message: java core: Mark test files as encoded.
  Some environments, such as CI containers, may not set a default encoding
  of
diff: @@ -28,6 +28,10 @@ dependencies {
  testCompile 'junit:junit:4.12'
  }
  +compileTestJava {
  + options.encoding = 'UTF-8'
  +}
  +
  compileBond {
  bondfiles '../../idl/bond/core/bond.bond',
  '../../idl/bond/core/bond_const.bond'
  