RFR: 8208752: Calling a deserialized Lambda might fail with ClassCastException [v3]

Liam Miller-Cushon cushon at openjdk.org
Mon Jan 19 22:10:44 UTC 2026


> See [JDK-8208752: Calling a deserialized Lambda might fail with ClassCastException](https://bugs.openjdk.org/browse/JDK-8208752).
> 
> Lambda deserialization currently does not consider `SerializedLambda#getInstantiatedMethodType` when deserializing lambdas, which can lead to method references that differ only in `getInstantiatedMethodType` being merged into the same lambda instance, and can result in `ClassCastException`s like the one reported in the bug.
> 
> This depends on the fix for [JDK-8374654: Inconsistent handling of lambda deserialization for Object method references on interfaces](https://bugs.openjdk.org/browse/JDK-8374654) in https://github.com/openjdk/jdk/pull/29075.

Liam Miller-Cushon has updated the pull request incrementally with two additional commits since the last revision:

 - Merge branch 'JDK-8374654' into JDK-8208752
 - Only resolve object methods on interfaces

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/28943/files
  - new: https://git.openjdk.org/jdk/pull/28943/files/10ee13db..1f803bcc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28943&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28943&range=01-02

  Stats: 28 lines in 2 files changed: 22 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/28943.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28943/head:pull/28943

PR: https://git.openjdk.org/jdk/pull/28943


More information about the compiler-dev mailing list