[jira] [Resolved] (AMQ-6809) activemq-client returns unexpected length code on first read from stream containing empty byte array

["Timothy Bish (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMQ-6809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timothy Bish resolved AMQ-6809.
-------------------------------
       Resolution: Fixed
         Assignee: Timothy Bish
    Fix Version/s: 5.16.0
                   5.15.1

> activemq-client returns 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 Daněk
>            Assignee: Timothy Bish
>            Priority: Minor
>             Fix For: 5.15.1, 5.16.0
>
>
> 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/StreamMessage.html#readBytes(byte[]), I think that qpid-jms behavior is correct and what activemq-client does is a bug.



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