RFR: 8364360: Defining hidden class with no room in constant pool crashes the VM [v2]

[Coleen Phillimore]

On Mon, 27 Oct 2025 23:28:00 GMT, Chen Liang <liach at openjdk.org> wrote:

>> This is a magic number.  65536-5 gets CFE: class too large, 65536-7 doesn't get an CFE.  Only 65536-6 caused the overflow.  This is asm so asm may only be adding 6 entries.  I kept the test as ASM rather than using ClassFile API because it might be good to backport this.
>
> If we have such a sensitive dependency on the CP size, we might consider opening up the `symbolTable.getConstantPoolCount()` on the `ClassWriter` for better testing, or use the ClassFile API that has a similar fine-grained control over constant pool sizes.
> 
> I can help you update ASM or rewrite in ClassFile API if the Java code is too complex for you.

@liach  I have no idea how to do this, can you help?

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PR Review Comment: https://git.openjdk.org/jdk/pull/27964#discussion_r2469298381