Mindustry/core/build.gradle

apply plugin: "java"
sourceCompatibility = 1.8
[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
sourceSets.main.java.srcDirs = ["src/"]

compileJava{
    options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"
}