[GitHub] [commons-codec] aherbert opened a new pull request #32: [codec-259] Hex: consume all ByteBuffer.remaining() bytes

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aherbert opened a new pull request #32: [codec-259] Hex: consume all ByteBuffer.remaining() bytes
URL: https://github.com/apache/commons-codec/pull/32
 
 
   The use of ByteBuffer.array() for any array-backed buffers means that the Hex class can produce incorrect results if the backing array is not entirely filled with the data to encode/decode.
   
   This fixes the implementation by only using the backing array if the length is equal to the reported capacity. Otherwise the methods using ByteBuffer default to copying the remaining bytes into a copy array.
   
   The code has been documented as using all remaining bytes in the input ByteBuffer. The methods now handle input array backed ByteBuffers and directly allocated ByteBuffers equally.
   
   Tests have been added using limits on the buffer to encode/decode a sub-section of the bytes.
   
   The tests have been updated so all tests are run with a direct allocated ByteBuffer in AllocateDirectHexTest.
   

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