Uninitialized constant -- already exists #6139
Description
Running into an interesting exception when running our code packaged in a JAR
Did you mean? ActiveSupport::SafeBuffer
Did you mean? ActiveSupport::SafeBuffer
org/jruby/RubyModule.java:3370:in `const_missing'
uri:classloader:/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/output_safety.rb:260:in `html_safe'
uri:classloader:/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/output_safety.rb:22:in `html_escape'
uri:classloader:/bundler/gems/diffy-de8b86845039/lib/diffy/html_formatter.rb:88:in `block in highlighted_words'
org/jruby/RubyArray.java:1735:in `each'
org/jruby/RubyEnumerable.java:1067:in `each_with_index'
org/jruby/RubyEnumerator.java:323:in `each'
org/jruby/RubyEnumerable.java:830:in `map'
uri:classloader:/bundler/gems/diffy-de8b86845039/lib/diffy/html_formatter.rb:56:in `highlighted_words'
uri:classloader:/bundler/gems/diffy-de8b86845039/lib/diffy/html_formatter.rb:11:in `to_s'
uri:classloader:/bundler/gems/diffy-de8b86845039/lib/diffy/format.rb:34:in `html'
The fact that the constant seems present for the did you mean? leads me to believe some race condition.
I know that ActiveSupport likes to make heavy use of autoload which @headius has reported as unsafe via https://bugs.ruby-lang.org/issues/921
However I believe the codebase is mitigating this issue by explicitly requiring the file during our single-threaded startup phase.
# bunch of requires
require "active_support/core_ext/string/output_safety"
# start up the Puma serverInformation
Provide at least:
- jruby 9.1.17.0 (2.3.3) 2018-04-20 d8b1ff9 OpenJDK 64-Bit Server VM 25.232-b09 on 1.8.0_232-8u232-b09-1~deb9u1-b09 +jit [linux-x86_64]
- Linux fmzakari-glaptop 5.2.17-1rodete3-amd64 break script engine #1 SMP Debian 5.2.17-1rodete3 (2019-10-21 > 2018) x86_64 GNU/Linux
The bug is being experienced specifically when packaged up into a JAR with Warbler; however that's when we really push the concurrency through testing