How to combine two Jar files

Question

Is it possible to combine two jar files such that in an applet tag I can simply do something like

archive=\"jarjar.jar/jar1.jar\"...  ...archive=\"jarjar.jar         


        

Answer 1

If you are using gradle, just add the following to build.gradle. No plugins required. If you need special options, then go with Fatjar plugin, as initialZero suggests.

task superSimpleJar(type: Jar) {
    baseName = project.name + '-all'
    from { configurations.compile.collect { it.isDirectory() ? it :     zipTree(it) } }
    with jar
}

For Android project, add this to app/build.gradle and run "gradlew superSimpleJar". Find jar in build/libs/app-all.jar

task superSimpleJar(type: Jar) {
baseName = project.name + '-all'
from {

    configurations.compile.findAll {

    it.getName() != 'android.jar'

    }.collect {

    it.isDirectory() ? it : zipTree(it)

    }
 }
}

Answer 2

Just unzip both jar files, then zip the results into one zip file, and rename this to jar again.

But as adarshr said: Better use the jar command for that.