[antlr-interest] Using Antlr v3 with JDK 1.4

Terence Parr parrt at cs.usfca.edu
Mon Aug 31 17:14:54 PDT 2009


Hi. can we do 1.5 javac with -target jsr14?
Ter
On Aug 31, 2009, at 3:30 PM, Gordon Tyler wrote:

> Thanks Steve, and Jim Idle who replied off-list. I guess I'll have  
> to stick to Antlr v2 until my project drops the JDK 1.4 requirement.  
> Messing around with retro-weaver sounds dubious and I need to  
> restrict my third-party dependencies.
>
> -----Original Message-----
> From: Steve Ebersole [mailto:steven.ebersole at gmail.com] On Behalf Of  
> Steve Ebersole
> Sent: August 31, 2009 6:26 PM
> To: Gordon Tyler
> Cc: antlr-interest at antlr.org
> Subject: Re: [antlr-interest] Using Antlr v3 with JDK 1.4
>
> 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
>>
>> Voice: (416) 933-5046 | Fax: (416) 933-5001
>>
>>
>>
>>
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> -- 
> Steve Ebersole <steve at hibernate.org>
> Hibernate.org
>
>
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