Ensure that the iterable won't be iterated twice

Author: me4502

worldedit-bukkit/adapters/adapter-1.19.4/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/v1_19_R3/PaperweightAdapter.java

@@ -23,7 +23,6 @@
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 import com.google.common.util.concurrent.Futures;
@@ -176,6 +175,7 @@
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
@@ -975,7 +975,7 @@ public boolean generateStructure(StructureType type, World world, EditSession se
     public void sendBiomeUpdates(World world, Iterable<BlockVector2> chunks) {
         ServerLevel originalWorld = ((CraftWorld) world).getHandle();
 
-        List<ChunkAccess> nativeChunks = Lists.newArrayListWithCapacity(Iterables.size(chunks));
+        List<ChunkAccess> nativeChunks = chunks instanceof Collection<BlockVector2> chunkCollection ? Lists.newArrayListWithCapacity(chunkCollection.size()) : Lists.newArrayList();
         for (BlockVector2 chunk : chunks) {
             nativeChunks.add(originalWorld.getChunk(chunk.getBlockX(), chunk.getBlockZ(), ChunkStatus.BIOMES, false));
         }

worldedit-bukkit/adapters/adapter-1.20.2/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/v1_20_R2/PaperweightAdapter.java

@@ -23,7 +23,6 @@
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 import com.google.common.util.concurrent.Futures;
@@ -176,6 +175,7 @@
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
@@ -976,7 +976,7 @@ public boolean generateStructure(StructureType type, World world, EditSession se
     public void sendBiomeUpdates(World world, Iterable<BlockVector2> chunks) {
         ServerLevel originalWorld = ((CraftWorld) world).getHandle();
 
-        List<ChunkAccess> nativeChunks = Lists.newArrayListWithCapacity(Iterables.size(chunks));
+        List<ChunkAccess> nativeChunks = chunks instanceof Collection<BlockVector2> chunkCollection ? Lists.newArrayListWithCapacity(chunkCollection.size()) : Lists.newArrayList();
         for (BlockVector2 chunk : chunks) {
             nativeChunks.add(originalWorld.getChunk(chunk.getBlockX(), chunk.getBlockZ(), ChunkStatus.BIOMES, false));
         }

worldedit-bukkit/adapters/adapter-1.20/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/v1_20_R1/PaperweightAdapter.java

@@ -23,7 +23,6 @@
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 import com.google.common.util.concurrent.Futures;
@@ -176,6 +175,7 @@
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
@@ -976,7 +976,7 @@ public boolean generateStructure(StructureType type, World world, EditSession se
     public void sendBiomeUpdates(World world, Iterable<BlockVector2> chunks) {
         ServerLevel originalWorld = ((CraftWorld) world).getHandle();
 
-        List<ChunkAccess> nativeChunks = Lists.newArrayListWithCapacity(Iterables.size(chunks));
+        List<ChunkAccess> nativeChunks = chunks instanceof Collection<BlockVector2> chunkCollection ? Lists.newArrayListWithCapacity(chunkCollection.size()) : Lists.newArrayList();
         for (BlockVector2 chunk : chunks) {
             nativeChunks.add(originalWorld.getChunk(chunk.getBlockX(), chunk.getBlockZ(), ChunkStatus.BIOMES, false));
         }

worldedit-fabric/src/main/java/com/sk89q/worldedit/fabric/FabricWorld.java

@@ -23,7 +23,6 @@
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 import com.google.common.collect.Streams;
@@ -117,6 +116,7 @@
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
@@ -530,7 +530,7 @@ public void fixAfterFastMode(Iterable<BlockVector2> chunks) {
 
     @Override
     public void sendBiomeUpdates(Iterable<BlockVector2> chunks) {
-        List<ChunkAccess> nativeChunks = Lists.newArrayListWithCapacity(Iterables.size(chunks));
+        List<ChunkAccess> nativeChunks = chunks instanceof Collection<BlockVector2> chunkCollection ? Lists.newArrayListWithCapacity(chunkCollection.size()) : Lists.newArrayList();
         for (BlockVector2 chunk : chunks) {
             nativeChunks.add(getWorld().getChunk(chunk.getBlockX(), chunk.getBlockZ(), ChunkStatus.BIOMES, false));
         }

worldedit-forge/src/main/java/com/sk89q/worldedit/forge/ForgeWorld.java

@@ -23,7 +23,6 @@
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 import com.google.common.collect.Streams;
@@ -115,6 +114,7 @@
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -512,7 +512,7 @@ public void fixAfterFastMode(Iterable<BlockVector2> chunks) {
 
     @Override
     public void sendBiomeUpdates(Iterable<BlockVector2> chunks) {
-        List<ChunkAccess> nativeChunks = Lists.newArrayListWithCapacity(Iterables.size(chunks));
+        List<ChunkAccess> nativeChunks = chunks instanceof Collection<BlockVector2> chunkCollection ? Lists.newArrayListWithCapacity(chunkCollection.size()) : Lists.newArrayList();
         for (BlockVector2 chunk : chunks) {
             nativeChunks.add(getWorld().getChunk(chunk.getBlockX(), chunk.getBlockZ(), ChunkStatus.BIOMES, false));
         }