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Fix for negative flakes #9

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Fix for negative flakes #9

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0a59638
Fix for negative flakes
May 15, 2015
c589f1c
Merge pull request #1 from azderski/negative-flakes
May 15, 2015
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11 changes: 9 additions & 2 deletions fauxflake-core/src/main/java/com/github/rholder/fauxflake/util/MacUtils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -92,8 +92,15 @@ public static byte[] realMacAddress() {
* Optionally setting the system property OVERRIDE_MAC_PROP to a valid MAC
* address will result in it being returned instead.
*/
public static byte[] macAddress() {
public static byte[] macAddress() {
byte[] override = getOverride();
return override != null ? override : realMacAddress();

if (override == null)
override = realMacAddress();

// lop off unicast/multicast lower bit to preserve top vendor bit & resolution. This
override[0] = (byte)((short)(override[0] & 0xff) >> 1);

return override;
}
}