There is an error in the current Murmur3 code introduced by sign extension errors. This is documented in CODEC-264.[1]
I have created a pull request to fix it.[2] While the code changes did not change any of the existing Murmur3 tests, I did add new tests that failed until the changes were applied. However, I am concerned that the commons-codec Murmur3 code is in the wild and this change will impact some hashes. Therefore, I am asking for a discussion concerning how to apply any patches like CODEC-264 to hashing algorithms that are in the wild. Thx, Claude [1] https://issues.apache.org/jira/browse/CODEC-264 [2] https://github.com/apache/commons-codec/pull/27
