avoid call NetworkInterface.getByInetAddress in getHardwareAddress #214
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getHardwareAddress will be called frequently. And in Android platform, it will call getNetworkInterfacesList, and small array objects are created which will casue GC.
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getHardwareAddress will be called frequently.
And in Android platform, it will call getNetworkInterfacesList,
and small array objects are created which will casue GC.