Only compute if absent/present if compute is not needed (locking opts)

src/main/java/com/volmit/iris/core/commands/CommandStudio.java

@@ -880,24 +880,8 @@ public class CommandStudio implements DecreeExecutor {
                 }
 
                 String n3 = nn3;
-
+                objects.computeIfAbsent(n1, (k1) -> new KMap<>())
-                objects.compute(n1, (k1, v1) ->
+                        .computeIfAbsent(n2, (k) -> new KList<>()).addIfMissing(n3);
-                {
-                    //noinspection ReplaceNullCheck
-                    if (v1 == null) {
-                        return new KMap<>();
-                    }
-
-                    return v1;
-                }).compute(n2, (k, v) ->
-                {
-                    if (v == null) {
-                        return new KList<String>().qaddIfMissing(n3);
-                    }
-
-                    v.addIfMissing(n3);
-                    return v;
-                });
             }
         }
     }

src/main/java/com/volmit/iris/core/loader/IrisData.java

@@ -104,7 +104,7 @@ public class IrisData implements ExclusionStrategy, TypeAdapterFactory {
     }
 
     public static IrisData get(File dataFolder) {
-        return dataLoaders.compute(dataFolder, (k, v) -> v == null ? new IrisData(dataFolder) : v);
+        return dataLoaders.computeIfAbsent(dataFolder, IrisData::new);
     }
 
     public static void dereference() {

src/main/java/com/volmit/iris/core/loader/ResourceLoader.java

@@ -84,7 +84,7 @@ public class ResourceLoader<T extends IrisRegistrant> {
         o.put("fileMatch", new JSONArray(fm.toArray()));
         o.put("url", "./.iris/schema/" + getFolderName() + "-schema.json");
         File a = new File(getManager().getDataFolder(), ".iris/schema/" + getFolderName() + "-schema.json");
-        J.attemptAsync(() -> IO.writeAll(a, new SchemaBuilder(objectClass, manager).compute().toString(4)));
+        J.attemptAsync(() -> IO.writeAll(a, new SchemaBuilder(objectClass, manager).construct().toString(4)));
 
         return o;
     }

src/main/java/com/volmit/iris/core/project/IrisProject.java

@@ -356,7 +356,7 @@ public class IrisProject {
                 File a = new File(dm.getDataFolder(), ".iris/schema/snippet/" + snipType + "-schema.json");
                 J.attemptAsync(() -> {
                     try {
-                        IO.writeAll(a, new SchemaBuilder(i, dm).compute().toString(4));
+                        IO.writeAll(a, new SchemaBuilder(i, dm).construct().toString(4));
                     } catch (Throwable e) {
                         e.printStackTrace();
                     }

src/main/java/com/volmit/iris/core/project/SchemaBuilder.java

@@ -87,7 +87,7 @@ public class SchemaBuilder {
         return a;
     }
 
-    public JSONObject compute() {
+    public JSONObject construct() {
         JSONObject schema = new JSONObject();
         schema.put("$schema", "http://json-schema.org/draft-07/schema#");
         schema.put("$id", "http://volmit.com/iris-schema/" + root.getSimpleName().toLowerCase() + ".json");

src/main/java/com/volmit/iris/engine/IrisEngineMantle.java

@@ -167,11 +167,7 @@ public class IrisEngineMantle implements EngineMantle {
             for (String i : objects) {
                 e.queue(() -> {
                     try {
-                        BlockVector bv = sizeCache.compute(i, (k, v) -> {
+                        BlockVector bv = sizeCache.computeIfAbsent(i, (k) -> {
-                            if (v != null) {
-                                return v;
-                            }
-
                             try {
                                 return IrisObject.sampleSize(getData().getObjectLoader().findFile(i));
                             } catch (IOException ex) {
@@ -207,11 +203,7 @@ public class IrisEngineMantle implements EngineMantle {
                 for (String j : entry.getValue()) {
                     e.queue(() -> {
                         try {
-                            BlockVector bv = sizeCache.compute(j, (k, v) -> {
+                            BlockVector bv = sizeCache.computeIfAbsent(j, (k) -> {
-                                if (v != null) {
-                                    return v;
-                                }
-
                                 try {
                                     return IrisObject.sampleSize(getData().getObjectLoader().findFile(j));
                                 } catch (IOException ioException) {

src/main/java/com/volmit/iris/engine/jigsaw/PlannedStructure.java

@@ -329,12 +329,6 @@ public class PlannedStructure {
     public IrisObject rotated(IrisJigsawPiece piece, IrisObjectRotation rotation) {
         String key = piece.getObject() + "-" + rotation.hashCode();
 
