Integrated: 8375571: Compiler crash when using record pattern matching with a generic type parameter shadowing a record class

[Jan Lahoda]

On Mon, 26 Jan 2026 09:06:19 GMT, Jan Lahoda <jlahoda at openjdk.org> wrote:

> Consider code like:
> 
>     <T> void typeVarTest(T p) {
>         if (p instanceof T(int i) && i == 0); //T is a type variable
>     }
> 
> 
> The `T` in the deconstruction pattern will be resolve to `TypeVariableSymbol`, which has kind `TYP`, but is not `ClassSymbol`, so the cast will fail. Using `instanceof ClassSymbol` would work better, which is what this PR is doing.

This pull request has now been integrated.

Changeset: 9fef14a6
Author:    Jan Lahoda <jlahoda at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/9fef14a6d3124fae3ad8b24dac5103aa611d4edb
Stats:     30 lines in 3 files changed: 7 ins; 1 del; 22 mod

8375571: Compiler crash when using record pattern matching with a generic type parameter shadowing a record class

Reviewed-by: vromero

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PR: https://git.openjdk.org/jdk/pull/29407