Production Android app showing Caused by: java.lang.NoClassDefFoundError errors

1
votes

How can a production app show a class not found error to users but on the emulator it works just fine with Android 9.0. Shouldnt the emulator also break or show an error during compiling or building?

java.lang.RuntimeException:

at android.os.AsyncTask$3.done (AsyncTask.java:354) at java.util.concurrent.FutureTask.finishCompletion (FutureTask.java:383) at java.util.concurrent.FutureTask.setException (FutureTask.java:252) at java.util.concurrent.FutureTask.run (FutureTask.java:271) at android.os.AsyncTask$SerialExecutor$1.run (AsyncTask.java:245) at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1167) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:641) at java.lang.Thread.run (Thread.java:764)

Caused by: java.lang.NoClassDefFoundError:

at org.apache.http.impl.client.AbstractHttpClient. (AbstractHttpClient.java:182) at org.apache.http.impl.client.DefaultHttpClient. (DefaultHttpClient.java:150) at com.exposure.utilities.RestClient.executeRequest (RestClient.java:162) at com.exposure.utilities.RestClient.Execute (RestClient.java:127)
at com.exposure.utilities.Utility.getData (Utility.java:162) at com.exposure.utilities.DataTask.doInBackground (DataTask.java:26) at com.exposure.utilities.DataTask.doInBackground (DataTask.java:9) at android.os.AsyncTask$2.call (AsyncTask.java:333) at java.util.concurrent.FutureTask.run (FutureTask.java:266)

Caused by: java.lang.ClassNotFoundException:

at dalvik.system.BaseDexClassLoader.findClass (BaseDexClassLoader.java:134) at java.lang.ClassLoader.loadClass (ClassLoader.java:379) at java.lang.ClassLoader.loadClass (ClassLoader.java:312)

1
javaandroidandroid-studiogoogle-play
Is this happening on device with android pie? - karan
Yes, but I have 450 apps, why in the world would it be throwing an error on load where no one can use it? - Mike Flynn

1 Answers

2
votes

It looks like this is due to http client being deprecated. Add below code to your manifest application tag.

<uses-library android:name="org.apache.http.legacy" android:required="false"/>

With android pie they have deprecated support for Apache HTTP client starting from andorid pie, check change log for reference https://developer.android.com/about/versions/pie/android-9.0-changes-28#apache-p