Is it possible to run AKKA on Java 1.5? I'm getting java.lang.UnsupportedClassVersionError: Bad version number in .class file for se.scalablesolutions.akka.actor.LocalActorRef. AKKA version is 0.9.1
There's noting said about the JVM version limitations at http://doc.akkasource.org/getting-started
views:
116answers:
3
+2
A:
As Scala itself should be backward compatible to Java 1.5, I guess you could pull the Akka sources and try to build it with Java 1.5 yourself. Of course it can happen that Akka relies on a Java class that didn't exist in Java 1.5.
Landei
2010-09-30 11:57:57
>> "As Scala itself should be backward compatible to Java 1.5" >> that's why I'm asking - I don't have such problems with Lift that works with 1.5 out-of-the box, but with AKKA it's gotta be trickier... :(
Dave
2010-09-30 12:00:28
There was a discussion long ago if Scala should drop the Java 1.4 support (as they did). Since then I never heard anything concerning going away from 1.5 - and frankly, there is not much in Java 1.6 and even 7 which would justify such a step.
Landei
2010-09-30 17:03:11
It's likely that Scala 2.9 could require Java 1.5.
retronym
2010-10-02 19:14:38
+2
A:
I have had the same problem with 0.10. I talked to Viktor Klang about it and i think he confirmed that Java 1.5 is not recommended. My advice is:
"Do not even try"
olle kullberg
2010-09-30 21:20:11
+2
A:
Hey Dave,
we are leveraging some of the 1.6 features to give Akka some of its awesomeness, however, if there's enough interest we can definitely consider backporting it to 1.5 as a blessed, for-pay, release bundle.
If you're interested just ping me.
Happy hAkking!
Viktor Klang
2010-10-02 18:38:23