Review

In line 70, a StringBuilder is created, but the instance is not used.

• missing/call

org/testng/mustache/Model.java

resolveValueToString(String)

class Model {
  public String resolveValueToString(String variable) {
    StringBuilder result = new StringBuilder();
    Value value = resolveValue(variable);
    if (value.get() != null) {
      return value.get().toString();
    } else {
      return "";
    }
  }

}