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NPE on OCCapability.getAssistant() #16451

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#16452
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NPE on OCCapability.getAssistant()#16451
#16452
Assignees
alperozturk96
Labels
bug

Description

@cenaaqeel45-web
cenaaqeel45-web
opened on Feb 5, 2026

⚠️ Before posting ⚠️

  • This is a bug, not a question or an enhancement.
  • I've searched for similar issues and didn't find a duplicate.
  • I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
  • I agree to follow Nextcloud's Code of Conduct.

Steps to reproduce

Cause of error

Exception in thread "main" java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nextcloud.client/com.owncloud.android.ui.activity.FileDisplayActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'com.owncloud.android.lib.resources.status.CapabilityBooleanType com.owncloud.android.lib.resources.status.OCCapability.getAssistant()' on a null object reference
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4703)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4932)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:222)
    at android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:136)
    at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:106)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:83)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:3085)
    at android.os.Handler.dispatchMessage(Handler.java:114)
    at android.os.Looper.loopOnce(Looper.java:267)
    at android.os.Looper.loop(Looper.java:360)
    at android.app.ActivityThread.main(ActivityThread.java:10054)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:616)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1115)
Caused by: Exception in thread "main" java.lang.NullPointerException: Attempt to invoke virtual method 'com.owncloud.android.lib.resources.status.CapabilityBooleanType com.owncloud.android.lib.resources.status.OCCapability.getAssistant()' on a null object reference
    at com.owncloud.android.ui.activity.DrawerActivity.checkAssistantBottomNavigationMenu(DrawerActivity.java:328)
    at com.owncloud.android.ui.activity.DrawerActivity.setupDrawer(DrawerActivity.java:274)
    at com.owncloud.android.ui.activity.FileDisplayActivity.onCreate(FileDisplayActivity.kt:281)
    at android.app.Activity.performCreate(Activity.java:9380)
    at android.app.Activity.performCreate(Activity.java:9323)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1537)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4685)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4932)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:222)
    at android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:136)
    at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:106)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:83)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:3085)
    at android.os.Handler.dispatchMessage(Handler.java:114)
    at android.os.Looper.loopOnce(Looper.java:267)
    at android.os.Looper.loop(Looper.java:360)
    at android.app.ActivityThread.main(ActivityThread.java:10054)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:616)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1115)

App information

  • ID: com.nextcloud.client
  • Version: 30360051
  • Build flavor: generic

Device information

  • Brand: Xiaomi
  • Device: degas
  • Model: 2406APNFAG
  • Id: BP2A.250605.031.A3
  • Product: degas_global

Firmware

  • SDK: 36
  • Release: 16
  • Incremental: OS3.0.3.0.WNEMIXM

Expected behaviour

Cause of error

Exception in thread "main" java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nextcloud.client/com.owncloud.android.ui.activity.FileDisplayActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'com.owncloud.android.lib.resources.status.CapabilityBooleanType com.owncloud.android.lib.resources.status.OCCapability.getAssistant()' on a null object reference
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4703)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4932)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:222)
    at android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:136)
    at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:106)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:83)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:3085)
    at android.os.Handler.dispatchMessage(Handler.java:114)
    at android.os.Looper.loopOnce(Looper.java:267)
    at android.os.Looper.loop(Looper.java:360)
    at android.app.ActivityThread.main(ActivityThread.java:10054)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:616)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1115)
Caused by: Exception in thread "main" java.lang.NullPointerException: Attempt to invoke virtual method 'com.owncloud.android.lib.resources.status.CapabilityBooleanType com.owncloud.android.lib.resources.status.OCCapability.getAssistant()' on a null object reference
    at com.owncloud.android.ui.activity.DrawerActivity.checkAssistantBottomNavigationMenu(DrawerActivity.java:328)
    at com.owncloud.android.ui.activity.DrawerActivity.setupDrawer(DrawerActivity.java:274)
    at com.owncloud.android.ui.activity.FileDisplayActivity.onCreate(FileDisplayActivity.kt:281)
    at android.app.Activity.performCreate(Activity.java:9380)
    at android.app.Activity.performCreate(Activity.java:9323)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1537)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4685)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4932)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:222)
    at android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:136)
    at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:106)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:83)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:3085)
    at android.os.Handler.dispatchMessage(Handler.java:114)
    at android.os.Looper.loopOnce(Looper.java:267)
    at android.os.Looper.loop(Looper.java:360)
    at android.app.ActivityThread.main(ActivityThread.java:10054)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:616)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1115)

App information

  • ID: com.nextcloud.client
  • Version: 30360051
  • Build flavor: generic

Device information

  • Brand: Xiaomi
  • Device: degas
  • Model: 2406APNFAG
  • Id: BP2A.250605.031.A3
  • Product: degas_global

