Program: 30789
Project: 30789
Buggy source:
public void PostInit(FMLPostInitializationEvent event){
  PlayerMessages.values();
  GuiText.values();
  Api.instance.partHelper.initFMPSupport();
  ((BlockCableBus)AEApi.instance().blocks().blockMultiPart.block()).setupTile();
  Upgrades.SPEED.registerItem(AEApi.instance().blocks().blockIOPort.stack(1),3);
  Upgrades.REDSTONE.registerItem(AEApi.instance().blocks().blockIOPort.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().parts().partLevelEmitter.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().parts().partImportBus.stack(1),1);
  Upgrades.REDSTONE.registerItem(AEApi.instance().parts().partImportBus.stack(1),1);
  Upgrades.CAPACITY.registerItem(AEApi.instance().parts().partImportBus.stack(1),2);
  Upgrades.SPEED.registerItem(AEApi.instance().parts().partImportBus.stack(1),4);
  Upgrades.FUZZY.registerItem(AEApi.instance().parts().partExportBus.stack(1),1);
  Upgrades.REDSTONE.registerItem(AEApi.instance().parts().partExportBus.stack(1),1);
  Upgrades.CAPACITY.registerItem(AEApi.instance().parts().partExportBus.stack(1),2);
  Upgrades.SPEED.registerItem(AEApi.instance().parts().partExportBus.stack(1),4);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemCell1k.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemCell1k.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemCell4k.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemCell4k.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemCell16k.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemCell16k.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemCell64k.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemCell64k.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemPortableCell.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemPortableCell.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().parts().partStorageBus.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().parts().partStorageBus.stack(1),1);
  Upgrades.CAPACITY.registerItem(AEApi.instance().parts().partStorageBus.stack(1),5);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemMassCannon.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemMassCannon.stack(1),1);
  Upgrades.SPEED.registerItem(AEApi.instance().items().itemMassCannon.stack(1),4);
  AEApi.instance().registries().wireless().registerWirelessHandler((IWirelessTermHandler)AEApi.instance().items().itemWirelessTerminal.item());
  if (AEConfig.instance.isFeatureEnabled(AEFeature.ChestLoot)) {
    ChestGenHooks d=ChestGenHooks.getInfo(ChestGenHooks.MINESHAFT_CORRIDOR);
    d.addItem(new WeightedRandomChestContent(AEApi.instance().materials().materialCertusQuartzCrystal.stack(1),1,4,2));
    d.addItem(new WeightedRandomChestContent(AEApi.instance().materials().materialCertusQuartzDust.stack(1),1,4,2));
  }
  if (AEConfig.instance.isFeatureEnabled(AEFeature.VillagerTrading))   VillagerRegistry.instance().registerVillageTradeHandler(3,new AETrading());
  if (AEConfig.instance.isFeatureEnabled(AEFeature.CertusQuartzWorldGen))   GameRegistry.registerWorldGenerator(new QuartzWorldGen(),0);
  recipeHandler.registerHandlers();
}

Fixed version (ground truth):
public void PostInit(FMLPostInitializationEvent event){
  PlayerMessages.values();
  GuiText.values();
  Api.instance.partHelper.initFMPSupport();
  ((BlockCableBus)AEApi.instance().blocks().blockMultiPart.block()).setupTile();
  Upgrades.SPEED.registerItem(AEApi.instance().blocks().blockIOPort.stack(1),3);
  Upgrades.REDSTONE.registerItem(AEApi.instance().blocks().blockIOPort.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().parts().partLevelEmitter.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().parts().partImportBus.stack(1),1);
  Upgrades.REDSTONE.registerItem(AEApi.instance().parts().partImportBus.stack(1),1);
  Upgrades.CAPACITY.registerItem(AEApi.instance().parts().partImportBus.stack(1),2);
  Upgrades.SPEED.registerItem(AEApi.instance().parts().partImportBus.stack(1),4);
  Upgrades.FUZZY.registerItem(AEApi.instance().parts().partExportBus.stack(1),1);
  Upgrades.REDSTONE.registerItem(AEApi.instance().parts().partExportBus.stack(1),1);
  Upgrades.CAPACITY.registerItem(AEApi.instance().parts().partExportBus.stack(1),2);
  Upgrades.SPEED.registerItem(AEApi.instance().parts().partExportBus.stack(1),4);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemCell1k.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemCell1k.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemCell4k.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemCell4k.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemCell16k.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemCell16k.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemCell64k.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemCell64k.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemPortableCell.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemPortableCell.stack(1),1);
  Upgrades.FUZZY.registerItem(AEApi.instance().parts().partStorageBus.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().parts().partStorageBus.stack(1),1);
  Upgrades.CAPACITY.registerItem(AEApi.instance().parts().partStorageBus.stack(1),5);
  Upgrades.FUZZY.registerItem(AEApi.instance().parts().partFormationPlane.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().parts().partFormationPlane.stack(1),1);
  Upgrades.CAPACITY.registerItem(AEApi.instance().parts().partFormationPlane.stack(1),5);
  Upgrades.FUZZY.registerItem(AEApi.instance().items().itemMassCannon.stack(1),1);
  Upgrades.INVERTER.registerItem(AEApi.instance().items().itemMassCannon.stack(1),1);
  Upgrades.SPEED.registerItem(AEApi.instance().items().itemMassCannon.stack(1),4);
  AEApi.instance().registries().wireless().registerWirelessHandler((IWirelessTermHandler)AEApi.instance().items().itemWirelessTerminal.item());
  if (AEConfig.instance.isFeatureEnabled(AEFeature.ChestLoot)) {
    ChestGenHooks d=ChestGenHooks.getInfo(ChestGenHooks.MINESHAFT_CORRIDOR);
    d.addItem(new WeightedRandomChestContent(AEApi.instance().materials().materialCertusQuartzCrystal.stack(1),1,4,2));
    d.addItem(new WeightedRandomChestContent(AEApi.instance().materials().materialCertusQuartzDust.stack(1),1,4,2));
  }
  if (AEConfig.instance.isFeatureEnabled(AEFeature.VillagerTrading))   VillagerRegistry.instance().registerVillageTradeHandler(3,new AETrading());
  if (AEConfig.instance.isFeatureEnabled(AEFeature.CertusQuartzWorldGen))   GameRegistry.registerWorldGenerator(new QuartzWorldGen(),0);
  recipeHandler.registerHandlers();
}