private static boolean ignorePortCheck() {
        val ignorePortCheck = System.getenv(IGNORE_PORT_CHECK);
        return "true".equalsIgnoreCase(ignorePortCheck);
    }
The available port check doesn't always work on Windows so this provides a bypass mechanism.

@return true if IGNORE_PORT_CHECK environment variable equals true
core/cas-server-core-util-api/src/test/java/org/apereo/cas/util/junit/EnabledIfPortOpenCondition.java