Error happens when using with warble gem

[qisantanu]

I am using it ina jruby rails application. I have added to the Gemfile, bundle install is a success.
$ bundle install | grep fast
Using fast_excel 0.4.0

After creating the war file by using the warbler gem,
when I want to run the war file it is not able to find the gem and saying to install the missing gem.

$ java -jar rtti_web.war
2021-10-06 13:14:26.699:INFO::main: Logging initialized @189ms
2021-10-06 13:14:26.707:INFO:oejr.Runner:main: Runner
2021-10-06 13:14:26.851:INFO:oejs.Server:main: jetty-9.2.9.v20150224
2021-10-06 13:14:32.941:WARN:oeja.AnnotationConfiguration:main: ServletContainerInitializers: detected. Class hierarchy: empty
2021-10-06 13:14:33.198:INFO:/:main: INFO: jruby 9.3.0.0 (2.6.8) 2021-09-17 85c20e780f OpenJDK 64-Bit Server VM 11.0.11+9-Ubuntu-0ubuntu2.20.04 on 11.0.11+9-Ubuntu-0ubuntu2.20.04 +jit [linux-x86_64]
2021-10-06 13:14:33.199:INFO:/:main: INFO: using a shared (threadsafe!) runtime
uri:classloader:/jruby/rack/response.rb:294: warning: constant ::Fixnum is deprecated
uri:classloader:/jruby/rack/core_ext.rb:26: warning: constant ::NativeException is deprecated
Could not find fast_excel-0.4.0 in any of the sources
Run bundle install to install missing gems.
2021-10-06 13:14:36.766:INFO:/:main: An exception happened during JRuby-Rack startup|exit|--- System|jruby 9.3.0.0 (2.6.8) 2021-09-17 85c20e780f OpenJDK 64-Bit Server VM 11.0.11+9-Ubuntu-0ubuntu2.20.04 on 11.0.11+9-Ubuntu-0ubuntu2.20.04 +jit [linux-x86_64]|Time: 2021-10-06 13:14:36 +0530|Server: jetty/9.2.9.v20150224|jruby.home: uri:classloader://META-INF/jruby.home||--- Context Init Parameters:|jruby.max.runtimes = 1|jruby.min.runtimes = 1|public.root = /rtti_web|rails.env = development||--- Backtrace|SystemExit: exit| exit at org/jruby/RubyKernel.java:790| exit at org/jruby/RubyKernel.java:753|

at /tmp/jetty-0.0.0.0-8080-rtti_web.war--any-145514313392485866.dir/webapp/WEB-INF/gems/gems/bundler-2.2.28/lib/bundler/setup.rb:17| require at org/jruby/RubyKernel.java:1017| require at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:85| at /tmp/jetty-0.0.0.0-8080-rtti_web.war--any-145514313392485866.dir/webapp/WEB-INF/config/boot.class:3| load at org/jruby/RubyKernel.java:1052| at /tmp/jetty-0.0.0.0-8080-rtti_web.war--any-145514313392485866.dir/webapp/WEB-INF/config/boot.rb:1| require at org/jruby/RubyKernel.java:1017| require at uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:85| load_environment at uri:classloader:/jruby/rack/rails/environment3.rb:23| load_environment at uri:classloader:/jruby/rack/rails_booter.rb:83| at <script>:1||--- RubyGems|Gem.dir: /tmp/jetty-0.0.0.0-8080-rtti_web.war--any-145514313392485866.dir/webapp/WEB-INF/gems|Gem.path:|/home/in-lt-89/.gem/jruby/2.6.0|uri:classloader:/META-INF/jruby.home/lib/ruby/gems/shared|/tmp/jetty-0.0.0.0-8080-rtti_web.war--any-145514313392485866.dir/webapp/WEB-INF/gems|Activated gems:| jar-dependencies-0.4.1| did_you_mean-1.3.0| bundler-2.2.28||--- Bundler|Bundler.bundle_path: /tmp/jetty-0.0.0.0-8080-rtti_web.war--any-145514313392485866.dir/webapp/WEB-INF/gems|Bundler.root: /tmp/jetty-0.0.0.0-8080-rtti_web.war--any-145514313392485866.dir/webapp/WEB-INF|Gemfile: /tmp/jetty-0.0.0.0-8080-rtti_web.war--any-145514313392485866.dir/webapp/WEB-INF/Gemfile|Settings:| gemfile = /tmp/jetty-0.0.0.0-8080-rtti_web.war--any-145514313392485866.dir/webapp/WEB-INF/Gemfile| quantuminventions.jfrog.io = santanu.bhattacharya:1Jamphibia_anura1| without = [:development, :test, :assets]||--- JRuby-Rack Config|compat_version = |default_logger = org.jruby.rack.logging.StandardOutLogger@225ddf5f|equals = <error: >|err = java.io.PrintStream@74badf19|filter_adds_html = true|filter_verifies_resource = false|ignore_environment = false|initial_memory_buffer_size = |initial_runtimes = 1|jms_connection_factory = |jms_jndi_properties = |logger = org.jruby.rack.logging.ServletContextLogger@59b3f754|logger_class_name = servlet_context|logger_name = jruby.rack|maximum_memory_buffer_size = |maximum_runtimes = 1|num_initializer_threads = |out = java.io.PrintStream@8315e4a|rackup = |rackup_path = |rewindable = true|runtime_arguments = |runtime_environment = |runtime_timeout_seconds = |serial_initialization = false|servlet_context = ServletContext@o.e.j.w.WebAppContext@63753b6d{/,file:/tmp/jetty-0.0.0.0-8080-rtti_web.war--any-145514313392485866.dir/webapp/,STARTING}{file:/home/in-lt-89/dev/rtti-web/web/rtti_web.war}|throw_init_exception = false|
2021-10-06 13:14:36.767:WARN:/:main: ERROR: initialization failed

[toao]

Issue is still happening with fast_excel 0.4.1

We're using jruby 9.4.2.0, tomcat 8.5.85-jdk8 and warbler 2.0.5 (441a99ad1dbc9cac7df2c2beca6a91f21ced60fa)