convert several files to Java 8

There may be additional files that require changing

common/src/main/java/com/seibel/lod/common/wrappers/McObjectConverter.java

@@ -59,22 +59,41 @@ public class McObjectConverter
     	ELodDirection[] lodDirs = ELodDirection.values();
     	directions = new Direction[lodDirs.length];
     	lodDirections = new ELodDirection[lodDirs.length];
-    	for (ELodDirection lodDir : lodDirs) {
-            Direction dir = switch (lodDir.name().toUpperCase()) {
-                case "DOWN" -> Direction.DOWN;
-                case "UP" -> Direction.UP;
-                case "NORTH" -> Direction.NORTH;
-                case "SOUTH" -> Direction.SOUTH;
-                case "WEST" -> Direction.WEST;
-                case "EAST" -> Direction.EAST;
-                default -> null;
-            };
-            if (dir == null) {
-                throw new IllegalArgumentException("Invalid direction on init mapping: " + lodDir);
-            }
-            directions[lodDir.ordinal()] = dir;
-    		lodDirections[dir.ordinal()] = lodDir;
-    	}
+		for (ELodDirection lodDir : lodDirs)
+		{
+			Direction dir;
+			switch (lodDir.name().toUpperCase())
+			{
+				case "DOWN":
+					dir = Direction.DOWN;
+					break;
+				case "UP":
+					dir = Direction.UP;
+					break;
+				case "NORTH":
+					dir = Direction.NORTH;
+					break;
+				case "SOUTH":
+					dir = Direction.SOUTH;
+					break;
+				case "WEST":
+					dir = Direction.WEST;
+					break;
+				case "EAST":
+					dir = Direction.EAST;
+					break;
+				default:
+					dir = null;
+					break;
+			}
+			
+			if (dir == null)
+			{
+				throw new IllegalArgumentException("Invalid direction on init mapping: " + lodDir);
+			}
+			directions[lodDir.ordinal()] = dir;
+			lodDirections[dir.ordinal()] = lodDir;
+		}
     }
 
     public static BlockPos Convert(DhBlockPos wrappedPos) {

common/src/main/java/com/seibel/lod/common/wrappers/WrapperFactory.java

@@ -97,16 +97,18 @@ public class WrapperFactory implements IWrapperFactory
 		else if (objectArray.length == 2)
 		{
 			// chunk
-			if (!(objectArray[0] instanceof ChunkAccess chunk))
+			if (!(objectArray[0] instanceof ChunkAccess))
 			{
 				throw new ClassCastException(createChunkWrapperErrorMessage(objectArray));
 			}
+			ChunkAccess chunk = (ChunkAccess) objectArray[0];
 			
 			// light source
-			if (!(objectArray[1] instanceof LevelReader lightSource))
+			if (!(objectArray[1] instanceof LevelReader))
 			{
 				throw new ClassCastException(createChunkWrapperErrorMessage(objectArray));
 			}
+			LevelReader lightSource = (LevelReader) objectArray[1];
 			
 			
 			return new ChunkWrapper(chunk, lightSource, /*A DH wrapped level isn't necessary*/null);