# JNI DETECTED ERROR IN APPLICATION: JNI GetStaticMethodID called withing exception java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.String android.content.SharedPreferences.getString(java.lang.String, java.lang.String)

**URL:** <https://devforum.zoom.us/t/jni-detected-error-in-application-jni-getstaticmethodid-called-withing-exception-java-lang-nullpointerexception-attempt-to-invoke-interface-method-java-lang-string-android-content-sharedpreferences-getstring-java-lang-string-java-lang-string/52736>\
**Category:** Android\
**Created:** [June 18, 2021, 4:16pm UTC](https://devforum.zoom.us/t/jni-detected-error-in-application-jni-getstaticmethodid-called-withing-exception-java-lang-nullpointerexception-attempt-to-invoke-interface-method-java-lang-string-android-content-sharedpreferences-getstring-java-lang-string-java-lang-string/52736 "2021-06-18T16:16:07Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![urv1388](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/urv1388/32/22609_2.png) [@urv1388](https://devforum.zoom.us/u/urv1388)\
**Post date:** [June 18, 2021, 4:16pm UTC](https://devforum.zoom.us/t/jni-detected-error-in-application-jni-getstaticmethodid-called-withing-exception-java-lang-nullpointerexception-attempt-to-invoke-interface-method-java-lang-string-android-content-sharedpreferences-getstring-java-lang-string-java-lang-string/52736/1 "2021-06-18T16:16:07Z")

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JNI DETECTED ERROR IN APPLICATION: JNI GetStaticMethodID called with pending exception java.lang.NullPointerException: Attempt to invoke interface method ‘java.lang.String android.content.SharedPreferences.getString(java.lang.String, java.lang.String)’ on a null object reference  
at java.lang.String com.zipow.videobox.util.PreferenceUtil.readStringValue(java.lang.String, java.lang.String) (PreferenceUtil.java:312)  
at int us.zoom.internal.SDKEngine.initializeImpl(us.zoom.internal.RTCInitContext) (SDKEngine.java:-2)  
at int us.zoom.internal.SDKEngine.initialize(us.zoom.internal.RTCInitContext) (SDKEngine.java:7)  
at int us.zoom.sdk.c.initialize(android.content.Context, us.zoom.sdk.ZoomInstantSDKInitParams) (ZoomInstantSDKImpl.java:466)  
at void com.tme.gerryconnect.app.main.MainActivity.onCreate(android.os.Bundle) (MainActivity.kt:76)  
at void android.app.Activity.performCreate(android.os.Bundle, android.os.PersistableBundle) (Activity.java:7957)  
at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:7946)  
at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1307)  
at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:3530)  
at android.app.Activity android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.app.servertransaction.PendingTransactionActions, android.content.Intent) (ActivityThread.java:3707)  
at void android.app.servertransaction.LaunchActivityItem.execute(android.app.ClientTransactionHandler, android.os.IBinder, android.app.servertransaction.PendingTransactionActions) (LaunchActivityItem.java:83)  
at void android.app.servertransaction.TransactionExecutor.executeCallbacks(android.app.servertransaction.ClientTransaction) (TransactionExecutor.java:135)  
at void android.app.servertransaction.TransactionExecutor.execute(android.app.servertransaction.ClientTransaction) (TransactionExecutor.java:95)  
at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:2220)  
at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:107)  
at void android.os.Looper.loop() (Looper.java:237)  
at void android.app.ActivityThread.main(java.lang.String) (ActivityThread.java:8016)  
at java.lang.Object java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object) (Method.java:-2)  
at void com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run() (RuntimeInit.java:496)  
at void com.android.internal.os.ZygoteInit.main(java.lang.String) (ZygoteInit.java:1087)

in call to GetStaticMethodID  
from int us.zoom.internal.SDKEngine.initializeImpl(us.zoom.internal.RTCInitContext)

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<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [June 21, 2021, 4:19pm UTC](https://devforum.zoom.us/t/jni-detected-error-in-application-jni-getstaticmethodid-called-withing-exception-java-lang-nullpointerexception-attempt-to-invoke-interface-method-java-lang-string-android-content-sharedpreferences-getstring-java-lang-string-java-lang-string/52736/2 "2021-06-21T16:19:03Z")

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Hi @urv1388, thanks for the post.

Sorry to hear you are experiencing this error. Can you please confirm where you are seeing this, including any relevant code snippets or steps to reproduce? Also, which version of the SDK are you using?

Thanks!

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [July 22, 2021, 2:19am UTC](https://devforum.zoom.us/t/jni-detected-error-in-application-jni-getstaticmethodid-called-withing-exception-java-lang-nullpointerexception-attempt-to-invoke-interface-method-java-lang-string-android-content-sharedpreferences-getstring-java-lang-string-java-lang-string/52736/3 "2021-07-22T02:19:17Z")

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Closed on July 22, 2021, 2:19am UTC

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