[wildfly-dev] wildfly 8 client library now requires Java 7 ?

[Brian Stansberry]

Thanks, David.

Max, JIRA for getting rid of the JDK 6 requirement in the relevant 
modules built in WF itself is https://issues.jboss.org/browse/WFLY-2072.

On 9/13/13 11:28 AM, David M. Lloyd wrote:
> There are one or two API features that will give you an unsupported
> error on JDK 6; everything else is emulated (though XNIO does not use
> much NIO.2 stuff because mostly it's junk anyway).
>
> In particular I removed the 1.6 NIO UDP multicast emulation in 3.1
> because nobody was using it anyway.  Now it only works in 1.7+.
>
> Everything used by WildFly should work in 1.6.
>
> On 09/13/2013 10:55 AM, Tomaž Cerar wrote:
>> What about NIO2 stuff that xnio uses?
>>
>>
>> On Fri, Sep 13, 2013 at 5:48 PM, David M. Lloyd <david.lloyd at redhat.com
>> <mailto:david.lloyd at redhat.com>> wrote:
>>
>>      I've been building things with 1.7 and targeting them to 1.6 via
>>      seven2six.  So the following should all be 1.6 compatible (if they
>>      aren't then please let me know because it's a bug):
>>
>>      * org.jboss.marshalling:jboss-marshalling:jar:1.4.0.Final
>>      * org.jboss.remoting:jboss-remoting:jar:4.0.0.Beta1
>>      * org.jboss.sasl:jboss-sasl:jar:1.0.3.Final
>>      * org.jboss.xnio:xnio-api:jar:3.1.0.CR7
>>      * org.jboss.xnio:xnio-nio:jar:3.1.0.CR7
>>      * org.jboss:jboss-dmr:jar:1.2.0.Final
>>      * org.jboss.logging:jboss-logging:jar:3.1.3.GA <http://3.1.3.GA>
>>      * org.jboss.logging:jboss-logging-annotations:jar:1.2.0.Beta1
>>      * org.jboss.logging:jboss-logging-processor:jar:1.2.0.Beta1
>>      * org.jboss.jdeparser:jdeparser:jar:1.0.0.Final
>>      * org.jboss.threads:jboss-threads:jar:2.1.1.Final
>>
>>      In reality there is no actual benefit to the Java 7 class file format
>>      (other than simply preventing execution on 6 that is) so whenever
>>      possible I just transform my stuff to 1.6 (it's all otherwise
>>      compatible).
>>
>>      On 09/13/2013 05:46 AM, Kabir Khan wrote:
>>       > In the WildFly codebase it is only the protocol and
>>      controller-client modules needed for this, these are intentionally
>>      quite minimal so I personally don't see a problem with having them
>>      target 1.6.
>>       > The other dependencies are mostly David's so I'll let him comment
>>      on if they are usable in JDK 6 :-)
>>       >
>>       > [INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @
>>      wildfly-controller-client ---
>>       > [INFO] org.wildfly:wildfly-controller-client:jar:8.0.0.Beta1-SNAPSHOT
>>       > [INFO] +-
>>      org.wildfly:wildfly-protocol:jar:8.0.0.Beta1-SNAPSHOT:compile
>>       > [INFO] |  +-
>>      org.jboss.marshalling:jboss-marshalling:jar:1.4.0.Final:compile
>>       > [INFO] |  +-
>>      org.jboss.remoting:jboss-remoting:jar:4.0.0.Beta1:compile
>>       > [INFO] |  +- org.jboss.sasl:jboss-sasl:jar:1.0.3.Final:compile
>>       > [INFO] |  +- org.jboss.xnio:xnio-api:jar:3.1.0.CR7:compile
>>       > [INFO] |  \- org.jboss.xnio:xnio-nio:jar:3.1.0.CR7:compile
>>       > [INFO] +- org.jboss:jboss-dmr:jar:1.2.0.Final:compile
>>       > [INFO] +- org.jboss.logging:jboss-logging:jar:3.1.3.GA:compile
>>       > [INFO] +-
>>      org.jboss.logging:jboss-logging-annotations:jar:1.2.0.Beta1:provided
>>       > [INFO] +-
>>      org.jboss.logging:jboss-logging-processor:jar:1.2.0.Beta1:provided
>>       > [INFO] |  \- org.jboss.jdeparser:jdeparser:jar:1.0.0.Final:provided
>>       > [INFO] +- org.jboss.threads:jboss-threads:jar:2.1.1.Final:compile
>>       > [INFO] +- junit:junit:jar:4.11:test
>>       > [INFO] |  \- org.hamcrest:hamcrest-core:jar:1.3:test
>>       > [INFO] \-
>>      org.wildfly:wildfly-build-config:jar:8.0.0.Beta1-SNAPSHOT:compile
>>       >
>>       >
>>       > On 13 Sep 2013, at 11:07, Max Rydahl Andersen wrote:
>>       >
>>       >> I bumped into this error while trying out wildfly 8.
>>       >>
>>       >> An internal error occurred during: "Starting wildfly-8.0.0.Alpha4".
>>       >>
>>      org/jboss/as/controller/client/helpers/standalone/DeploymentPlanBuilder
>>      : Unsupported major.minor version 51.0
>>       >>
>>       >> Seems like the client library we use to control present and past
>>      servers now require Java 7.
>>       >>
>>       >> Is this expected ?
>>       >>
>>       >> We can go back using older libraries for JBoss AS 7/EAP 6 and
>>      would have to mark that you can't actually talk with
>>       >> Wildfly 8 libraries without Java 7 - but before doing that I
>>      wanted to check if this is expected or not?
>>       >>
>>       >> Thanks,
>>       >> /max
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>>       >
>>       >
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>>       >
>>
>>
>>      --
>>      - DML
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>>
>
>


-- 
Brian Stansberry
Principal Software Engineer
JBoss by Red Hat