[Soot-list] Class Hierarchy Analysis causes NullPointerException

[Daniel Popescu]

Thanks Eric for helping out.

Here is the requested information:

These are the command line options that I have extracted from the
Eclipse console:
soot.Main --w --omit-excepting-unit-edges --p cg verbose:true
--main-class c2.apps.dradel.DradelTest --p cg.cha verbose:true --d
[MyWorkspaceDirectory]/c2.fw/sootOutput --cp
[MyWorkspaceDirectory]/c2.fw/bin:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/jce.jar:/System/Library/Java/Extensions/dns_sd.jar:/c2.fw/src:/System/Library/Java/Extensions/AppleScriptEngine.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext/sunjce_provider.jar:/System/Library/Java/Extensions/jai_codec.jar:/System/Library/Java/Extensions/mlibwrapper_jai.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext/sunpkcs11.jar:/System/Library/Java/Extensions/j3dcore.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/laf.jar:/System/Library/Java/Extensions/vecmath.jar:/c2.fw/lib/plaid-annotations.jar:/System/Library/Java/Extensions/j3daudio.jar:/System/Library/Java/Extensions/QTJava.zip:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/classes.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext/localedata.jar:/System/Library/Java/Extensions/MRJToolkit.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext/apple_provider.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/ui.jar:/System/Library/Java/Extensions/j3dutils.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/jsse.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext/dnsns.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/charsets.jar:/System/Library/Java/Extensions/jai_core.jar::/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/classes.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/ui.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/laf.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/jsse.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/jce.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Classes/charsets.jar:/System/Library/Java/Extensions/AppleScriptEngine.jar:/System/Library/Java/Extensions/dns_sd.jar:/System/Library/Java/Extensions/j3daudio.jar:/System/Library/Java/Extensions/j3dcore.jar:/System/Library/Java/Extensions/j3dutils.jar:/System/Library/Java/Extensions/jai_codec.jar:/System/Library/Java/Extensions/jai_core.jar:/System/Library/Java/Extensions/mlibwrapper_jai.jar:/System/Library/Java/Extensions/MRJToolkit.jar:/System/Library/Java/Extensions/QTJava.zip:/System/Library/Java/Extensions/vecmath.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext/apple_provider.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext/dnsns.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext/localedata.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext/sunjce_provider.jar:/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/lib/ext/sunpkcs11.jar:
--process-dir [MyWorkspaceDirectory]/c2.fw/bin --keep-line-number
--xml-attributes

The Soot plugin extracted the class path and I have no idea why the
class path contains so many redundant entries.

You can find the application code here:
http://softarch.usc.edu/~popescu/soot/c2.fw.zip

Thanks,
Daniel

On Wed, Dec 16, 2009 at 2:16 PM, Eric Bodden
<bodden at st.informatik.tu-darmstadt.de> wrote:
> Daniel can you send us a concrete example including your command line
> options that would allow us to reproduce this?
>
> Eric
>
> --
> Eric Bodden
> Software Technology Group, Technische Universität Darmstadt, Germany
> Tel: +49 6151 16-5478    Fax: +49 6151 16-5410
> Mailing Address: S2|02 A209, Hochschulstraße 10, 64289 Darmstadt
>
>
>
> 2009/12/11 Daniel Popescu <dpopescu at usc.edu>:
>> Hi all.
>>
>> I am trying to analyze some Java legacy systems using the Soot Eclipse
>> plugin. I have been running into some problems and I hope somebody on
>> the list can help me.
>>
>> I have been trying to create a call graph of my application using the
>> Class Hierarchy Analysis. Whenever I am analyzing the Java files of my
>> application, the JastAdd frontent is reporting a semantic error:
>> "Semantic Error: annotation is not applicable to this kind of
>> declaration". The Eclipse JDT parser and the JDK are able to parse
>> these annotations.
>>
>> Since parsing the source code did not work for me, I was trying to
>> analyze the bytecode of the classes. This bytecode-based analysis
>> caused a NullPointerException in a different file.
>>
>> java.lang.reflect.InvocationTargetException
>>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>        at java.lang.reflect.Method.invoke(Method.java:597)
>>        at ca.mcgill.sable.soot.launching.SootThread.run(SootThread.java:138)
>> Caused by: java.lang.NullPointerException
>>        at soot.jimple.toolkits.callgraph.Edge.hashCode(Edge.java:109)
>>        at java.util.HashMap.put(HashMap.java:372)
>>        at java.util.HashSet.add(HashSet.java:200)
>>        at soot.jimple.toolkits.callgraph.CallGraph.addEdge(CallGraph.java:43)
>>        at soot.jimple.toolkits.callgraph.ContextInsensitiveContextManager.addVirtualEdge(ContextInsensitiveContextManager.java:39)
>>        at soot.jimple.toolkits.callgraph.OnFlyCallGraphBuilder.addType(OnFlyCallGraphBuilder.java:111)
>>        at soot.jimple.toolkits.callgraph.CallGraphBuilder.build(CallGraphBuilder.java:94)
>>        at soot.jimple.toolkits.callgraph.CHATransformer.internalTransform(CHATransformer.java:43)
>>        at soot.SceneTransformer.transform(SceneTransformer.java:39)
>>
>> How could I prevent this NullPointerException?
>>
>> I have also noticed that Soot creates the call graph from classes that
>> I would like to ignore (e.g. sun.net.spi.DefaultProxySelector )
>> although the non-application mode is selected. I would have thought
>> that only the files of the project and the process directory would be
>> analyzed. My assumption seems to be wrong. How can I set classes as
>> library classes in the non-application mode?
>>
>> I appreciate your help.
>> Daniel
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>>
>