build.gradle

apply plugin: 'java'
apply plugin: 'eclipse-wtp'
apply plugin: 'war'

sourceCompatibility = 1.8
targetCompatibility = 1.8

webAppDirName = 'web'

dependencies {

    compileOnly group: 'javax.servlet', name: 'javax.servlet-api', version: '3.1.0'

    compile group: 'javax.ws.rs', name: 'javax.ws.rs-api', version: '2.0'

    compile group: 'org.glassfish.jersey.containers', name: 'jersey-container-servlet-core', version: '2.25.1'
    compile group: 'org.glassfish.jersey.containers', name: 'jersey-container-servlet', version: '2.25.1'
    compile group: 'org.glassfish.jersey.core', name: 'jersey-server', version: '2.25.1'
    compile group: 'org.glassfish.jersey.media', name: 'jersey-media-json-jackson', version: '2.25.1'
    compile group: 'org.glassfish.jersey.ext', name: 'jersey-bean-validation', version: '2.25.1'

    compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.8.2'
    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.8.2'
}

repositories { mavenCentral() }

eclipse.project { natures 'org.eclipse.buildship.core.gradleprojectnature', 'org.eclipse.jdt.core.javanature' }

task copyJars(type: Copy) {
    from configurations.compile
    into ("web/WEB-INF/lib")
    include('*.jar')
}

task deleteJars(type: Delete) {
    delete fileTree("/web/WEB-INF/lib") { include '*.jar' }
}

eclipseClasspath.dependsOn copyJars

build.dependsOn deleteJars
build.dependsOn copyJars

assemble.dependsOn deleteJars
assemble.dependsOn copyJars

clean.dependsOn deleteJars