The code is based on this commit, just updated vendor / manifest:
https://github.com/iloveeclipse/bytecodeoutline/commit/9fe31d0fb7a0094775bc1d860b773b9907a0a287

See
- https://github.com/iloveeclipse/bytecodeoutline/issues/8
- https://github.com/eclipse-jdt/eclipse.jdt.ui/issues/364