Fusion Refactor seem to cause bytecode error with Java 25

dev support
1

Finally found an example from yesterday. The exceptions look something like the attached.

lucee_stackmap_exception_example.log (70.4 KB)

2

ahhhhh, bytecode error and fusion reactor! fusion reactor rewrites the bytecode

does it happen without FR? which version of fusion reactor agent are you running?

3

https://luceeserver.atlassian.net/browse/LDEV-6220

4

FR v2025.2.1 & temurin-jdk-25.0.2+10 (64-bit).

All of our servers have FR on them, so can’t say if the problem happens without it or not.

5

FR 2025.2.1 officially supports JDK 8-21 only (per their docs)

I’ve done some further digging and found what i think is the problem and I have contacted FR with my findings

6

If necessary, you can nuclear option fix the log spam with "checkForChanges":false in .cfConfig.json while waiting for LDEV-6220.