Program: 27524
Project: 27524
Buggy source:
public static Event callForgeEvent(Event spongeEvent,Class<? extends net.minecraftforge.fml.common.eventhandler.Event> clazz){
  if (EntityItemPickupEvent.class.isAssignableFrom(clazz)) {
    return callEntityItemPickupEvent(spongeEvent);
  }
 else   if (PlayerInteractEvent.EntityInteractSpecific.class.isAssignableFrom(clazz)) {
    return callEntityInteractEvent(spongeEvent);
  }
 else   if (PlayerInteractEvent.EntityInteract.class.isAssignableFrom(clazz)) {
    return callEntityInteractEvent(spongeEvent);
  }
 else   if (BlockEvent.NeighborNotifyEvent.class.isAssignableFrom(clazz)) {
    return callNeighborNotifyEvent(spongeEvent);
  }
 else   if (BlockEvent.PlaceEvent.class.isAssignableFrom(clazz)) {
    return callBlockPlaceEvent(spongeEvent);
  }
 else   if (PlayerInteractEvent.class.isAssignableFrom(clazz)) {
    return createPlayerInteractEvent(spongeEvent);
  }
 else   if (LivingDropsEvent.class.isAssignableFrom(clazz)) {
    return callLivingDropsEvent(spongeEvent);
  }
 else   if (ItemTossEvent.class.isAssignableFrom(clazz)) {
    return callItemTossEvent(spongeEvent);
  }
 else   if (PlayerLoggedInEvent.class.isAssignableFrom(clazz)) {
    return callPlayerLoggedInEvent(spongeEvent);
  }
 else   if (PlayerLoggedOutEvent.class.isAssignableFrom(clazz)) {
    return callPlayerLoggedOutEvent(spongeEvent);
  }
 else   if (PlayerRespawnEvent.class.isAssignableFrom(clazz)) {
    return callPlayerRespawnEvent(spongeEvent);
  }
 else   if (EntityTravelToDimensionEvent.class.isAssignableFrom(clazz)) {
    return callEntityTravelToDimensionEvent(spongeEvent);
  }
 else   if (EntityJoinWorldEvent.class.isAssignableFrom(clazz)) {
    return callEntityJoinWorldEvent(spongeEvent);
  }
 else   if (WorldEvent.Unload.class.isAssignableFrom(clazz)) {
    return callWorldUnloadEvent(spongeEvent);
  }
 else   if (WorldEvent.Load.class.isAssignableFrom(clazz)) {
    return callWorldLoadEvent(spongeEvent);
  }
 else   if (WorldEvent.Save.class.isAssignableFrom(clazz)) {
    return callWorldSaveEvent(spongeEvent);
  }
 else   if (ChunkEvent.Load.class.isAssignableFrom(clazz)) {
    return callChunkLoadEvent(spongeEvent);
  }
 else   if (ChunkEvent.Unload.class.isAssignableFrom(clazz)) {
    return callChunkUnloadEvent(spongeEvent);
  }
 else   if (net.minecraftforge.event.world.ExplosionEvent.Start.class.isAssignableFrom(clazz)) {
    return callExplosionEventPre(spongeEvent);
  }
 else   if (net.minecraftforge.event.world.ExplosionEvent.Detonate.class.isAssignableFrom(clazz)) {
    return callExplosionEventDetonate(spongeEvent);
  }
  return spongeEvent;
}

Fixed version (ground truth):
static Event callForgeEvent(Event spongeEvent,Class<? extends net.minecraftforge.fml.common.eventhandler.Event> clazz){
  if (EntityItemPickupEvent.class.isAssignableFrom(clazz)) {
    return callEntityItemPickupEvent(spongeEvent);
  }
 else   if (PlayerInteractEvent.EntityInteractSpecific.class.isAssignableFrom(clazz)) {
    return callEntityInteractEvent(spongeEvent);
  }
 else   if (PlayerInteractEvent.EntityInteract.class.isAssignableFrom(clazz)) {
    return callEntityInteractEvent(spongeEvent);
  }
 else   if (BlockEvent.NeighborNotifyEvent.class.isAssignableFrom(clazz)) {
    return callNeighborNotifyEvent(spongeEvent);
  }
 else   if (BlockEvent.PlaceEvent.class.isAssignableFrom(clazz)) {
    return callBlockPlaceEvent(spongeEvent);
  }
 else   if (PlayerInteractEvent.class.isAssignableFrom(clazz)) {
    return createPlayerInteractEvent(spongeEvent);
  }
 else   if (LivingDropsEvent.class.isAssignableFrom(clazz)) {
    return callForgeItemDropEvent(spongeEvent);
  }
 else   if (ItemTossEvent.class.isAssignableFrom(clazz)) {
    return callForgeItemDropEvent(spongeEvent);
  }
 else   if (PlayerLoggedInEvent.class.isAssignableFrom(clazz)) {
    return callPlayerLoggedInEvent(spongeEvent);
  }
 else   if (PlayerLoggedOutEvent.class.isAssignableFrom(clazz)) {
    return callPlayerLoggedOutEvent(spongeEvent);
  }
 else   if (PlayerRespawnEvent.class.isAssignableFrom(clazz)) {
    return callPlayerRespawnEvent(spongeEvent);
  }
 else   if (EntityTravelToDimensionEvent.class.isAssignableFrom(clazz)) {
    return callEntityTravelToDimensionEvent(spongeEvent);
  }
 else   if (EntityJoinWorldEvent.class.isAssignableFrom(clazz)) {
    return callEntityJoinWorldEvent(spongeEvent);
  }
 else   if (WorldEvent.Unload.class.isAssignableFrom(clazz)) {
    return callWorldUnloadEvent(spongeEvent);
  }
 else   if (WorldEvent.Load.class.isAssignableFrom(clazz)) {
    return callWorldLoadEvent(spongeEvent);
  }
 else   if (WorldEvent.Save.class.isAssignableFrom(clazz)) {
    return callWorldSaveEvent(spongeEvent);
  }
 else   if (ChunkEvent.Load.class.isAssignableFrom(clazz)) {
    return callChunkLoadEvent(spongeEvent);
  }
 else   if (ChunkEvent.Unload.class.isAssignableFrom(clazz)) {
    return callChunkUnloadEvent(spongeEvent);
  }
 else   if (net.minecraftforge.event.world.ExplosionEvent.Start.class.isAssignableFrom(clazz)) {
    return callExplosionEventPre(spongeEvent);
  }
 else   if (net.minecraftforge.event.world.ExplosionEvent.Detonate.class.isAssignableFrom(clazz)) {
    return callExplosionEventDetonate(spongeEvent);
  }
 else   if (ItemFishedEvent.class.isAssignableFrom(clazz)) {
    return callItemFishedEvent(spongeEvent);
  }
 else   if (LivingEntityUseItemEvent.class.isAssignableFrom(clazz)) {
    return callLivingUseItemEvent((UseItemStackEvent)spongeEvent);
  }
 else   if (AdvancementEvent.class.isAssignableFrom(clazz)) {
    return callAdvancementGrantEvent((org.spongepowered.api.event.advancement.AdvancementEvent.Grant)spongeEvent);
  }
  return spongeEvent;
}