On Wed, 1 Apr 2026 17:22:55 GMT, Igor Veresov <[email protected]> wrote:
>> The problem here is that after method redefinition we still retain an MTD >> object pointing to the old `Method*`. When this old method is eventually >> GCed we end up with a dangling pointer, which when dereferenced leads >> potentially to a crash if this area of metaspace has been overwritten by >> something else. >> >> The solution is to remove pointers to redefined Methods and Klasses from the >> training data after redefinition and preventing the re-addition of those >> again. I also added some verification to check the training data stays clean. >> >> This change will go in after #30517 is pushed. > > Igor Veresov has updated the pull request incrementally with one additional > commit since the last revision: > > Fix no-CDS build Looks good to me. ------------- Marked as reviewed by kvn (Reviewer). PR Review: https://git.openjdk.org/jdk/pull/30540#pullrequestreview-4046304843
