Mask native elements for MRI backtrace#9155
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At some point, we started including native .java lines in the MRI- formatted trace. This was probably unintended, since MRI-format traces should always follow CRuby's standard of replacing native call frames with the most recent Ruby frame. See jruby#9154 for some discussion of filtering and omitting internal frames (that PR is about Ruby, but the same filtering already applied to native frames used in `caller`). This patch uses the same backtrace gathering logic for the MRI format as it does for `caller`, since in both cases users expect not to see .java frames for internal methods, and now with Ruby 4.0 they will also expect not to see internal Ruby sources.
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This has been rebased against master to avoid 4.0 failing tests hiding whether it breaks anything. It should NOT be applied to JRuby 10.0.x. |
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This PR builds off of #9154 by also masking internal frames for MRI-formatted backtrace elements. It appears at some point we started showing Java lines in the MRI-formatted trace:
This differs from user expectations and the contents of
callertraces, which both filter out internal methods (native or Ruby) by replacing them with the most recent external Ruby frame (CRuby also implementsInteger#/in native code):The patch here simply uses the
callerbacktrace-gathering logic for the MRI-mode backtrace data.This is opened as a draft because I'm unsure how long this behavior has been broken, and I'm not sure what impact fixing it will have yet. Being based on #9154, that PR should be merged first, but this one needs more evaluation.