1.5 code base compiled with -target jsr14

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au714@osfn.org - 12 Apr 2006 14:53 GMT

I have a JDK 1.5 code base (a few hundred files) that is auto-generated
and uses 1.5 language features, mostly generics as far as I know. I
want to compile this and run on a 1.4.2 JVM.

I have done some reading here and am proceeding by

Compiling the code with a 1.5 javac with -target jsr14

I have run the generated class files on a 1.4.2 JVM with no initial
problems.

Does this seem like a reasonable approach? Are there any hidden
"gotchas" that might come up at runtime?

Note that I also must ensure that there are no 1.5 specific objects or
methods in my code base.

FGB

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Thomas Hawtin - 12 Apr 2006 15:17 GMT

> Compiling the code with a 1.5 javac with -target jsr14

> Does this seem like a reasonable approach? Are there any hidden
> "gotchas" that might come up at runtime?

Well, it isn't supported, may be full of bugs, might not match the
actual specs and may be removed at any time.

Tom Hawtin

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Unemployed English Java programmer
http://jroller.com/page/tackline/

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au714@osfn.org - 12 Apr 2006 17:30 GMT

Heh, are those the only issues you can think of :)

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VisionSet - 12 Apr 2006 16:22 GMT

> I have a JDK 1.5 code base (a few hundred files) that is auto-generated
> and uses 1.5 language features, mostly generics as far as I know. I
[quoted text clipped - 12 lines]
> Note that I also must ensure that there are no 1.5 specific objects or
> methods in my code base.

You could use Retroweaver

--
Mike W

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1.5 code base compiled with -target jsr14

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