title: Caused by: java.lang.UnsatisfiedLinkError: Library pjsua2 not found
body: <p>I am using pjsua2 lib for voip calling and after building sample application there is a file named pjsua2.so has been created in lib->armebie folder .Now this sample application is running well in version 4.1.1 but same application crashing in version 2.2 and giving exception </p>
  
  <pre><code>04-05 13:27:11.936: W/dalvikvm(8936): VFY: unable to resolve virtual method 81: Ljava/lang/String;.isEmpty ()Z
  04-05 13:27:12.236: W/dalvikvm(8936): Exception Ljava/lang/UnsatisfiedLinkError; thrown during Lorg/pjsip/pjsua2/app/MyApp;.&lt;clinit&gt;
  04-05 13:27:12.236: W/dalvikvm(8936): threadid=1: thread exiting with uncaught exception (group=0x400207d8)
  04-05 13:27:12.256: E/AndroidRuntime(8936): FATAL EXCEPTION: main
  04-05 13:27:12.256: E/AndroidRuntime(8936): java.lang.ExceptionInInitializerError
  04-05 13:27:12.256: E/AndroidRuntime(8936):     at org.pjsip.pjsua2.app.MainActivity.onCreate(MainActivity.java:93)
  04-05 13:27:12.256: E/AndroidRuntime(8936):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
  04-05 13:27:12.256: E/AndroidRuntime(8936):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2633)
  04-05 13:27:12.256: E/AndroidRuntime(8936):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2685)
  04-05 13:27:12.256: E/AndroidRuntime(8936):     at android.app.ActivityThread.access$2300(ActivityThread.java:126)
  04-05 13:27:12.256: E/AndroidRuntime(8936):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2038)
  </code></pre>
  
  <p>So can any one tell me the issue ??</p>
  
  <p>here is make file </p>
  
  <pre><code>include ../../../../../build.mak
  
  LOCAL_PATH  := $(PJDIR)/pjsip-apps/src/swig/java/android
  include $(CLEAR_VARS)
  
  LOCAL_MODULE    := libpjsua2
  LOCAL_CFLAGS    := $(APP_CFLAGS) -frtti -fexceptions
  LOCAL_LDFLAGS   := $(APP_LDFLAGS)
  LOCAL_LDLIBS    := $(APP_LDLIBS)
  LOCAL_SRC_FILES := ../output/pjsua2_wrap.cpp
  
  include $(BUILD_SHARED_LIBRARY)
  </code></pre>