Make fields final if possible to ensure immutability

src/main/java/appeng/parts/automation/PartAnnihilationPlane.java

@@ -170,8 +170,8 @@ public class PartAnnihilationPlane extends PartBasicState implements IGridTickab
 	}
 
 	boolean breaking = false;
-	LinkedList<IAEItemStack> Buffer = new LinkedList<IAEItemStack>();
-	BaseActionSource mySrc = new MachineSource( this );
+	final LinkedList<IAEItemStack> Buffer = new LinkedList<IAEItemStack>();
+	final BaseActionSource mySrc = new MachineSource( this );
 
 	@Override
 	public void writeToNBT(NBTTagCompound data)

src/main/java/appeng/parts/automation/PartFormationPlane.java

@@ -66,8 +66,8 @@ public class PartFormationPlane extends PartUpgradeable implements ICellContaine
 	int priority = 0;
 	boolean wasActive = false;
 	boolean blocked = false;
-	MEInventoryHandler myHandler = new MEInventoryHandler( this, StorageChannel.ITEMS );
-	AppEngInternalAEInventory Config = new AppEngInternalAEInventory( this, 63 );
+	final MEInventoryHandler myHandler = new MEInventoryHandler( this, StorageChannel.ITEMS );
+	final AppEngInternalAEInventory Config = new AppEngInternalAEInventory( this, 63 );
 
 	public PartFormationPlane(ItemStack is) {
 		super( PartFormationPlane.class, is );

src/main/java/appeng/parts/automation/PartImportBus.java

@@ -37,7 +37,7 @@ import cpw.mods.fml.relauncher.SideOnly;
 public class PartImportBus extends PartSharedItemBus implements IGridTickable, IInventoryDestination
 {
 
-	BaseActionSource mySrc;
+	final BaseActionSource mySrc;
 	IMEInventory<IAEItemStack> destination = null;
 	IAEItemStack lastItemChecked = null;
 

src/main/java/appeng/parts/automation/PartLevelEmitter.java

@@ -63,7 +63,7 @@ public class PartLevelEmitter extends PartUpgradeable implements IEnergyWatcherH
 
 	final int FLAG_ON = 4;
 
-	AppEngInternalAEInventory config = new AppEngInternalAEInventory( this, 1 );
+	final AppEngInternalAEInventory config = new AppEngInternalAEInventory( this, 1 );
 
 	boolean prevState = false;
 

src/main/java/appeng/parts/automation/PartSharedItemBus.java

@@ -58,7 +58,7 @@ public abstract class PartSharedItemBus extends PartUpgradeable implements IGrid
 		config.readFromNBT( extra, "config" );
 	}
 
-	AppEngInternalAEInventory config = new AppEngInternalAEInventory( this, 9 );
+	final AppEngInternalAEInventory config = new AppEngInternalAEInventory( this, 9 );
 
 	int adaptorHash = 0;
 	InventoryAdaptor adaptor;

src/main/java/appeng/parts/automation/PartUpgradeable.java

@@ -17,8 +17,8 @@ import appeng.util.IConfigManagerHost;
 public class PartUpgradeable extends PartBasicState implements ISegmentedInventory, IAEAppEngInventory, IConfigManagerHost
 {
 
-	IConfigManager settings = new ConfigManager( this );
-	private UpgradeInventory upgrades = new UpgradeInventory( is, this, getUpgradeSlots() );
+	final IConfigManager settings = new ConfigManager( this );
+	private final UpgradeInventory upgrades = new UpgradeInventory( is, this, getUpgradeSlots() );
 
 	@Override
 	public int getInstalledUpgrades(Upgrades u)