Trailing dot in validation error message.

[SawantKunal]

I'm using quarkus-resteasy-problem with custom validations. When I'm not using addPropertyNode method, I noticed that when validation fails, the constraint violation path includes an unnecessary trailing dot.

Custom validation code -

@Override
  public boolean isValid(Code code, ConstraintValidatorContext constraintValidatorContext) {
    boolean isValid = true;
    constraintValidatorContext.disableDefaultConstraintViolation();

    if (pattern != null && !pattern.matcher(code.code()).matches()) {
      constraintValidatorContext.buildConstraintViolationWithTemplate("must match \"" + pattern.pattern() + "\"")
          .addConstraintViolation();
      isValid = false;
    }
    return isValid;
  }

Example validation error message -

"violations": [
    {
      "field": "ifsc.",
      "in": "body",
      "message": "must match regex"
    }
]

This seems to be caused by empty path segments being included during path serialization. I’ve fixed the issue by adding a null/empty check when serializing the Path, and I’m raising a PR to propose the change. Would appreciate feedback!