Github user PuspenduBanerjee commented on the pull request:
https://github.com/apache/nifi/pull/202#issuecomment-179166551
@trkurc I think, if UUID format is of concern the following piece will run
more than 2 times faster compared to `UUID(0,long)`, could you please re-verify:
```java
private static String createFakeUUIDString(final AtomicLong atomicLong){
final String s=Long.toHexString(atomicLong.incrementAndGet());
return new StringBuffer("00000000-0000-0000-0000000000000000"
.substring(0,(35-s.length()))+s)
.insert(23, '-').toString();
}
```
I hope, everyone wins that way too along with more performance benefit.
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