mojira.dev
MCPE-240276

Crash joining Multiplayer/Realms on 4G - CRASH: JNI DETECTED ERROR (obj == null) in libHttpClient.Android.so on IPv6 Mobile Data

The application suffers a hard crash (Fatal Signal 6 / SIGABRT) due to an unhandled NullPointerException in the JNI bridge (libHttpClient.Android.so). The native C++ HTTP client attempts to invoke CallVoidMethodV on a destroyed or null Java object when handling network delays on IPv6/NAT64 mobile connections.

Steps to reproduce the problem:

Connect the Android device to a Mobile Data network restricted to IPv6 routing.

Disable Wi-Fi.

Launch Minecraft Bedrock Edition in a completely unmodified vanilla environment.

Attempt to join a Multiplayer Server or Realm.

Expected result:

The game's HTTP client should gracefully handle the connection delay or failure, validate if the Java object still exists, and safely cancel the request by showing an in-game "Connection Timed Out" message.

Real result:

The Android OS aborts the process immediately because libHttpClient.Android.so attempts to use CallVoidMethodV on a null object, throwing a fatal JNI error and crashing the game entirely. Error log: JNI DETECTED ERROR IN APPLICATION: obj == null in call to CallVoidMethodV.

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We're tracking this issue at MCPE-239705, so I will resolve and link this report as a duplicate.

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André Luiz de Santana Silva

(Unassigned)

Unconfirmed

Android

14

26.32

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