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
There's noting said about the JVM version limitations at http://doc.akkasource.org/getting-started
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"
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.
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.