sending message to a Handler on a dead thread
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Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 15/100
Research direction
The stack trace ends in Android framework code (CameraDeviceImpl.ClientStateCallback.onClosed), with no RootEncoder frame, so the cause is not visible from the payload. Start by reproducing it: stream from the camera, then turn the camera off, and look for where the repository closes the camera and releases its handler or thread. Done when the 'dead thread' error no longer appears in logcat after that sequence.
Written by the indexing model from the issue text.
Description
When the camera is turned off?
2026-02-18 15:29:38.237 LegacyMessageQueue com.pedro.streamer Handler (android.os.Handler) {1d575b8} sending message to a Handler on a dead thread
java.lang.IllegalStateException: Handler (android.os.Handler) {1d575b8} sending message to a Handler on a dead thread
at android.os.MessageQueue.enqueueMessageLegacy(MessageQueue.java:1391)
at android.os.MessageQueue.enqueueMessage(MessageQueue.java:1500)
at android.os.Handler.enqueueMessage(Handler.java:790)
at android.os.Handler.sendMessageAtTime(Handler.java:739)
at android.os.Handler.sendMessageDelayed(Handler.java:709)
at android.os.Handler.post(Handler.java:439)
at android.hardware.camera2.impl.CameraDeviceImpl$CameraHandlerExecutor.execute(CameraDeviceImpl.java:2874)
at android.hardware.camera2.impl.CameraDeviceImpl$ClientStateCallback.onClosed(CameraDeviceImpl.java:348)
at android.hardware.camera2.impl.CameraDeviceImpl$7.run(CameraDeviceImpl.java:301)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1154)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:652)
at java.lang.Thread.run(Thread.java:1563)
- Dominant language
- Kotlin
- Stars
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- Forks
- 946
- Avg merge
- 4d 6h
- Merged PRs (30d)
- 9
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