fix crash with GTCEu 2.2 and higher

gradle.properties

@@ -4,7 +4,7 @@ aebuild=7
 aegroup=appeng
 aebasename=appliedenergistics2
 extended=extended_life
-extendedversion=v51j
+extendedversion=v51k
 #########################################################
 # Versions                                              #
 #########################################################

src/main/java/appeng/helpers/DualityInterface.java

@@ -98,9 +98,6 @@ import net.minecraftforge.items.wrapper.RangedWrapper;
 import javax.annotation.Nullable;
 import java.util.*;
 
-import static gregtech.api.block.machines.BlockMachine.getMetaTileEntity;
-
-
 public class DualityInterface implements IGridTickable, IStorageMonitorable, IInventoryDestination, IAEAppEngInventory, IConfigManagerHost, ICraftingProvider, IUpgradeableHost
 {
 	public static final int NUMBER_OF_STORAGE_SLOTS = 9;
@@ -1477,8 +1474,11 @@ public class DualityInterface implements IGridTickable, IStorageMonitorable, IIn
 
 				if( Loader.isModLoaded( "gregtech" ) && directedBlock instanceof BlockMachine )
 				{
-					MetaTileEntity metaTileEntity = getMetaTileEntity( hostWorld, targ );
-					return metaTileEntity.getMetaFullName();
+					MetaTileEntity metaTileEntity = Platform.getMetaTileEntity( directedTile.getWorld(), directedTile.getPos() );
+					if( metaTileEntity != null )
+					{
+						return metaTileEntity.getMetaFullName();
+					}
 				}
 
 				try
@@ -1506,7 +1506,7 @@ public class DualityInterface implements IGridTickable, IStorageMonitorable, IIn
 
 				if( what.getItem() != Items.AIR )
 				{
-					return what.getUnlocalizedName();
+					return what.getItem().getItemStackDisplayName( what );
 				}
 
 				final Item item = Item.getItemFromBlock( directedBlock );

src/main/java/appeng/util/Platform.java

@@ -19,6 +19,8 @@
 package appeng.util;
 
 
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.security.InvalidParameterException;
 import java.text.DecimalFormat;
 import java.util.ArrayList;
@@ -36,8 +38,10 @@ import com.google.common.base.Preconditions;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 
+import gregtech.api.block.machines.BlockMachine;
 import gregtech.api.items.IToolItem;
-import ic2.api.item.IC2Items;
+import gregtech.api.metatileentity.MetaTileEntity;
+import gregtech.api.util.GTUtility;
 import ic2.api.item.ICustomDamageItem;
 import net.minecraft.block.Block;
 import net.minecraft.block.state.IBlockState;
@@ -67,6 +71,7 @@ import net.minecraft.util.math.RayTraceResult;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.util.registry.RegistryNamespaced;
 import net.minecraft.util.text.translation.I18n;
+import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
 import net.minecraft.world.WorldServer;
 import net.minecraft.world.chunk.Chunk;
@@ -77,6 +82,7 @@ import net.minecraftforge.fml.common.FMLCommonHandler;
 import net.minecraftforge.fml.common.Loader;
 import net.minecraftforge.fml.common.ModContainer;
 import net.minecraftforge.fml.common.Optional;
+import net.minecraftforge.fml.relauncher.ReflectionHelper;
 import net.minecraftforge.fml.relauncher.Side;
 import net.minecraftforge.fml.relauncher.SideOnly;
 import net.minecraftforge.oredict.OreDictionary;
@@ -158,6 +164,7 @@ public class Platform
 
 	private static final ItemComparisonHelper ITEM_COMPARISON_HELPER = new ItemComparisonHelper();
 	private static final P2PHelper P2P_HELPER = new P2PHelper();
+	private static Method reflectGTgetMTE;
 
 	public static ItemComparisonHelper itemComparisons()
 	{
@@ -1681,11 +1688,39 @@ public class Platform
 		return isPurified;
 	}
 
+	//consider methods below moving to a compability class
 	public static boolean isGTDamageableItem( Item item )
 	{
 		return ( isModLoaded( "gregtech" ) && item instanceof IToolItem );
 	}
 
+	public static MetaTileEntity getMetaTileEntity( IBlockAccess world, BlockPos pos )
+	{
+		if( reflectGTgetMTE == null )
+		{
+			try
+			{
+				reflectGTgetMTE = ReflectionHelper.findMethod( BlockMachine.class, "getMetaTileEntity", null, IBlockAccess.class, BlockPos.class );
+			}
+			catch( ReflectionHelper.UnableToFindMethodException e )
+			{
+				reflectGTgetMTE = ReflectionHelper.findMethod( GTUtility.class, "getMetaTileEntity", null, IBlockAccess.class, BlockPos.class );
+			}
+		}
+		else
+		{
+			try
+			{
+				return (MetaTileEntity) reflectGTgetMTE.invoke( reflectGTgetMTE, world, pos );
+			}
+			catch( IllegalAccessException | InvocationTargetException e )
+			{
+				e.printStackTrace();
+			}
+		}
+		return null;
+	}
+
 	public static boolean isIC2DamageableItem( Item item )
 	{
 		return ( isModLoaded( "IC2" ) && item instanceof ICustomDamageItem );