[Soot-list] NullPointerException with -ast-metrics?

[Eric Bodden]

Hi Maja.

Can you please try the same in combination with the -polyglot option?
I suspect that computing the AST metrics is actually done within
polyglot but polyglot is not used any more by default. Please confirm
whether that works and if it does then I will see that I can have Soot
give a more appropriate error message in this case.

Eric

2009/3/22 Maja Frydrychowicz <mfrydr at cs.mcgill.ca>:
> Hey, I generally don't have any trouble running soot, but am I doing
> something wrong here?
>
> $ ls
> Game.java  SearchGame.java  sootOutput  TransGame.java
>
> $ java soot.Main -O -cp . -pp -ast-metrics -app SearchGame
> Soot started on Sun Mar 22 18:02:28 EDT 2009
> Error reading in dictionary file(s)
> Exception in thread "main" java.lang.NullPointerException
>        at soot.toolkits.astmetrics.ASTMetric.execute(ASTMetric.java:82)
>        at soot.toolkits.astmetrics.ComputeASTMetrics.apply(ComputeASTMetrics.java:58)
>        at soot.JavaClassSource.resolve(JavaClassSource.java:66)
>        at soot.SootResolver.bringToHierarchy(SootResolver.java:184)
>        at soot.SootResolver.bringToSignatures(SootResolver.java:209)
>        at soot.SootResolver.processResolveWorklist(SootResolver.java:139)
>        at soot.SootResolver.resolveClass(SootResolver.java:124)
>        at soot.Scene.loadClass(Scene.java:390)
>        at soot.Scene.loadClassAndSupport(Scene.java:375)
>        at soot.Scene.loadNecessaryClass(Scene.java:929)
>        at soot.Scene.loadNecessaryClasses(Scene.java:943)
>        at soot.Main.run(Main.java:169)
>        at soot.Main.main(Main.java:145)
>
> I've tried using -ast-metrics on its own and in many combinations with
> other soot options and the result is always the same; I've found
> minimal documentation about it.
>
> Thanks,
> Maja
> _______________________________________________
> Soot-list mailing list
> Soot-list at sable.mcgill.ca
> http://mailman.cs.mcgill.ca/mailman/listinfo/soot-list
>



-- 
Eric Bodden
Sable Research Group, McGill University
Montréal, Québec, Canada