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From "Jiri Danek (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-6809) activemq-client return unexpected length code on first read from stream containing empty byte array
Date Fri, 15 Sep 2017 08:07:00 GMT
Jiri Danek created AMQ-6809:
-------------------------------

             Summary: activemq-client return unexpected length code on first read from stream
containing empty byte array
                 Key: AMQ-6809
                 URL: https://issues.apache.org/jira/browse/AMQ-6809
             Project: ActiveMQ
          Issue Type: Bug
          Components: JMS client
    Affects Versions: 5.14.5
            Reporter: Jiri Danek


Consider this code

{code}
	private void testEmptyBufferInput() throws JMSException {
		byte[] readList = new byte[BYTE_LIST.length - 1];
		byte[] emptyList = {};
		LOG.info("Streaming BYTE_LIST message testing EMPTY buffer input");
		stream.writeBytes(emptyList);
		stream.reset();
		LOG.info("Reading BYTE_LIST message testing EMPTY buffer input");
		final int IS_EMPTY = 0;
		assertThat(stream.readBytes(readList)).isEqualTo(IS_EMPTY);
	}
{code}

The code above works with qpid-jms, but fails with activemq-client on the {{assertThat}} with
error message {{java.lang.AssertionError: Not true that <-1> is equal to <0>}}.
Judging by documentation http://docs.oracle.com/javaee/6/api/javax/jms/BytesMessage.html#readBytes(byte[]),
I think that qpid-jms behavior is correct and what activemq-client does is a bug.



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