Re: [abc-dev] Fwd:

Wow, that was quick!

Unfortunately, I've now hit a very similar involving methods with
annotations (replace the variable 'i' in my example with a method definition
to reproduce). I know you guys are busy, so please don't rush to fix it for
my benefit if you have other things to do - just let me know if/when you
have time to fix it, and I'll see how much further I can get.

Exception in thread "main" polyglot.util.InternalCompilerError: unhandled
exception during
 compilation
        at abc.main.CompileSequence.runSequence(CompileSequence.java:110)
        at abc.main.Main.run(Main.java:406)
        at abc.main.Main.main(Main.java:144)
Caused by: java.lang.NullPointerException
        at abc.ja.jrag.MethodDecl.addAttributes(MethodDecl.java:397)
        at abc.ja.jrag.MethodDecl.jimplify1phase2(MethodDecl.java:353)
        at abc.ja.jrag.TypeDecl.jimplify1phase2(TypeDecl.java:1061)
        at abc.ja.jrag.ClassDecl.jimplify1phase2(ClassDecl.java:430)
        at abc.ja.jrag.ASTNode.jimplify1phase2(ASTNode.java:601)
        at abc.ja.jrag.ASTNode.jimplify1phase2(ASTNode.java:601)
        at abc.ja.jrag.Program.jimplify1(Program.java:898)
        at abc.ja.CompileSequence.compile(CompileSequence.java:118)
        at abc.main.CompileSequence.runSequence(CompileSequence.java:100)
        ... 2 more

Chris

On Thu, Sep 11, 2008 at 3:18 PM, Pavel Avgustinov <pavel_at_comlab.ox.ac.uk>wrote:

> Hi all,
>
> On Thursday 11 September 2008 14:52:01 Eric Bodden wrote:
> > Hi all.
> >
> > 2008/9/11 Chris Allan <mrchrisallan_at_googlemail.com>:
> > > I had a very quick look at what was going on, and it seems that when
> > > processing the .class files, the field
> > > abc.ja.jrag.FieldDeclaration.sootField never gets set, because the
> > > conditional at FieldDeclaration line 329 [
> > > if(!hostType().getSootClassDecl().declaresFieldByName(name)) ] returns
> > > false when looking for the field 'i' - when compiling from source, this
> > > expression evaluates to true. I don't know what the significance of
> this
> > > is though, so I gave up investigating! Please let me know if I can
> > > provide any more information.
>
> Thanks for this, Chris. It was very helpful in helping us track down the
> bug!
> I and Torbjorn have fixed it in current svn head. Please let us know if you
> run into any more trouble!
>
> > To my understanding the error occurs somewhat earlier in the
> > compilation process. If I am not mistaken then JastAdd should not even
> > touch these files at all because they are read in from bytecode and
> > JastAdd is only meant to handle .java files.
>
> Unfortunately, that is a little inaccurate, since ITD weaving happens in
> the
> JastAdd part of the compiler. As such, JastAdd potentially needs to modify
> any weavable class file, and so all weavable bytecode is loaded and
> jimplified by JastAdd. I'm sorry I didn't correct this misconception when
> you
> mentioned it in response to one of Chris's earlier emails -- it probably
> would have saved you some confusion!
>
> Best wishes,
> - Pavel
>
>
Received on Thu Sep 11 2008 - 16:20:54 BST