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https://issues.apache.org/jira/browse/CODEC-259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16884418#comment-16884418
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Tomas Shestakov commented on CODEC-259:
---------------------------------------
I made the pool request to fix it
https://github.com/apache/commons-codec/pull/23
> Broken java.nio.ByteBuffer support in org.apache.commons.codec.binary.Hex
> -------------------------------------------------------------------------
>
> Key: CODEC-259
> URL: https://issues.apache.org/jira/browse/CODEC-259
> Project: Commons Codec
> Issue Type: Bug
> Affects Versions: 1.11, 1.12
> Reporter: Tomas Shestakov
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> java.nio.ByteBuffer support in org.apache.commons.codec.binary.Hex does not
> work properly for direct ByteBuffer created by ByteBuffer.allocateDirectÂ
> method and for heap ByteBuffers which arrayOffset() or byteBuffer.position()
> greater than zero:
> This test will produce java.lang.UnsupportedOperationException
> {code:java}
> @Test
> public void testEncodeHexByteBufferEmpty() {
> assertTrue(Arrays.equals(new char[0],
> Hex.encodeHex(ByteBuffer.allocateDirect(0))));
> }
> {code}
> This one will fail
> {code:java}
> @Test
> public void testEncodeHexByteBufferHelloWorldLowerCaseHex() {
> final ByteBuffer b = ByteBuffer.wrap(StringUtils.getBytesUtf8("[Hello
> World]"), 1, 11);
> final String expected = "48656c6c6f20576f726c64";
> char[] actual;
> actual = Hex.encodeHex(b);
> assertEquals(expected, new String(actual));
> actual = Hex.encodeHex(b, true);
> assertEquals(expected, new String(actual));
> actual = Hex.encodeHex(b, false);
> assertFalse(expected.equals(new String(actual)));
> }
> {code}
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