On 5/25/07, David D. Lucas <[EMAIL PROTECTED]> wrote:
First off, thanks to everyone who put together a great open source package
like ActiveMQ. I am very impressed with it. Great Job!!!
I am trying to deploy ActiveMQ 4.2 to WebSphere 5.1. I was able to do
this with ActiveMQ 4.1, but with 4.2 I am seeing the "Unsupported
major.minor version 49.0" error. I assume that the ActiveMQ classes or
something it is dependent on is compiled with JRE 1.5 byte code instead of
JRE 1.4. My assumption, of course, is that 4.2 will continue to support
JRE 1.4 backward compatibility. If this is not correct, can someone
document that or point me to the correct location?
4.2 or later is built with Java 5 by default; since on Java 5 the new
concurrency code is faster & less buggy.
We may get around to creating a separate distro of retrotranslated
jars for 1.4. (Patches most welcome!:)
http://activemq.apache.org/contributing.html
Until then you can just install the retrotranslator JIT in your JVM to
auto-swizzle any Java 5 jars.
http://retrotranslator.sourceforge.net/#jit
While I am on the topic with WebSphere, is there a way to use the embedded
broker on multiple web containers all pointing to the same JDBC
persistence store?
Just deploy one :)
The issue is from web apps they usually can't see the same broker via
VM transport. So either use TCP, or put the ActiveMQ jars in the
system class path.
--
James
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http://macstrac.blogspot.com/
