public String toString() {
    return " Value1 [ Name : " + name + " lastName : " + lastName
        + " department : " + department + " age : " + age
        + " employeeId : " + employeeId + " ]";
  }
Sample class for Data DUnit tests with JSON keys and values
geode-junit/src/main/java/org/apache/geode/management/internal/cli/dto/Value1.java