Problem with bouncy castle and android build

[torsten...@googlemail.com]

IDE: Eclipse
Desktop Windows 7
Simulator
Device  Android


Hi,

I've a problem with building my android app including bouncy castle.

I've put the file BouncyCastleCN1Lib.cn1lib in my lib directory.
After that I've started "CodenameOne -> Refresh Libs".
All worked fine and I can use the lib localy without any problems.
The app works fine in the simulator.

Now I've started "CodenameOne -> Send Android Build".
The build has been started correctly, but the build crashes with the following error:

...
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.engines.AESEngine
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.engines.AESEngine
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.params.KeyParameter
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.params.KeyParameter
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.DataLengthException
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.InvalidCipherTextException
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher
Warning: com.workflow.AES_BC: can't find referenced class org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher

...

Warning: there were 14 unresolved references to classes or interfaces.
         You may need to add missing library jars or update their versions.
         If your code works fine without the missing classes, you can suppress
         the warnings with '-dontwarn' options.
         (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
Warning: Exception while processing task java.io.IOException: Please correct the above warnings first.
:transformClassesAndResourcesWithProguardForRelease FAILED
:transformClassesAndResourcesWithProguardForRelease (Thread[Daemon worker,5,main]) completed. Took 5.445 secs.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':transformClassesAndResourcesWithProguardForRelease'.
> java.io.IOException: Please correct the above warnings first.

...


Is there anything I've forgotten ? A setup or something like that ?

Thanks for your help!

kind regards,
Torsten


 

[Shai Almog]

Did you change an old project to use Java 8 or is this a new project?
Can you post the full log?

[torsten...@googlemail.com]

Hi,

I'm using Java 7. It's an older project but I'm added the crypto code now.

Attached you will find the complete error log.

kind regards,

Torsten

[Shai Almog]

Hi,
try sending a build with the hint java.version=8 and see if it solves the issue.

[torsten...@googlemail.com]

Hi,

that doesn't change anything.
I've attached the last error log.

kind regards,
Torsten

[Shai Almog]

Hi,
this should work. Chen can you verify if this is an Eclipse issue?

[Chen Fishbein]

This looks like a progaurd issue, try to build for debug and check if the build works.

If it does works, you can either add the keep options in the build hints or to disable proguard

[torsten...@googlemail.com]

Hi,

I've disabled proguard and now all works fine.
Many thanks for your help.

kind regards,
Torsten

[Shai Almog]

Hi,
that's mostly for debugging but I suggest not doing that in the long term. Are you using Class.forName() or passing a class name to an API?
I suggest using a class literal instead e.g. MyClass.class which will allow the obfuscator to work and produce better/smaller/faster code.