@Override
  public String toString() {
    final String className = this.backingType.getName();
    final String message = this.getMessage();
    return message == null ? className : className + ":" + message;
  }
A wrapper for exceptions that implement ComponentMessageThrowable.
text-logger-slf4j/src/main/java/net/kyori/adventure/text/logger/slf4j/UnpackedComponentThrowable.java