src/main/java/org/valid4j/Assertive.java
public static Error neverGetHereError(Throwable t, String msg, Object... values) {
    getProvider().neverGetHerePolicy().neverGetHere(t, describing(msg, values));
    return DEFAULT_ERROR;
  }
public static Error neverGetHereError(Throwable t, String msg, Object... values) {
    getProvider().neverGetHerePolicy().neverGetHere(t, describing(msg, values));
    return DEFAULT_ERROR;
  }
Unexpected exception have been caught. This is considered
to be a programming error.

@param t      the throwable being unexpectedly caught.
@param msg    message {@link java.lang.String#format format string}
@param values values passed into the msg format string
@return an error