Program: 177478
Project: 177478
Buggy source:
@Override public void finalizeRun(){
  if (entityManager != null) {
    if (entityManager != entityManagerLive.get() || controller != controllerLive.get()) {
      SpoutRegion r=(SpoutRegion)chunk.getRegion();
      r.removeEntity(this);
      if (entityManagerLive.get() == null) {
        controller.onDeath();
        if (controller instanceof PlayerController) {
          Player p=((PlayerController)controller).getPlayer();
          p.getNetworkSynchronizer().onDeath();
        }
      }
    }
  }
  if (entityManagerLive.get() != null) {
    if (entityManager != entityManagerLive.get() || controller != controllerLive.get()) {
      entityManagerLive.get().allocate(this);
    }
  }
  if (chunkLive.get() != chunk) {
    if (chunkLive.get() != null) {
      ((SpoutChunk)chunkLive.get()).addEntity(this);
      if (observer) {
        chunkLive.get().refreshObserver(this);
      }
    }
    if (chunk != null && chunk.isLoaded()) {
      ((SpoutChunk)chunk).removeEntity(this);
      if (observer) {
        chunk.removeObserver(this);
      }
    }
    if (chunkLive.get() == null) {
      if (chunk != null && chunk.isLoaded()) {
        ((SpoutChunk)chunk).removeEntity(this);
        if (observer) {
          chunk.removeObserver(this);
        }
      }
      if (entityManagerLive.get() != null) {
        entityManagerLive.get().deallocate(this);
      }
    }
  }
  if (observerLive.get() != observer) {
    observer=!observer;
    if (observer) {
      chunkLive.get().refreshObserver(this);
    }
 else {
      chunkLive.get().removeObserver(this);
    }
  }
}

Fixed version (ground truth):
@Override public void finalizeRun(){
  if (entityManager != null) {
    if (entityManager != entityManagerLive.get() || controller != controllerLive.get()) {
      SpoutRegion r=(SpoutRegion)chunk.getRegion();
      r.removeEntity(this);
      if (isDead()) {
        controller.onDeath();
        if (controller instanceof PlayerController) {
          Player p=((PlayerController)controller).getPlayer();
          if (p != null) {
            p.getNetworkSynchronizer().onDeath();
          }
        }
      }
    }
  }
  if (entityManagerLive.get() != null) {
    if (entityManager != entityManagerLive.get() || controller != controllerLive.get()) {
      entityManagerLive.get().allocate(this);
    }
  }
  if (chunkLive.get() != chunk) {
    if (chunkLive.get() != null) {
      ((SpoutChunk)chunkLive.get()).addEntity(this);
      if (observer) {
        chunkLive.get().refreshObserver(this);
      }
    }
    if (chunk != null && chunk.isLoaded()) {
      ((SpoutChunk)chunk).removeEntity(this);
      if (observer) {
        chunk.removeObserver(this);
      }
    }
    if (chunkLive.get() == null) {
      if (chunk != null && chunk.isLoaded()) {
        ((SpoutChunk)chunk).removeEntity(this);
        if (observer) {
          chunk.removeObserver(this);
        }
      }
      if (entityManagerLive.get() != null) {
        entityManagerLive.get().deallocate(this);
      }
    }
  }
  if (observerLive.get() != observer) {
    observer=!observer;
    if (observer) {
      chunkLive.get().refreshObserver(this);
    }
 else {
      chunkLive.get().removeObserver(this);
    }
  }
}