[rules-dev] compilation failure on trunk

[Michael Neale]

yeah its a pain - even if we have to target 1.5 (which is entirely
reasonable for the next few releases) we can probably *require* that
it is built with JDK6, using whatever dirty tricks there are to make
the bytecode work with 1.5.

Apparently the EOL is for the Sun JVM, the IBM and other ones have a
longer life, it seems (and in many cases, the EOL of support on the
core JVM is ignored by users, more so then the app servers or
libraries or applications they run on top ! I have no idea why it is
that way, it just is. Probably like how some places still have Windows
2000 or NT around !).


On Wed, Oct 7, 2009 at 4:44 AM, Geoffrey De Smet
<ge0ffrey.spam at gmail.com> wrote:
>>     To compile trunk with Java 6, for now you have to use "-source 1.5".
>
> That doesn't work, as the maven compiler plugin is already set to use
> source 1.5 in the main pom and I can't compile with jdk 6. It can only
> be compiled with jdk 5 it seems, not jdk 6.
>
> With kind regards,
> Geoffrey De Smet
>
>
> Edson Tirelli schreef:
>>
>>     Geoffrey,
>>
>>     Java 6 API change was not source backward compatible with Java 5.
>> Drools 5.1m1 is supposed to compile only with Java 5.
>>
>>     We will probably move to Java 6 for the next milestone, since Java 5
>> is EOL this month anyway, but you need to rollback your change meanwhile.
>>
>>     To compile trunk with Java 6, for now you have to use "-source 1.5".
>>
>>     Edson
>>
>>
>> 2009/10/6 Geoffrey De Smet <ge0ffrey.spam at gmail.com
>> <mailto:ge0ffrey.spam at gmail.com>>
>>
>>     I've fixed it on trunk with this commit:
>>     "compilation error on jdk 6 (not on jdk 5) because the ExectutorService
>>     interface in java 6 follows the Joshua Bloch PECS pattern (so
>>     Collection<? extends Callable...> instead of just
>>     Collection<Callable...>)"
>>
>>     See
>>     http://fisheye.jboss.org/browse/JBossRules/trunk/drools-core/src/main/java/org/drools/concurrent/ExternalExecutorService.java?r1=29459&r2=29541
>>     <http://fisheye.jboss.org/browse/JBossRules/trunk/drools-core/src/main/java/org/drools/concurrent/ExternalExecutorService.java?r1=29459&r2=29541>
>>
>>     With kind regards,
>>     Geoffrey De Smet
>>
>>
>>     Geoffrey De Smet schreef:
>>      > When I try "mvn clean install -DskipTests", I get this (java version
>>      > "1.6.0_16"):
>>      >
>>      > [INFO]
>>      >
>>     ------------------------------------------------------------------------
>>      > [ERROR] BUILD FAILURE
>>      > [INFO]
>>      >
>>     ------------------------------------------------------------------------
>>      > [INFO] Compilation failure
>>      >
>>     /home/ge0ffrey/projects/jboss/drools/drools-core/src/main/java/org/drools/concurrent/ExternalExecutorService.java:[31,7]
>>      > org.drools.concurrent.ExternalExecutorService is not abstract and
>>     does
>>      > not override abstract method <T>invokeAny(java.util.Collection<?
>>     extends
>>      >
>>     java.util.concurrent.Callable<T>>,long,java.util.concurrent.TimeUnit) in
>>      > java.util.concurrent.ExecutorService
>>      >
>>      >
>>      >
>>      >
>>     /home/ge0ffrey/projects/jboss/drools/drools-core/src/main/java/org/drools/concurrent/ExternalExecutorService.java:[31,7]
>>      > org.drools.concurrent.ExternalExecutorService is not abstract and
>>     does
>>      > not override abstract method <T>invokeAny(java.util.Collection<?
>>     extends
>>      >
>>     java.util.concurrent.Callable<T>>,long,java.util.concurrent.TimeUnit) in
>>      > java.util.concurrent.ExecutorService
>>      >
>>      >
>>
>>     _______________________________________________
>>     rules-dev mailing list
>>     rules-dev at lists.jboss.org <mailto:rules-dev at lists.jboss.org>
>>     https://lists.jboss.org/mailman/listinfo/rules-dev
>>
>>
>>
>>
>> --
>>  Edson Tirelli
>>  JBoss Drools Core Development
>>  JBoss by Red Hat @ www.jboss.com <http://www.jboss.com>
>>
>>
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>>
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-- 
Michael D Neale
home: www.michaelneale.net
blog: michaelneale.blogspot.com