[antlr-interest] Using Antlr v3 with JDK 1.4

[Steve Ebersole]

I ran into the same issue when first looking at Antlr3.  I was told the
intention was to not have the Antlr runtime rely on JDK 1.5; but
unfortunately some JDK 1.5 features ended up getting exposed.  

The outcome of my queries, iirc, was that it would just remain JDK 1.5
compatible.  You could probably use a retro-weaver though to make it 1.4
compatible.  Did not try...


On Mon, 2009-08-31 at 14:25 -0700, Gordon Tyler wrote:
> Is it possible to use the Antlr v3 runtime with JDK 1.4? I’m getting
> this error when compiling generated parser code using JDK 1.4, which
> indicates that the runtime is compiled with JDK 1.5:
> 
>  
> 
> NewTransformLexer.java:11: cannot access org.antlr.runtime.Lexer
> 
> bad class file: lib
> \antlr-runtime-3.1.3.jar(org/antlr/runtime/Lexer.class)
> 
> class file has wrong version 49.0, should be 48.0
> 
>  
> 
> Is it just a matter of a recompile of the runtime or does the runtime
> use Java 5 features?
> 
>  
> 
> Thanks,
> 
> Gordon
> 
>  
> 
> ---
> 
> Gordon Tyler (Software Developer)
> 
> Quest Software <http://www.quest.com/>
> 
> 260 King Street East, Toronto, Ontario M5A 4L5, Canada
> 
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> 
>  
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-- 
Steve Ebersole <steve at hibernate.org>
Hibernate.org