Firmware

  • SDK: 36
  • Release: 16
  • Incremental: OS3.0.3.0.WNEMIXM

Actual behaviour

Cause of error

Exception in thread "main" java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nextcloud.client/com.owncloud.android.ui.activity.FileDisplayActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'com.owncloud.android.lib.resources.status.CapabilityBooleanType com.owncloud.android.lib.resources.status.OCCapability.getAssistant()' on a null object reference
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4703)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4932)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:222)
    at android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:136)
    at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:106)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:83)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:3085)
    at android.os.Handler.dispatchMessage(Handler.java:114)
    at android.os.Looper.loopOnce(Looper.java:267)
    at android.os.Looper.loop(Looper.java:360)
    at android.app.ActivityThread.main(ActivityThread.java:10054)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:616)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1115)
Caused by: Exception in thread "main" java.lang.NullPointerException: Attempt to invoke virtual method 'com.owncloud.android.lib.resources.status.CapabilityBooleanType com.owncloud.android.lib.resources.status.OCCapability.getAssistant()' on a null object reference
    at com.owncloud.android.ui.activity.DrawerActivity.checkAssistantBottomNavigationMenu(DrawerActivity.java:328)
    at com.owncloud.android.ui.activity.DrawerActivity.setupDrawer(DrawerActivity.java:274)
    at com.owncloud.android.ui.activity.FileDisplayActivity.onCreate(FileDisplayActivity.kt:281)
    at android.app.Activity.performCreate(Activity.java:9380)
    at android.app.Activity.performCreate(Activity.java:9323)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1537)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4685)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4932)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:222)
    at android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:136)
    at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:106)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:83)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:3085)
    at android.os.Handler.dispatchMessage(Handler.java:114)
    at android.os.Looper.loopOnce(Looper.java:267)
    at android.os.Looper.loop(Looper.java:360)
    at android.app.ActivityThread.main(ActivityThread.java:10054)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:616)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1115)

App information

  • ID: com.nextcloud.client
  • Version: 30360051
  • Build flavor: generic

Device information

  • Brand: Xiaomi
  • Device: degas
  • Model: 2406APNFAG
  • Id: BP2A.250605.031.A3
  • Product: degas_global

Firmware

  • SDK: 36
  • Release: 16
  • Incremental: OS3.0.3.0.WNEMIXM

Android version

16

Device brand and model

Xiaomi

Stock or custom OS?

Stock

Nextcloud android app version

All

Nextcloud server version

8

Using a reverse proxy?

I don't know

Android logs

Cause of error

Exception in thread "main" java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nextcloud.client/com.owncloud.android.ui.activity.FileDisplayActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'com.owncloud.android.lib.resources.status.CapabilityBooleanType com.owncloud.android.lib.resources.status.OCCapability.getAssistant()' on a null object reference
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4703)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4932)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:222)
    at android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:136)
    at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:106)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:83)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:3085)
    at android.os.Handler.dispatchMessage(Handler.java:114)
    at android.os.Looper.loopOnce(Looper.java:267)
    at android.os.Looper.loop(Looper.java:360)
    at android.app.ActivityThread.main(ActivityThread.java:10054)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:616)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1115)
Caused by: Exception in thread "main" java.lang.NullPointerException: Attempt to invoke virtual method 'com.owncloud.android.lib.resources.status.CapabilityBooleanType com.owncloud.android.lib.resources.status.OCCapability.getAssistant()' on a null object reference
    at com.owncloud.android.ui.activity.DrawerActivity.checkAssistantBottomNavigationMenu(DrawerActivity.java:328)
    at com.owncloud.android.ui.activity.DrawerActivity.setupDrawer(DrawerActivity.java:274)
    at com.owncloud.android.ui.activity.FileDisplayActivity.onCreate(FileDisplayActivity.kt:281)
    at android.app.Activity.performCreate(Activity.java:9380)
    at android.app.Activity.performCreate(Activity.java:9323)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1537)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4685)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4932)
    at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:222)
    at android.app.servertransaction.TransactionExecutor.executeNonLifecycleItem(TransactionExecutor.java:136)
    at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:106)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:83)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:3085)
    at android.os.Handler.dispatchMessage(Handler.java:114)
    at android.os.Looper.loopOnce(Looper.java:267)
    at android.os.Looper.loop(Looper.java:360)
    at android.app.ActivityThread.main(ActivityThread.java:10054)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:616)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1115)

App information

  • ID: com.nextcloud.client
  • Version: 30360051
  • Build flavor: generic

Device information

  • Brand: Xiaomi
  • Device: degas
  • Model: 2406APNFAG
  • Id: BP2A.250605.031.A3
  • Product: degas_global

Firmware

  • SDK: 36
  • Release: 16
  • Incremental: OS3.0.3.0.WNEMIXM

Server error logs



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