Is it possible to deploy an application compiled with java 6 on a machine 
running java 1.4?
I have both Java 6 and 4 on my machine.
I have a test application created using the Eclipse ant build while running 
java 6.
I force the app to use java 1.4 when deployed by modifying the MacOS class path 
file:

# JVM  == 
/System/Library/Frameworks/JavaVM.framework/Versions/1.4.2_22/Commands/java

When I run, I get this error:
java.lang.UnsupportedClassVersionError: com/webobjects/appserver/WOApplication 
(Unsupported major.minor version 49.0)

My java 6 version is:
java version "1.6.0_29"
Java(TM) SE Runtime Environment (build 1.6.0_29-b11-402-11E53)
Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02-402, mixed mode)

My java 4 version is:
java version "1.4.2_22"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_22-b02-329)
Java HotSpot(TM) Client VM (build 1.4.2-92, mixed mode)

I've tried modifying the build.xml "wocomplile" argument like this:
<wocompile srcdir="Sources" target="1.4" source="1.4" destdir="bin" fork="yes" 
memoryMaximumSize="256m" debug="yes">
but this does not seem to work.

I'm pretty sure this is possible, but cannot figure out how.




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