# Sealed classes error when integrated latest Zoom SDK with my app

**URL:** <https://devforum.zoom.us/t/sealed-classes-error-when-integrated-latest-zoom-sdk-with-my-app/136148>\
**Category:** Android\
**Created:** [August 6, 2025, 9:29am UTC](https://devforum.zoom.us/t/sealed-classes-error-when-integrated-latest-zoom-sdk-with-my-app/136148 "2025-08-06T09:29:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![AjinkyaKulkarni](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/ajinkyakulkarni/32/49104_2.png) [@AjinkyaKulkarni](https://devforum.zoom.us/u/AjinkyaKulkarni)\
**Post date:** [August 6, 2025, 9:29am UTC](https://devforum.zoom.us/t/sealed-classes-error-when-integrated-latest-zoom-sdk-with-my-app/136148/1 "2025-08-06T09:29:05Z")

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Facing issue in building app when integrated the latest meeting SDK version **6.5.6.31810** and the app has stopped building. It shows following error primarily -

java.lang.NullPointerException: Cannot invoke “org.w3c.dom.Node.getLocalName()” because “node” is null

And

Caused by: [CIRCULAR REFERENCE: com.android.tools.r8.internal.YI0: Sealed classes are not supported as program classes]

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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:** [August 6, 2026, 9:29am UTC](https://devforum.zoom.us/t/sealed-classes-error-when-integrated-latest-zoom-sdk-with-my-app/136148/2 "2026-08-06T09:29:19Z")

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Closed on August 6, 2026, 9:29am UTC

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