RFR: DIO-23: [I2C] UnavailableDeviceException when Zulu JRE is used

[Sergey Nazarkin]

Hi 

Please review small fix for the issue reproducible on non-Oracle JRE (Azul Zulu Embedded particularly). 

Issue:	https://bugs.openjdk.java.net/browse/DIO-23
Webrev: 	http://cr.openjdk.java.net/~snazarki/dio-23/

Sergey Nazarkin