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The Java Packager tool is a tool included in the JDK which allows to package Java applications from the command line. It is an alternative to using other packaging tools like Apache Ant.[1]

Note that the Java Packager does not automatically produce a Jar file. Many other formats are available, including native executable formats for the platform.

The Java Packager tool also manipulates modules (added in Java 9), allowing for example to package a module and all the modules it depends on.[2]

Example

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For example, the following command will create a outputJar.jar file with the content of the classesDir directory, and will set the myPackager.MainClass as the executable class of the jar file: 

javapackager -createjar -appclass myPackager.MainClass -srcdir classesDir -outdir out -outfile outputJar -v

References

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  1. ^ "The Java Packager Tool". Oracle Corporation. Retrieved 2017-07-31.
  2. ^ "JEP 275: Modular Java Application Packaging". Oracle Corporation. Retrieved 2017-07-31.
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