Apps Integrating External jars(Drools Jars) in Android

[vinay1497]

Hello Android Programmers,

I am new to Android,
want to integrate the Drools rules Engine into the Android Application, but i am unable to run the application if i had integrated the drools jar's into the android.

I have used the Eclipse Galileo
with Android 2.2 and drools 5.1

Simply i can integrate the external jars in following ways:

1) From java build path
2) separate folder as lib and added the jars

But i am unable to run the program.
i am getting following error from LogCat
--------------------------------------------------
06-08 09:41:53.454: ERROR/AndroidRuntime(327): FATAL EXCEPTION: main
06-08 09:41:53.454: ERROR/AndroidRuntime(327): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.cisco/com.cisco.Ghoom}: java.lang.NullPointerException
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at android.os.Handler.dispatchMessage(Handler.java:99)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at android.os.Looper.loop(Looper.java:123)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at android.app.ActivityThread.main(ActivityThread.java:4627)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at java.lang.reflect.Method.invokeNative(Native Method)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at java.lang.reflect.Method.invoke(Method.java:521)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at dalvik.system.NativeStart.main(Native Method)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): Caused by: java.lang.NullPointerException
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at com.cisco.Ghoom.onCreate(Ghoom.java:34)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
06-08 09:41:53.454: ERROR/AndroidRuntime(327): ... 11 more
------------------------------------------------

It would be helpful for me if any one can solve

or simply explain how to integrate the third party jars in android in different ways..

Regards
Vinay Guntaka

 

[abhay_bc]

hi vinay

i am in same boat .. any luck with this one ? Were u able to get this to work ?

-abhay