apply from: "$rootDir/gradle/instrumentation.gradle" muzzle { pass { group = "io.netty" module = "netty-codec-http" versions = "[4.0.0.Final,4.1.0.Final)" assertInverse = true } pass { group = "io.netty" module = "netty-all" versions = "[4.0.0.Final,4.1.0.Final)" assertInverse = true } fail { group = "io.netty" module = "netty" versions = "[,]" } pass { group = "io.vertx" module = "vertx-core" versions = "[2.0.0,3.3.0)" assertInverse = true } } dependencies { library group: 'io.netty', name: 'netty-codec-http', version: '4.0.0.Final' latestDepTestLibrary group: 'io.netty', name: 'netty-codec-http', version: '4.0.56.Final' } // We need to force the dependency to the earliest supported version because other libraries declare newer versions. configurations.testImplementation { resolutionStrategy { eachDependency { DependencyResolveDetails details -> //specifying a fixed version for all libraries with io.netty' group if (details.requested.group == 'io.netty') { details.useVersion "4.0.0.Final" } } } }