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-rw-r--r--src/main/java/gregtech/api/util/GT_Recipe.java7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/main/java/gregtech/api/util/GT_Recipe.java b/src/main/java/gregtech/api/util/GT_Recipe.java
index 315d70a522..d970175560 100644
--- a/src/main/java/gregtech/api/util/GT_Recipe.java
+++ b/src/main/java/gregtech/api/util/GT_Recipe.java
@@ -23,6 +23,7 @@ import net.minecraftforge.fluids.FluidStack;
import net.minecraftforge.fluids.IFluidContainerItem;
import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
import static gregtech.api.enums.GT_Values.*;
@@ -388,7 +389,7 @@ public class GT_Recipe implements Comparable<GT_Recipe> {
if (mInputs.length > 0 && aInputs == null) return false;
- HashSet<Integer> isUsed = new HashSet<>();
+ ConcurrentHashMap<Integer, Boolean> isUsed = new ConcurrentHashMap<>();
for (ItemStack tStack : mInputs) {
ItemStack unified_tStack = GT_OreDictUnificator.get_nocopy(true, tStack);
@@ -398,8 +399,8 @@ public class GT_Recipe implements Comparable<GT_Recipe> {
int it = 0;
for (ItemStack aStack : aInputs) {
it ++;
- if (GT_OreDictUnificator.isInputStackEqual(aStack, unified_tStack) && !isUsed.contains(it)) {
- isUsed.add(it);
+ if (GT_OreDictUnificator.isInputStackEqual(aStack, unified_tStack) && !isUsed.containsKey(it)) {
+ isUsed.put(it, true);
if (GTppRecipeHelper) {//remove once the fix is out
if (GT_Utility.areStacksEqual(aStack, Ic2Items.FluidCell.copy(), true) || GT_Utility.areStacksEqual(aStack, ItemList.Tool_DataStick.get(1L), true) || GT_Utility.areStacksEqual(aStack, ItemList.Tool_DataOrb.get(1L), true)) {
if (!GT_Utility.areStacksEqual(aStack, tStack, false))