in src/main/java/org/apache/geronimo/microprofile/impl/jwtauth/jwt/DateValidator.java [43:50]
private void init() {
expirationMandatory = Boolean.parseBoolean(config.read("exp.required", "true"));
issuedAtTimeMandatory = Boolean.parseBoolean(config.read("iat.required", "true"));
tolerance = Long.parseLong(config.read("date.tolerance",
Long.toString(ofNullable(config.read("org.eclipse.microprofile.authentication.JWT.clockSkew", null))
.map(Long::parseLong)
.orElse(60L))));
}