-        return objectRotationCache.compute(key, (k, v) -> {
+        return objectRotationCache.computeIfAbsent(key, (k) -> rotation.rotateCopy(data.getObjectLoader().load(piece.getObject())));
-            if (v == null) {
-                return rotation.rotateCopy(data.getObjectLoader().load(piece.getObject()));
-            }
-
-            return v;
-        });
     }
 }

src/main/java/com/volmit/iris/engine/modifier/IrisCarveModifier.java

@@ -84,7 +84,7 @@ public class IrisCarveModifier extends EngineAssignedModifier<BlockData> {
                 return;
             }
 
-            positions.compute(Cache.key(rx, rz), (k, v) -> Objects.requireNonNullElseGet(v, (Supplier<KList<Integer>>) KList::new).qadd(yy));
+            positions.computeIfAbsent(Cache.key(rx, rz), (k) -> new KList<>()).qadd(yy);
 
             if (rz < 15 && mantle.get(xx, yy, zz + 1, MatterCavern.class) == null) {
                 walls.put(new IrisPosition(rx, yy, rz + 1), c);

src/main/java/com/volmit/iris/engine/object/IrisBiomeCustom.java

@@ -144,7 +144,7 @@ public class IrisBiomeCustom {
             KMap<IrisBiomeCustomSpawnType, JSONArray> groups = new KMap<>();
 
             for (IrisBiomeCustomSpawn i : getSpawns()) {
-                JSONArray g = groups.compute(i.getGroup(), (k, v) -> v != null ? v : new JSONArray());
+                JSONArray g = groups.computeIfAbsent(i.getGroup(), (k) -> new JSONArray());
                 JSONObject o = new JSONObject();
                 o.put("type", "minecraft:" + i.getType().name().toLowerCase());
                 o.put("weight", i.getWeight());

src/main/java/com/volmit/iris/engine/object/IrisObjectScale.java

@@ -81,11 +81,7 @@ public class IrisObjectScale {
             return origin;
         }
 
-        return cache.compute(origin, (k, v) -> {
+        return cache.computeIfAbsent(origin, (k) -> {
-            if (v != null) {
-                return v;
-            }
-
             KList<IrisObject> c = new KList<>();
             for (double i = minimumScale; i < maximumScale; i += (maximumScale - minimumScale) / (double) (Math.min(variations, 32))) {
                 c.add(origin.scaled(i, getInterpolation()));

src/main/java/com/volmit/iris/util/interpolation/IrisInterpolation.java

@@ -892,7 +892,7 @@ public class IrisInterpolation {
                 int fj = j;
                 for (k = 0; k < d; k++) {
                     int fk = k;
-                    hunk.set(i, j, k, cache.compute((k * w * h) + (j * w) + i, (p, v)
+                    hunk.set(i, j, k, cache.computeIfAbsent((k * w * h) + (j * w) + i, (p)
                             -> getNoise3D(method, fi + xo, fj + yo, fk + zo,
                             radX, radY, radZ, n)));
                 }

src/main/java/com/volmit/iris/util/matter/slices/EntityMatter.java

@@ -103,8 +103,8 @@ public class EntityMatter extends RawMatter<MatterEntityGroup> {
         entityCache = new KMap<>();
 
         for (Entity i : ((World) w).getNearbyEntities(new BoundingBox(x, y, z, x + getWidth(), y + getHeight(), z + getHeight()))) {
-            entityCache.compute(new IrisPosition(i.getLocation()),
+            entityCache.computeIfAbsent(new IrisPosition(i.getLocation()),
-                    (k, v) -> v == null ? new KList<>() : v).add(i);
+                    k -> new KList<>()).add(i);
         }
 
         for (IrisPosition i : entityCache.keySet()) {

src/main/java/com/volmit/iris/util/parallel/HyperLock.java

@@ -32,8 +32,8 @@ import java.util.function.Supplier;
 
