(LoadError) no such file to load -- asciidoctor-diagram (Use after fat Jar deployment)

[Ghuu420]

Ive been working on a Spring boot project lately that uses the asciidoctor and keep having this problem so hopefully someone is familiar with it and could say something about it ..

Its a basic projekt to creates different types of reports. Locally using a IDE (ECLIPSE) everything works fine but after the deployment , some problems start to happen. I am using java 17 and Apach Maven 3.9.1 locally .

The project is built into a fat executable Jar which is used for deployment (Linux Ubuntu (Java 17 too)) using these dependencies and build plugins

org.springframework.boot spring-boot-starter-web org.apache.poi poi-ooxml 3.17 org.asciidoctor asciidoctorj 3.0.0 compile org.asciidoctor asciidoctorj-pdf 2.3.18 compile org.asciidoctor asciidoctorj-diagram 2.3.1

I double checked after the successful build, that the asciidoctor-diagramm is unpacked and existant (at xxx1.0.0.jar\BOOT-INF\classes\gems\asciidoctor-diagram-2.3.1). After the deployment , calling an Api to generate a pdf report , I keep getting this error :

[org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/].[dispatcherServlet]] - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed: org.jruby.exceptions.LoadError: (MissingSpecError) Gem::MissingSpecError] with root cause : org.jruby.exceptions.LoadError: (LoadError) no such file to load -- asciidoctor-diagram at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1184) at RUBY.require(uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:85) at RUBY.

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