issue: https://bugs.openjdk.java.net/browse/JDK-8071466 webrev: http://cr.openjdk.java.net/~amironov/8071466.1/ DIO1.0.1: UART timeout feature is disabled by default the second fex. first was wrong because I assumed inputTimeout == 0 means feature disabled, but spec says Integer.MAX_VALUE marker for feature disabled.