MQTT 5 is an OASIS standard which debuted in March 2019. It boasts
numerous improvments over its predecessor (i.e. MQTT 3.1.1) which will
benefit users. These improvements are summarized in the specification
at:
https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#_Toc3901293
The specification describes all the behavior necessary for a client or
server to conform. The spec is highlighted with special "normative"
conformance statements which distill the descriptions into concise
terms. The specification provides a helpful summary of all these
statements. See:
https://docs.oasis-open.org/mqtt/mqtt/v5.0/os/mqtt-v5.0-os.html#_Toc3901292
This commit implements all of the mandatory elements from the
specification and provides tests which are identified using the
corresponding normative conformance statement. All normative
conformance statements either have an explicit test or are noted in
comments with an explanation of why an explicit test doesn't exist. See
org.apache.activemq.artemis.tests.integration.mqtt5 for all those
details.
This commit also includes documentation about how to configure
everything related to the new MQTT 5 features.
Updates parent pom, various plugins or deps, tidies up inconsistent versions
and consolidates to inherited version where possible, define properties for
some versions where not. Disables some problematic tests on JDK16+ for now.
Drops DS test dep back 1 version to remove a specific breakage affecting
multiple tests/modules, introduced after its upgrade in commit
9e70b26368.
- It is already entirely disabled one or more ways depending on what JVM is in use.
- If enabled on any modern JVM it would either fail by default or can never work, as
the related ciphers it requires have been disabled (8) or entirely removed (11+)
due to being considered unsuitable for use.
Fixes issues with SaslKrb5LDAPSecurityTest by updating to latest Apache Directory
release which required some updates to the test to fix deprecation warnings and an
updates to commons.lang to fix issues with new namespace for StringUtils that will
work on JDK 8+ only.
- Remove duplicates dependency definition following e7e3c71511.
- Removes deprecated RELEASE version use, consolidate modules on single paho client version.
- Remove prerequisites entry as per warning, suggested enforcer rule already in place.
Change summary:
- Remove the existing Xalan-based XPath evaluator since Xalan appears
to be no longer maintained.
- Implement a JAXP XPath evaluator (from the ActiveMQ 5.x code-base).
- Pull in the changes from https://issues.apache.org/jira/browse/AMQ-5333
to enable configurable XML parser features.
- Add a method to the base Message interface to make it easier to get
the message body as a string. This relieves the filter from having
to deal with message implementation details.
- Update the Qpid JMS client to get the jms.validateSelector parameter.
Robbie Gemmell
Justin Bertram
Clebert Suconic
Domenico Francesco Bruscino
Francesco Nigro
gtully
Timothy Bish