build.gradle

plugins {
    id 'java'
}

configurations {
    jaxb
}

group 'org.personal'
version '1.0-SNAPSHOT'

repositories {
    mavenCentral()
}

dependencies {
    //JAXB
    jaxb (
            'com.sun.xml.bind:jaxb-xjc:4.0.2',
            'com.sun.xml.bind:jaxb-impl:4.0.2',
            'org.glassfish.jaxb:jaxb-runtime:4.0.2'
    )

    implementation 'javax.xml.bind:jaxb-api:2.3.1'
    implementation 'com.sun.xml.bind:jaxb-core:4.0.3'

    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.9.2'
    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.9.2'
}

test {
    useJUnitPlatform()
}

task jaxb {
    System.setProperty('javax.xml.accessExternalSchema', 'all')
    def jaxbTargetDir = file("src/main/java/")
    doLast {
        jaxbTargetDir.mkdirs()
        ant.taskdef(
                name: 'xjc',
                classname: 'com.sun.tools.xjc.XJCTask',
                classpath: configurations.jaxb.asPath
        )
        ant.jaxbTargetDir = jaxbTargetDir
        ant.xjc(
                destdir: '${jaxbTargetDir}',
                package: 'org.personal.jaxb',
                schema: 'src/main/resources/contracts.xsd'
        )
    }
}

compileJava.dependsOn jaxb