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For the org.apache.hadoop.util.bloom.* classes:

/**
 *
 * Copyright (c) 2005, European Commission project OneLab under contract
 * 034819 (https://www.one-lab.org)
 * All rights reserved.
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For portions of the native implementation of slicing-by-8 CRC calculation
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/**
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 */

For src/main/native/src/org/apache/hadoop/io/compress/lz4/{lz4.h,lz4.c,
lz4_encoder.h,lz4hc.h,lz4hc.c,lz4hc_encoder.h},

/*
   LZ4 - Fast LZ compression algorithm
   Header File
   Copyright (C) 2011-2013, Yann Collet.
   BSD 2-Clause License (https://www.opensource.org/licenses/bsd-license.php)

   Redistribution and use in source and binary forms, with or without
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   met:

       * Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
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   copyright notice, this list of conditions and the following disclaimer
   in the documentation and/or other materials provided with the
   distribution.

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   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

   You can contact the author at :
   - LZ4 homepage : https://fastcompression.blogspot.com/p/lz4.html
   - LZ4 source repository : https://code.google.com/p/lz4/
*/