public static boolean sendCredentialsOverHttp() {
    return Boolean.getBoolean(SEND_CREDENTIALS_OVER_HTTP);
  }
Gets whether or not to allow sending authentication information over insecure HTTP connections.
This is defined by the {@code sendCredentialsOverHttp} system property.

@return {@code true} if authentication information is allowed to be sent over insecure
    connections, {@code false} if not
jib-core/src/main/java/com/google/cloud/tools/jib/global/JibSystemProperties.java