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Last active January 13, 2024 10:09
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🚧 [Java] Uber Jar, Fat Jar, Shade, Jars in Jar
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uber_jar.md

Uber Jar, Fat Jar, Shade, Jars in Jar

☘ extracted dependencies in jar

maven

merge properties

  • maven-assembly-plugin

in assmbly.xml

<containerDescriptorHandlers>
    <containerDescriptorHandler>
      <handlerName>metaInf-services</handlerName>
    </containerDescriptorHandler>
  </containerDescriptorHandlers>
  • maven-shade-plugin

in pom.xml

 <configuration>
  <transformers>
    <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
  </transformers>

gradle

shadow has limit 65535 for extracted files, this is too few. -> specs

☘ jars in jar

we need special class loader for jars in jar

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