cant accese aspectjrt.jar with other jar in unity

im use this library for record sound with pause and play: https://github.com/lassana/continuous-audiorecorder

its ok on android, but when i create jar and try to use jar in unity first sound will record and save, but it cant merge with second sound i think it cant access aspectjrt.jar logcat:

 08-25 11:15:22.654    2318-2765/? E/AudioStreamInSample﹕ can not make /data/snd/read_input_7.pcm
 08-25 11:15:22.654    2318-2765/? E/AudioStreamInSample﹕ can not make /data/input_after_resample.pcm
 08-25 11:15:22.654    2318-2765/? E/AudioStreamInSample﹕ can not make /data/input_before_resample.pcm
 08-25 11:15:22.654    2318-2765/? E/AudioStreamInSample﹕ can not make /data/input_after_samsungrecorder.pcm
 08-25 11:15:22.654    2318-2765/? E/AudioStreamInSample﹕ can not make /data/input_before_samsungrecorder.pcm
 08-25 11:15:22.684    2318-9427/? E/samsungRecord﹕ miccalib file can't created. (/data/snd/miccalib.txt)
 08-25 11:15:24.499    2318-2318/? E/AudioStreamInSample﹕ can not make /data/snd/read_input_8.pcm
 08-25 11:15:24.499    2318-2318/? E/AudioStreamInSample﹕ can not make /data/input_after_resample.pcm
 08-25 11:15:24.499    2318-2318/? E/AudioStreamInSample﹕ can not make /data/input_before_resample.pcm
 08-25 11:15:24.504    2318-2318/? E/AudioStreamInSample﹕ can not make /data/input_after_samsungrecorder.pcm
 08-25 11:15:24.504    2318-2318/? E/AudioStreamInSample﹕ can not make /data/input_before_samsungrecorder.pcm
 08-25 11:15:24.524    2318-9437/? E/samsungRecord﹕ miccalib file can't created. (/data/snd/miccalib.txt)
 08-25 11:15:25.969    9310-9444/? E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #4
     Process: com.tafavotco.kibs, PID: 9310
     java.lang.Error: FATAL EXCEPTION [AsyncTask #4]
     Unity version     : 5.1.1f1
     Device model      : samsung SM-N900
     Device fingerprint: samsung/ha3gxx/ha3g:4.4.2/KOT49H/N900XXUEOB1:user/release-keys
     Caused by: java.lang.RuntimeException: An error occured while executing doInBackground()
             at android.os.AsyncTask$3.done(AsyncTask.java:300)
             at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
             at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
             at java.util.concurrent.FutureTask.run(FutureTask.java:242)
             at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
             at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
             at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
             at java.lang.Thread.run(Thread.java:841)
      Caused by: java.lang.NullPointerException
             at com.coremedia.iso.PropertyBoxParserImpl.<init>(PropertyBoxParserImpl.java:67)
             at com.coremedia.iso.IsoFile.<init>(IsoFile.java:59)
             at com.googlecode.mp4parser.authoring.container.mp4.MovieCreator.build(MovieCreator.java:49)
             at com.tafavotco.recorder.Mp4ParserWrapper.append(Mp4ParserWrapper.java:76)
             at com.tafavotco.recorder.Mp4ParserWrapper.append(Mp4ParserWrapper.java:41)
             at com.tafavotco.recorder.AudioRecorder.appendToFile(AudioRecorder.java:228)
             at com.tafavotco.recorder.AudioRecorder.access$6(AudioRecorder.java:227)
             at com.tafavotco.recorder.AudioRecorder$PauseRecordTask.doInBackground(AudioRecorder.java:125)
             at com.tafavotco.recorder.AudioRecorder$PauseRecordTask.doInBackground(AudioRecorder.java:1)
             at android.os.AsyncTask$2.call(AsyncTask.java:288)
             at java.util.concurrent.FutureTask.run(FutureTask.java:237)
             at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
             at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
             at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
             at java.lang.Thread.run(Thread.java:841)