build.gradle

apply plugin: 'java'
apply plugin: 'kotlin'

sourceCompatibility = 1.8
targetCompatibility = 1.8

buildscript {

    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.21"
    }
}

repositories {
    mavenCentral()
}

sourceSets {
    main {
        kotlin {
            srcDir 'src'
        }
        java {
            srcDir 'src'
        }
    }
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib:1.3.21"
    implementation "net.portswigger.burp.extender:burp-extender-api:1.7.22"
}

task fatJar(type: Jar) {
    manifest {
        attributes('Class-Path': configurations.compile.collect { it.getName() }.join(' '),
                'Main-Class': 'burp.RemoveBearerTokenKt'
        )
    }
    // configurations.compile.collect
    from { configurations.compileClasspath.collect { it.isDirectory() ? it : zipTree(it) } }
    with jar
}