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acknowledge use of hash-prospector code (#438)

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31
LICENSE
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@ -280,6 +280,37 @@ code from actors <https://github.com/plokhotnyuk/actors> which was released unde
--------------- ---------------
pekko-actor contains code in `org.apache.pekko.util.FrequencySketch.scala` which was based on
code from hash-prospector <https://github.com/skeeto/hash-prospector> which has been placed
in the public domain.
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>
---------------
pekko-cluster contains VectorClock.scala which is derived from code written pekko-cluster contains VectorClock.scala which is derived from code written
by Coda Hale <https://github.com/codahale/vlock>. by Coda Hale <https://github.com/codahale/vlock>.
He has agreed to allow us to use this code under an Apache 2.0 license He has agreed to allow us to use this code under an Apache 2.0 license

1
actor/src/main/scala/org/apache/pekko/util/FrequencySketch.scala
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@ -308,6 +308,7 @@ private[pekko] final class FastFrequencySketch[A](width: Int, resetSize: Int) {
// A low-bias hash function found by Hash Function Prospector // A low-bias hash function found by Hash Function Prospector
// https://github.com/skeeto/hash-prospector // https://github.com/skeeto/hash-prospector
// hash-prospector has been placed in public domain - https://github.com/skeeto/hash-prospector/blob/master/UNLICENSE
private def rehash(hash: Int): Int = { private def rehash(hash: Int): Int = {
var x = hash var x = hash
x = ((x >>> 15) ^ x) * 0xD168AAAD x = ((x >>> 15) ^ x) * 0xD168AAAD

31
legal/pekko-actor-jar-license.txt
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@ -277,3 +277,34 @@ be interpreted as representing official policies, either expressed or implied, o
pekko-actor contains code in `org.apache.pekko.dispatch.AbstractBoundedNodeQueue.java` which was based on pekko-actor contains code in `org.apache.pekko.dispatch.AbstractBoundedNodeQueue.java` which was based on
code from actors <https://github.com/plokhotnyuk/actors> which was released under the Apache 2.0 license. code from actors <https://github.com/plokhotnyuk/actors> which was released under the Apache 2.0 license.
---------------
pekko-actor contains code in `org.apache.pekko.util.FrequencySketch.scala` which was based on
code from hash-prospector <https://github.com/skeeto/hash-prospector> which has been placed
in the public domain.
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or
distribute this software, either in source code form or as a compiled
binary, for any purpose, commercial or non-commercial, and by any
means.
In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
software to the public domain. We make this dedication for the benefit
of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to <http://unlicense.org/>