhead from loading/initialization of `SoftReference` class.

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PR Review Comment: https://git.openjdk.org/leyden/pull/41#discussion_r1960851231
PR Review Comment: https://git.openjdk.org/leyden/pull/41#discussion_r1960850319