jruby-jars gem build fails in snapshot builds #9725

[WARNING] OpenJDK 64-Bit Server VM warning: Ignoring option --illegal-access=warn; support was removed in 17.0
WARNING:  See https://guides.rubygems.org/specification-reference/ for help
ERROR:  While executing gem ... (Gem::InvalidSpecificationException)
    ["lib/jruby-core-10.1.2.0-complete.jar", "lib/jruby-stdlib-10.1.2.0.jar"] are not files
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/specification_policy.rb:522:in 'error'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/specification_policy.rb:290:in 'validate_non_files'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/specification_policy.rb:77:in 'validate_required!'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/specification_policy.rb:47:in 'validate'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/specification.rb:2532:in 'validate'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/package.rb:298:in 'build'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/package.rb:137:in 'build'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/commands/build_command.rb:87:in 'build_package'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/commands/build_command.rb:77:in 'build_gem'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/commands/build_command.rb:68:in 'execute'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/command.rb:326:in 'invoke_with_build_args'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/command_manager.rb:252:in 'invoke_command'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/command_manager.rb:193:in 'process_args'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/command_manager.rb:151:in 'run'
	uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/gem_runner.rb:56:in 'run'
	/Users/headius/work/jruby/maven/jruby-complete/target/jruby-complete-10.1.3.0-SNAPSHOT.jar!/META-INF/jruby.home/bin/jgem:21:in '<main>'
	org/jruby/RubyKernel.java:1403:in 'load'
	/Users/headius/work/jruby/maven/jruby-complete/target/jruby-complete-10.1.3.0-SNAPSHOT.jar!/META-INF/jruby.home/bin/gem:4:in '<main>'
	org/jruby/RubyKernel.java:1403:in 'load'
	-e:1:in '<main>'

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for JRuby 10.1.3.0-SNAPSHOT:
[INFO] 
[INFO] JRuby .............................................. SUCCESS [  0.356 s]
[INFO] JRuby Base ......................................... SUCCESS [ 13.901 s]
[INFO] JRuby Core ......................................... SUCCESS [  3.667 s]
[INFO] JRuby Lib Setup .................................... SUCCESS [  3.388 s]
[INFO] JRuby Artifacts .................................... SUCCESS [  0.006 s]
[INFO] JRuby Main Maven Artifact .......................... SUCCESS [  0.670 s]
[INFO] JRuby Complete ..................................... SUCCESS [ 13.060 s]
[INFO] JRuby Dist ......................................... SUCCESS [02:31 min]
[INFO] JRuby Jars Gem ..................................... FAILURE [  2.461 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  03:11 min
[INFO] Finished at: 2026-09-21T18:02:33-05:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.jruby.maven:gem-maven-plugin:3.0.6:package (default-package) on project jruby-jars: Execution default-package of goal org.jruby.maven:gem-maven-plugin:3.0.6:package failed: Java returned: 1 -> [Help 1]