Unable to compile the package: `MojoFailureException`

[Dentrax]

After ran the rake command, I run into a compilation error:

...
[INFO] Compiling 38 source files to /work/jrjackson/pkg/classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:35 min
[INFO] Finished at: 2023-12-25T17:27:15+00:00
[INFO] Final Memory: 59M/141M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project jrjackson: Compilation failure -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
  jar dependencies for jrjackson-0.4.18-java.gemspec . . .
      com.fasterxml.jackson.core:jackson-core:2.15.2:compile
      com.fasterxml.jackson.core:jackson-annotations:2.15.2:compile
      com.fasterxml.jackson.core:jackson-databind:2.15.2:compile
      com.fasterxml.jackson.module:jackson-module-afterburner:2.15.2:compile

There are lots of Downloaded longs before this. But catch a Warning log:

Downloading: https://repo.maven.apache.org/maven2/rubygems/bundler/maven-metadata.xml
io/console on JRuby shells out to stty for most operations
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.jruby.ext.zlib.RubyZlib (file:/root/.m2/repository/org/jruby/jruby-core/9.1.17.0/jruby-core-9.1.17.0.jar) to field java.util.zip.CRC32.crc
WARNING: Please consider reporting this to the maintainers of org.jruby.ext.zlib.RubyZlib
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
set default encoding to UTF-8 for current runtime

I'm using jruby-9.4 with openjdk-11 on Alpine. How can I debug the error? Any thoughts?

[Dentrax]

After rake clean && rake compie, I hit this:

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building A JRuby wrapper for the java jackson json processor jar 1.2.35
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ jrjackson ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /work/jrjackson/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ jrjackson ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 38 source files to /work/jrjackson/pkg/classes
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.539 s
[INFO] Finished at: 2023-12-25T17:53:13+00:00
[INFO] Final Memory: 26M/63M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project jrjackson: Compilation failure -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
  jar dependencies for jrjackson-0.4.18-java.gemspec . . .
      com.fasterxml.jackson.core:jackson-core:2.15.2:compile
      com.fasterxml.jackson.core:jackson-annotations:2.15.2:compile
      com.fasterxml.jackson.core:jackson-databind:2.15.2:compile
      com.fasterxml.jackson.module:jackson-module-afterburner:2.15.2:compile

[Dentrax]

Have tried with java-8 as well and replaced the jruby version in .jrubyr_c file but no luck. cc @jsvd @kares

[jsvd]

I've done a few updates to the gem. compilation seems to be working correctly now:

❯ cat Dockerfile 
FROM jruby:9.4-jdk8
RUN apt-get update -q && apt-get install -q -y git vim
RUN git clone https://github.com/guyboertje/jrjackson/ 
WORKDIR /jrjackson
RUN bundle install && bundle exec rake
RUN bundle exec rake test benchmark
RUN bundle exec rake package

/tmp/docker ❯ docker build -q . -t jrjackson 
sha256:bb45c856b9e3312a7a9c73f65e33b93036840ef84f5cc581488cfde682ab3d11

/tmp/docker
❯ docker run -it jrjackson sh -c "ls -lha pkg/*gem"
-rw-r--r-- 1 root root 2.3M May  8 13:04 pkg/jrjackson-0.4.19-java.gem