[news.eclipse.newcomer] Re: Compiling for older version of java

[Ed Merks <merks@xxxxxxxxxx>]

Joel,

I didn't think that Java 6.0 changed the class version levels again like 
Java 5.0 did.  Java 5.0 changed the language significantly so there is 
additional information about generics that needs to be encoded in the 
.class files, but I didn't think Java 6.0 had any such impact.  So my 
suspicion would be you are actually trying to run with a 1.4 JRE when 
you are getting the error you reported.  You could try setting your 
language level to 1.4 to confirm that...


joel wrote:
> Olivier Thomann wrote:
>
> > This means you didn't install a JRE 1.5, so the jre 1.6 is picked up 
> > instead of a 1.5 one.
> > I recommend that you add a JRE 1.5 in the Preferences>Java>Installed 
> > JREs
>
> Ok, so what you are saying is that setting the 'Execution Environment' 
> to J2SE-1.5(jre1.6.0_02) without actually having the JRE 1.5 installed 
> will not work as I expected to?  I was trying to avoid needlessly 
> installing another version of the JRE.
>
> --Joel