Android Native Extension cannot find implementation for .so functions

Question

I can load some .so libraries but can never call any of their functions. All these .so files are known good and work when I publish/install an Android app via eclipse. But any time I try to call functions from an Air native extention I either get "cannot resolve" or "no implementation found" This occurs after I manually call System.loadLibrary() or use a static block as sampled below. Does the static block have to be on the main activity? I ask because all the LoadLibrary samples I find are always on the Activity. Not sure how to pull that off from my jar file, since Adobe creates the apk and owns the main activity.
So, in trouble shooting I've back tracked to a known good .so file by using the hello_jni sample at http://developer.android.com/tools/sdk/ndk/overview.html#tools
I can instantiate the my native jar extension and even call my FREFunction.
I slowly step through a simple sequence that first instantiates my NativeHello.java class
package com.example.hellojni;
public class NativeHello
          public static String libName = "hello-jni";
          static
      System.loadLibrary(libName);
          public native String stringFromJNI();
At instantiation, Logcat reports...
Trying to load lib /data/data/air.air.Vuforia/lib/libhello-jni.so 0x406d9938
Added shared lib /data/data/air.air.Vuforia/lib/libhello-jni.so 0x406d9938
No JNI_OnLoad found in /data/data/air.air.Vuforia/lib/libhello-jni.so 0x406d9938, skipping init
So looks like library loads correctly, I confirmed by purposely removing the .so file from the apk publishing and I get different "linkage" error. So I'm confident it is loaded.
But once I call the native function stringFromJNI();
I get...
No implementation found for native Lcom/example/hellojni/NativeHello;.stringFromJNI ()Ljava/lang/String;
I followed http://help.adobe.com/en_US/air/extensions/WSf268776665d7970d-2482335412ffea65006-8000.htm l
but just cannot call any functions within any .so file
Please help, my client's project is on hold because of this.

Answer 1

Any progress on it? I have the same problem...
Thanks