NullPointerException when analyzing APK

[eugenood]

Hi. Whenever I run sireum amandroid genCallGraph, I got NullPointerException output in the .errorlog file. The error log is similar to that of issue #17:

An error occured on 20150325-145830
java.lang.NullPointerException
    at scala.collection.mutable.ArrayOps$ofRef$.length$extension(ArrayOps.scala:192)
    at scala.collection.mutable.ArrayOps$ofRef.length(ArrayOps.scala:192)
    at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:32)
    at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
    at org.sireum.util.FileUtil$.listFiles(File.scala:51)
    at org.sireum.jawa.JawaCodeSource$.load(JawaCodeSource.scala:75)
    at org.sireum.amandroid.cli.GenCallGraph$$anonfun$genCallGraph$1.apply(GenCallGraph.scala:137)
    at org.sireum.amandroid.cli.GenCallGraph$$anonfun$genCallGraph$1.apply(GenCallGraph.scala:123)
    at scala.collection.immutable.Set$Set1.foreach(Set.scala:79)
    at org.sireum.amandroid.cli.GenCallGraph$.genCallGraph(GenCallGraph.scala:122)
    at org.sireum.amandroid.cli.GenCallGraph$.main(GenCallGraph.scala:112)
    at org.sireum.amandroid.cli.GenCallGraph.main(GenCallGraph.scala)

Similar to that issue, I was able to run on Ubuntu 14.04, but unable to run on CentOS 6.5. The suggested solution is to install lib32, but which package, in particular, do I need?

Additional information: I did not compile it via Eclipse, but instead used the built version from sireum site, and run sireum amandroid to install the necessary files. Also, the system doesn't have a lib32 directory, only lib and lib64.

[fgwei]

You can go to Sireum/apps/amandroid/dex2pilar/linux64 and then 'ldd newdex2pilar' it should list the missing libraries. For install lib32 you can try: http://sixarm.com/about/ubuntu-apt-get-install-ia32-for-32-bit-on-64-bit.html

[eugenood]

Found the dependencies. Solved and thanks.

[eugenood]

I realized that on the development branch, there is a particular dependency named libc++.so. In particular, when I ldd newdex2pillar, this is what I got.

    linux-gate.so.1 =>  (0xf77bf000)
    libc++.so => not found
    libpthread.so.0 => /lib32/libpthread.so.0 (0xf7764000)
    libz.so.1 => /usr/lib32/libz.so.1 (0xf774a000)
    libc.so.6 => /lib32/libc.so.6 (0xf759f000)
    libm.so.6 => /lib32/libm.so.6 (0xf7559000)
    /lib/ld-linux.so.2 (0xf77c0000)

At first, I thought this is the libcxx library, so I tried compiling them, but the libc++.so is still not found. What should I do to obtain this particular library?

[fgwei]

You can try this one apt-get install lib32stdc++6.

[eugenood]

Sorry, does not work. Here is more information that might be useful. Before I switched to development branch (i.e. I'm in stable branch), the newdex2pilar does not require such dependency. But after I switched and update, this dependency is required. Right now, I could make it work by replacing the development version of newdex2pilar to the stable one. Even though I don't see any problem right now, do you think it will cause any?

[fgwei]

I remember the newdex2pilar in stable sireum cannot work on new android apps like > android5.0. And it cannot handle apps generated via intellij. Can you try this: sudo apt-get install libc6:i386 libstdc++6:i386 zlib1g:i386

[eugenood]

Still not working. Do you need any other information?

[fgwei]

I guess the libc++.so should already installed somewhere, but does not in your PATH.

[eugenood]

I found the libc++.so under /usr/lib, and added it both to PATH and LD_LIBRARY_PATH, exporting them, but it does not work.

[fgwei]

How ldd newdex2pilar shows?

[eugenood]

The same as before. In fact, I already added them before I asked the question.

[eugenood]

I manage to get it to work. Turns out, it requires the 32-bit version, when I have the 64-bit version. So, just apt-get install libc++-dev:i386 will do. However, when I tried to stage the Whatsapp app, it seems like it does not generate the graphs, is that an expected behavior, if so, why?

[fgwei]

Thanks for the information.

Have you updated sireum?

[eugenood]

Yes, just updated. Here is the output:

mainuser@thinkpad-ubuntu:~/Files$ sireum amandroid staging com.whatsapp.apk 
Total apks: 1
Cleaning up unclosed ZipFile for archive /home/mainuser/apktool/framework/1.apk
Cleaning up unclosed ZipFile for archive /home/mainuser/Files/com.whatsapp.apk

I can get the graphs by running on Sources provided with Amandroid, but not with these apps.

[eugenood]

I also got this when trying to use genGraph:

mainuser@thinkpad-ubuntu:~/Files$ sireum amandroid genGraph -t APK com.whatsapp.apk 
Unexpected type: APK

[fgwei]

Your last question was a bug in my code. Fixed in: https://github.com/sireum/amandroid/commit/e804be57d4910abbb9acca42201398598a67c197

[eugenood]

Noted. Thanks.

[vitaliiavdiienko]

The same error as in the 1st post appears in the DEV branch on my MAC.

The thing is that everything works on STABLE branch, but on DEV branch everything crashes.

I have tried via Eclipse and via ./sireum amandroid taintAnalysis.

Any idea how to fix this?

Thanks.

[fgwei]

Is the error still there?

[vitaliiavdiienko]

I have redownloaded Sireum and Amandroid and problem has been disappeared.