gradle utf-8 test

build.gradle

@@ -11,8 +11,9 @@ repositories {
 }
 
 subprojects {
-
     apply plugin: 'java'
+    compileJava {options.encoding = "UTF-8"}
+    compileTestJava {options.encoding = "UTF-8"}
     sourceCompatibility = JavaVersion.VERSION_11
     repositories {
         mavenCentral()