Program: 110377
Project: 110377
Buggy source:
private void doSomeWork() throws ExoPlaybackException, IOException {
  long operationStartTimeMs=SystemClock.elapsedRealtime();
  timeline.updateSources();
  if (timeline.getSampleSource() == null) {
    timeline.maybeThrowSourcePrepareError();
    scheduleNextOperation(MSG_DO_SOME_WORK,operationStartTimeMs,PREPARING_SOURCE_INTERVAL_MS);
    return;
  }
  TraceUtil.beginSection("String_Node_Str");
  updatePlaybackPositions();
  boolean allRenderersEnded=true;
  boolean allRenderersReadyOrEnded=true;
  for (  TrackRenderer renderer : enabledRenderers) {
    renderer.render(internalPositionUs,elapsedRealtimeUs);
    allRenderersEnded=allRenderersEnded && renderer.isEnded();
    boolean rendererReadyOrEnded=isReadyOrEnded(renderer);
    if (!rendererReadyOrEnded) {
      renderer.maybeThrowStreamError();
    }
    allRenderersReadyOrEnded=allRenderersReadyOrEnded && rendererReadyOrEnded;
  }
  if (!allRenderersReadyOrEnded) {
    timeline.maybeThrowSourcePrepareError();
  }
  if (allRenderersEnded && (playbackInfo.durationUs == C.UNSET_TIME_US || playbackInfo.durationUs <= playbackInfo.positionUs) && timeline.isEnded) {
    setState(ExoPlayer.STATE_ENDED);
    stopRenderers();
  }
 else   if (state == ExoPlayer.STATE_BUFFERING) {
    if ((enabledRenderers.length > 0 ? allRenderersReadyOrEnded : timeline.isReady) && bufferingPolicy.haveSufficientBuffer(playbackInfo.bufferedPositionUs,rebuffering)) {
      setState(ExoPlayer.STATE_READY);
      if (playWhenReady) {
        startRenderers();
      }
    }
  }
 else   if (state == ExoPlayer.STATE_READY) {
    if (enabledRenderers.length > 0 ? !allRenderersReadyOrEnded : !timeline.isReady) {
      rebuffering=playWhenReady;
      setState(ExoPlayer.STATE_BUFFERING);
      stopRenderers();
    }
  }
  handler.removeMessages(MSG_DO_SOME_WORK);
  if ((playWhenReady && state == ExoPlayer.STATE_READY) || state == ExoPlayer.STATE_BUFFERING) {
    scheduleNextOperation(MSG_DO_SOME_WORK,operationStartTimeMs,RENDERING_INTERVAL_MS);
  }
 else   if (enabledRenderers.length != 0) {
    scheduleNextOperation(MSG_DO_SOME_WORK,operationStartTimeMs,IDLE_INTERVAL_MS);
  }
  TraceUtil.endSection();
}

Fixed version (ground truth):
private void doSomeWork() throws ExoPlaybackException, IOException {
  long operationStartTimeMs=SystemClock.elapsedRealtime();
  timeline.updateSources();
  if (timeline.getSampleSource() == null) {
    timeline.maybeThrowSourcePrepareError();
    scheduleNextOperation(MSG_DO_SOME_WORK,operationStartTimeMs,PREPARING_SOURCE_INTERVAL_MS);
    return;
  }
  TraceUtil.beginSection("String_Node_Str");
  updatePlaybackPositions();
  boolean allRenderersEnded=true;
  boolean allRenderersReadyOrEnded=true;
  for (  TrackRenderer renderer : enabledRenderers) {
    renderer.render(internalPositionUs,elapsedRealtimeUs);
    allRenderersEnded=allRenderersEnded && renderer.isEnded();
    boolean rendererReadyOrEnded=renderer.isReady() || renderer.isEnded();
    if (!rendererReadyOrEnded) {
      renderer.maybeThrowStreamError();
    }
    allRenderersReadyOrEnded=allRenderersReadyOrEnded && rendererReadyOrEnded;
  }
  if (!allRenderersReadyOrEnded) {
    timeline.maybeThrowSourcePrepareError();
  }
  if (allRenderersEnded && (playbackInfo.durationUs == C.UNSET_TIME_US || playbackInfo.durationUs <= playbackInfo.positionUs) && timeline.isEnded) {
    setState(ExoPlayer.STATE_ENDED);
    stopRenderers();
  }
 else   if (state == ExoPlayer.STATE_BUFFERING) {
    if ((enabledRenderers.length > 0 ? allRenderersReadyOrEnded : timeline.isReady) && bufferingPolicy.haveSufficientBuffer(playbackInfo.bufferedPositionUs,rebuffering)) {
      setState(ExoPlayer.STATE_READY);
      if (playWhenReady) {
        startRenderers();
      }
    }
  }
 else   if (state == ExoPlayer.STATE_READY) {
    if (enabledRenderers.length > 0 ? !allRenderersReadyOrEnded : !timeline.isReady) {
      rebuffering=playWhenReady;
      setState(ExoPlayer.STATE_BUFFERING);
      stopRenderers();
    }
  }
  handler.removeMessages(MSG_DO_SOME_WORK);
  if ((playWhenReady && state == ExoPlayer.STATE_READY) || state == ExoPlayer.STATE_BUFFERING) {
    scheduleNextOperation(MSG_DO_SOME_WORK,operationStartTimeMs,RENDERING_INTERVAL_MS);
  }
 else   if (enabledRenderers.length != 0) {
    scheduleNextOperation(MSG_DO_SOME_WORK,operationStartTimeMs,IDLE_INTERVAL_MS);
  }
  TraceUtil.endSection();
}