Re: Java 5 woes

I had this very problem this morning, and found the following shell 
script on some website and ran it with:

sh ./setJDK.sh 1.4.2



~steve


#!/bin/sh

cd /System/Library/Frameworks/JavaVM.framework/Versions

CURJDK="`readlink CurrentJDK`"
echo Current JDK version: $CURJDK

if [ "$1" == "" ]; then
echo Installed versions:
ls
exit
fi

VERFOUND=`ls | grep $1 | head -n 1`

if [ "$VERFOUND" != "$1" ]; then
BASE="`basename $0`"
echo Error: Could not change JDK-- version $1 not installed!
echo Run $BASE without arguments to see a list of installed versions.
exit 127
fi

echo You must now enter your Mac OS X password to change the JDK.
sudo ln -fhsv $1 CurrentJDK


Zach A. Thomas wrote:
> I went ahead and ran the OS X update to get Java 5 as the default. I 
> was worried that it would cause problems (our production servers still 
> run JVM 1.4.2) and it has.
>
> I updated my build.properties with maven.compile.source=1.4 and 
> maven.compile.target=1.4, I set JAVA_HOME so it points to my older 
> Java installation, and I even replaced the sym link for /usr/bin/javac.
>
> When I do a build on my machine it runs fine, but when I copy it up to 
> one of our app servers, I get a wide variety of "Unsupported 
> major.minor version 49.0" errors on a lot of classes, particularly 
> every time a tool tries to load in an iframe.
>
> What have I overlooked? Is there a way to verify after the fact that 
> my object files were indeed produced by the 1.4.2 compiler?
>
> regards,
> Zach A. Thomas
> Software Engineer
> Texas State University
> http://www.txstate.edu
>
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