Hi, when running the minitest test suite with JRuby 10, there are test failures due to a minor inconsistency with CRuby.

Minimal script:

p Marshal.dump(binding)

Environment Information

• jruby 10.0.0.0 (3.4.2) 2025-04-13 6ed59bc OpenJDK 64-Bit Server VM 21.0.6 on 21.0.6 +indy +jit [arm64-darwin]
• macOS 15.4.1 arm64

Expected Behavior

CRuby raises no _dump_data is defined for class Binding (TypeError).

Actual Behavior

JRuby outputs "\x04\bo:\fBinding\x00" (no error).