Tomas Shestakov created CODEC-259:
-------------------------------------
Summary: 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: 1.12, 1.11
Reporter: Tomas Shestakov
java.nio.ByteBuffer support in org.apache.commons.codec.binary.Hex does not
work properly for direct ByteBuffer created by ByteBuffer.allocateDirect 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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