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UnsupportedClassVersionError caused by 10.6 developed WOA being deployed on 10.5 server?
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UnsupportedClassVersionError caused by 10.6 developed WOA being deployed on 10.5 server?


  • Subject: UnsupportedClassVersionError caused by 10.6 developed WOA being deployed on 10.5 server?
  • From: Baiss Eric Magnusson <email@hidden>
  • Date: Tue, 8 Sep 2009 16:49:20 -0700

I assume the following error I get when I try to deploy on the 10.5 OSX Server is a JVM version problem.

From launch I get
java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:675)


From Java Preferences

On the OSX 10.6 development machine I see as the Default
Java SE 6 64-bit
Java SE 6 32-bit

On OSX 10.5 Intel Server I see as the Default

J2SE 5.0 32-bit
Java SE 6 64-bit
J2SE 5.0 64-bit
J2SE 1.4.2 32-bit

In Eclipse if I try to set the JRE to 5.0 I get
"The selected JRE does not support the current compiler compliance level of 1.6"


There is no Java SE 6 32-bit JVM for OSX Server 10.5

I'm stuck, which side can I bend?

----
Baiss Eric Magnusson
http://www.CascadeWebDesign.com



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