 public class HyperLock {
     private final ConcurrentLinkedHashMap<Long, ReentrantLock> locks;
-    private final BiFunction<? super Long, ? super ReentrantLock, ? extends ReentrantLock> accessor;
     private boolean enabled = true;
+    private boolean fair = false;
 
     public HyperLock() {
         this(1024, false);
@@ -44,6 +44,7 @@ public class HyperLock {
     }
 
     public HyperLock(int capacity, boolean fair) {
+        this.fair = fair;
         locks = new ConcurrentLinkedHashMap.Builder<Long, ReentrantLock>()
                 .initialCapacity(capacity)
                 .maximumWeightedCapacity(capacity)
@@ -54,7 +55,6 @@ public class HyperLock {
                 })
                 .concurrencyLevel(32)
                 .build();
-        accessor = (k, v) -> v == null ? new ReentrantLock(fair) : v;
     }
 
     public void with(int x, int z, Runnable r) {
@@ -123,7 +123,7 @@ public class HyperLock {
     }
 
     private ReentrantLock getLock(int x, int z) {
-        return locks.compute(Cache.key(x, z), accessor);
+        return locks.computeIfAbsent(Cache.key(x, z), k -> new ReentrantLock(fair));
     }
 
     public void lock(int x, int z) {

src/main/java/com/volmit/iris/util/plugin/VolmitSender.java

@@ -499,11 +499,7 @@ public class VolmitSender implements CommandSender {
 
     public void sendDecreeHelpNode(VirtualDecreeCommand i) {
         if (isPlayer() || s instanceof CommandDummy) {
-            sendMessageRaw(helpCache.compute(i.getPath(), (k, v) -> {
+            sendMessageRaw(helpCache.computeIfAbsent(i.getPath(), (k) -> {
-                if (v != null) {
-                    return v;
-                }
-
                 String newline = "<reset>\n";
 
                 /// Command

src/main/java/com/volmit/iris/util/scheduling/GroupedExecutor.java

@@ -85,7 +85,6 @@ public class GroupedExecutor {
 
     public void queue(String q, NastyRunnable r) {
         mirror.compute(q, (k, v) -> k == null || v == null ? 1 : v + 1);
-
         service.execute(() ->
         {
             try {
@@ -95,7 +94,7 @@ public class GroupedExecutor {
                 e.printStackTrace();
             }
 
-            mirror.compute(q, (k, v) -> v - 1);
+            mirror.computeIfPresent(q, (k, v) -> v - 1);
         });
     }
 

src/main/java/com/volmit/iris/util/stream/convert/CachedConversionStream.java

@@ -58,11 +58,11 @@ public class CachedConversionStream<T, V> extends BasicLayer implements Procedur
 
     @Override
     public V get(double x, double z) {
-        return cache.compute(stream.get(x, z), (k, v) -> v != null ? v : converter.apply(k));
+        return cache.computeIfAbsent(stream.get(x, z), converter);
     }
 
     @Override
     public V get(double x, double y, double z) {
-        return cache.compute(stream.get(x, y, z), (k, v) -> v != null ? v : converter.apply(k));
+        return cache.computeIfAbsent(stream.get(x, y, z), converter);
     }
 }

src/main/java/com/volmit/iris/util/stream/utility/CachedStream3D.java

@@ -49,11 +49,11 @@ public class CachedStream3D<T> extends BasicStream<T> implements ProceduralStrea
 
     @Override
     public T get(double x, double z) {
-        return cache.compute(new BlockPosition((int) x, -1, (int) z), (k, v) -> v != null ? v : stream.get((int) x, (int) z));
+        return cache.computeIfAbsent(new BlockPosition((int) x, -1, (int) z), (k) -> stream.get((int) x, (int) z));
     }
 
     @Override
     public T get(double x, double y, double z) {
-        return cache.compute(new BlockPosition((int) x, (int) y, (int) z), (k, v) -> v != null ? v : stream.get((int) x, (int) y, (int) z));
+        return cache.computeIfAbsent(new BlockPosition((int) x, (int) y, (int) z), (k) -> stream.get((int) x, (int) y, (int) z));
     }
 }