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test: ensure Rails activerecord compatibility with JRuby 10.1 #623

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test: ensure Rails activerecord compatibility with JRuby 10.1 #623

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15 changes: 15 additions & 0 deletions ...ation/rails7_test/src/main/ruby/config/initializers/java_throwable_backtrace_locations.rb
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if defined?(Java)
Java::JavaLang::Throwable.class_eval do
# Ruby's #backtrace_locations isn't defined on Java Throwables. Rails 7.2's
# ActionDispatch::ExceptionWrapper#build_backtrace assumes it exists, and the
# NoMethodError it raises masks the real underlying Java exception (see actionpack/lib/action_dispatch/middleware/exception_wrapper.rb:269)
# https://github.com/jruby/jruby/blob/2e078cd889f0a025ff607d9919f3dfdf9bf24390/core/src/main/java/org/jruby/javasupport/ext/JavaLang.java#L221
#
# This at least allows us to get the message, even though there is no backtrace.
def backtrace_locations
warn "unsupported backtrace_locations access for #{self.inspect}, dumping normal backtrace; and returning empty"
puts self.backtrace
return []
end
end
end