Fix some warnings.

RebornCore/src/main/java/reborncore/common/multiblock/MultiblockControllerBase.java

@@ -56,7 +56,6 @@ public abstract class MultiblockControllerBase {
 		Disassembled, Assembled, Paused
 	}
 
-	;
 	protected AssemblyState assemblyState;
 
 	public HashSet<IMultiblockPart> connectedParts;
@@ -398,7 +397,6 @@ public abstract class MultiblockControllerBase {
 	 * now is, assemble the machine. If the machine was whole, but no longer is,
 	 * disassemble the machine.
 	 *
-	 * @return
 	 */
 	public void checkIfMachineIsWhole() {
 		AssemblyState oldState = this.assemblyState;
@@ -494,15 +492,16 @@ public abstract class MultiblockControllerBase {
 	 * @param otherController The controller consuming this controller.
 	 */
 	private void _onAssimilated(MultiblockControllerBase otherController) {
-		if (referenceCoord != null) {
+		if (referenceCoord == null) { return; }
-			if (this.worldObj.isChunkLoaded(this.referenceCoord)) {
+
+		if (WorldUtils.isChunkLoaded(worldObj, referenceCoord)) {
 			BlockEntity te = this.worldObj.getBlockEntity(referenceCoord);
 			if (te instanceof IMultiblockPart) {
 				((IMultiblockPart) te).forfeitMultiblockSaveDelegate();
 			}
 		}
 		this.referenceCoord = null;
-		}
+
 		connectedParts.clear();
 	}
 
@@ -862,7 +861,7 @@ public abstract class MultiblockControllerBase {
 	 * Called when this machine may need to check for blocks that are no longer
 	 * physically connected to the reference coordinate.
 	 *
-	 * @return
+	 * @return Set with removed parts
 	 */
 	public Set<IMultiblockPart> checkForDisconnections() {
 		if (!this.shouldCheckForDisconnections) {
@@ -886,7 +885,7 @@ public abstract class MultiblockControllerBase {
 
 		for (IMultiblockPart part : connectedParts) {
 			pos = part.getWorldLocation();
-			if (!this.worldObj.isChunkLoaded(pos) || part.isInvalid()) {
+			if (!WorldUtils.isChunkLoaded(worldObj, pos) || part.isInvalid()) {
 				deadParts.add(part);
 				onDetachBlock(part);
 				continue;
@@ -927,7 +926,7 @@ public abstract class MultiblockControllerBase {
 		// coord's part
 		IMultiblockPart part;
 		LinkedList<IMultiblockPart> partsToCheck = new LinkedList<>();
-		IMultiblockPart[] nearbyParts = null;
+		IMultiblockPart[] nearbyParts;
 		int visitedParts = 0;
 
 		partsToCheck.add(referencePart);
@@ -992,7 +991,7 @@ public abstract class MultiblockControllerBase {
 		}
 
 		for (IMultiblockPart part : connectedParts) {
-			if (this.worldObj.isChunkLoaded(part.getWorldLocation())) {
+			if (WorldUtils.isChunkLoaded(worldObj, part.getWorldLocation())) {
 				onDetachBlock(part);
 			}
 		}
@@ -1017,7 +1016,7 @@ public abstract class MultiblockControllerBase {
 
 		for (IMultiblockPart part : connectedParts) {
 			pos = part.getWorldLocation();
-			if (part.isInvalid() || !this.worldObj.isChunkLoaded(pos)) {
+			if (part.isInvalid() || !WorldUtils.isChunkLoaded(worldObj, pos)) {
 				// Chunk is unloading, skip this coord to prevent chunk thrashing
 				continue;
 			}

RebornCore/src/main/java/reborncore/common/multiblock/MultiblockWorldRegistry.java

@@ -29,6 +29,7 @@ import net.minecraft.util.math.ChunkPos;
 import net.minecraft.world.World;
 import net.minecraft.world.chunk.Chunk;
 import reborncore.RebornCore;
+import reborncore.common.util.WorldUtils;
 
 import java.util.*;
 
@@ -140,7 +141,7 @@ public class MultiblockWorldRegistry {
 				// controller
 				for (IMultiblockPart orphan : orphansToProcess) {
 					coord = orphan.getWorldLocation();
-					if (!this.worldObj.isChunkLoaded(coord)) {
+					if (!WorldUtils.isChunkLoaded(worldObj, coord)) {
 						continue;
 					}
 
@@ -318,7 +319,7 @@ public class MultiblockWorldRegistry {
 	public void onPartAdded(IMultiblockPart part) {
 		BlockPos pos = part.getWorldLocation();
 
-		if (!this.worldObj.isChunkLoaded(pos)) {
+		if (!WorldUtils.isChunkLoaded(worldObj, pos)) {
 			// Part goes into the waiting-for-chunk-load list
 			Set<IMultiblockPart> partSet;
 			int chunkHash = new ChunkPos(pos).hashCode();

RebornCore/src/main/java/reborncore/common/network/ClientBoundPacketHandlers.java

@@ -46,6 +46,7 @@ import reborncore.common.blockentity.FluidConfiguration;
 import reborncore.common.blockentity.MachineBaseBlockEntity;
 import reborncore.common.blockentity.SlotConfiguration;
 import reborncore.common.chunkloading.ChunkLoaderManager;
+import reborncore.common.util.WorldUtils;
 
 import java.util.List;
 

RebornCore/src/main/java/reborncore/common/util/WorldUtils.java

@@ -29,6 +29,7 @@ import net.minecraft.entity.ItemEntity;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.ChunkSectionPos;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.world.World;
 
@@ -45,10 +46,18 @@ public class WorldUtils {
 		world.updateListeners(pos, state, state, 3);
 	}
 
-	public static boolean chunkExists(World world, int x, int z) {
+	/**
-		return world.isChunkLoaded(new BlockPos(x << 4, 64, z << 4));
+	 * Checks if chunk is loaded using proper chunk manager
+	 *
+	 * @param world World object
+	 * @param pos BlockPos X and Z coordinates to check
+	 * @return boolean True if chunk is loaded
+	 */
+	public static boolean isChunkLoaded(World world, BlockPos pos){
+		return world.getChunkManager().isChunkLoaded(ChunkSectionPos.getSectionCoord(pos.getX()), ChunkSectionPos.getSectionCoord(pos.getZ()));
 	}
 
+
 	public static void dropItem(ItemStack itemStack, World world, BlockPos pos) {
 		Random rand = new Random();
 

src/main/java/techreborn/init/TRContent.java

@@ -498,7 +498,7 @@ public class TRContent {
 
 		public static ItemConvertible[] getCasings() {
 			return Arrays.stream(MachineBlocks.values())
-					.map((Function<MachineBlocks, ItemConvertible>) machineBlocks -> () -> machineBlocks.casing.asItem())
+					.map((Function<MachineBlocks, ItemConvertible>) machineBlocks -> machineBlocks.casing::asItem)
 					.toArray(ItemConvertible[]::new);
 		}
 	}
@@ -855,8 +855,10 @@ public class TRContent {
 			if (blockEntity instanceof PowerAcceptorBlockEntity) {
 				powerAcceptor = (PowerAcceptorBlockEntity) blockEntity;
 			}
+			if (handler != null) {
 				handler.addSpeedMulti(TechRebornConfig.overclockerSpeed);
 				handler.addPowerMulti(TechRebornConfig.overclockerPower);
+			}
 			if (powerAcceptor != null) {
 				powerAcceptor.extraPowerInput += powerAcceptor.getMaxInput(EnergySide.UNKNOWN);
 				powerAcceptor.extraPowerStorage += powerAcceptor.getBaseMaxPower();