First few files and initial rebuild

paper-server/patches/sources/com/mojang/brigadier/exceptions/CommandSyntaxException.java.patch

@@ -1,6 +1,6 @@
 --- a/com/mojang/brigadier/exceptions/CommandSyntaxException.java
 +++ b/com/mojang/brigadier/exceptions/CommandSyntaxException.java
-@@ -5,7 +5,7 @@
+@@ -5,7 +_,7 @@
  
  import com.mojang.brigadier.Message;
  
@@ -9,7 +9,7 @@
      public static final int CONTEXT_AMOUNT = 10;
      public static boolean ENABLE_COMMAND_STACK_TRACES = true;
      public static BuiltInExceptionProvider BUILT_IN_EXCEPTIONS = new BuiltInExceptions();
-@@ -73,4 +73,11 @@
+@@ -73,4 +_,11 @@
      public int getCursor() {
          return cursor;
      }

paper-server/patches/sources/com/mojang/datafixers/DataFixerBuilder.java.patch

@@ -0,0 +1,21 @@
+--- a/com/mojang/datafixers/DataFixerBuilder.java
++++ b/com/mojang/datafixers/DataFixerBuilder.java
+@@ -29,8 +_,10 @@
+     private final Int2ObjectSortedMap<Schema> schemas = new Int2ObjectAVLTreeMap<>();
+     private final List<DataFix> globalList = new ArrayList<>();
+     private final IntSortedSet fixerVersions = new IntAVLTreeSet();
++    private final int minDataFixPrecacheVersion; // Paper - Perf: Cache DataFixerUpper Rewrite Rules on demand
+ 
+     public DataFixerBuilder(final int dataVersion) {
++        minDataFixPrecacheVersion = Integer.getInteger("Paper.minPrecachedDatafixVersion", dataVersion+1) * 10; // Paper - Perf: default to precache nothing - mojang stores versions * 10 to allow for 'sub versions'
+         this.dataVersion = dataVersion;
+     }
+ 
+@@ -88,6 +_,7 @@
+             final IntIterator iterator = fixerUpper.fixerVersions().iterator();
+             while (iterator.hasNext()) {
+                 final int versionKey = iterator.nextInt();
++                if (versionKey < minDataFixPrecacheVersion) continue; // Paper - Perf: Cache DataFixerUpper Rewrite Rules on demand
+                 final Schema schema = schemas.get(versionKey);
+                 for (final String typeName : schema.types()) {
+                     if (!requiredTypeNames.contains(typeName)) {

paper-server/patches/sources/com/mojang/datafixers/util/Either.java.patch

@@ -0,0 +1,38 @@
+--- a/com/mojang/datafixers/util/Either.java
++++ b/com/mojang/datafixers/util/Either.java
+@@ -22,7 +_,7 @@
+     }
+ 
+     private static final class Left<L, R> extends Either<L, R> {
+-        private final L value;
++        private final L value; private Optional<L> valueOptional; // Paper - Perf: Reduce Either Optional allocation
+ 
+         public Left(final L value) {
+             this.value = value;
+@@ -51,7 +_,7 @@
+ 
+         @Override
+         public Optional<L> left() {
+-            return Optional.of(value);
++            return this.valueOptional == null ? this.valueOptional = Optional.of(this.value) : this.valueOptional; // Paper - Perf: Reduce Either Optional allocation
+         }
+ 
+         @Override
+@@ -83,7 +_,7 @@
+     }
+ 
+     private static final class Right<L, R> extends Either<L, R> {
+-        private final R value;
++        private final R value; private Optional<R> valueOptional; // Paper - Perf: Reduce Either Optional allocation
+ 
+         public Right(final R value) {
+             this.value = value;
+@@ -117,7 +_,7 @@
+ 
+         @Override
+         public Optional<R> right() {
+-            return Optional.of(value);
++            return this.valueOptional == null ? this.valueOptional = Optional.of(this.value) : this.valueOptional; // Paper - Perf: Reduce Either Optional allocation
+         }
+ 
+         @Override

paper-server/patches/sources/com/mojang/logging/LogUtils.java.patch

@@ -0,0 +1,12 @@
+--- a/com/mojang/logging/LogUtils.java
++++ b/com/mojang/logging/LogUtils.java
+@@ -61,4 +_,9 @@
+     public static Logger getLogger() {
+         return LoggerFactory.getLogger(STACK_WALKER.getCallerClass());
+     }
++    // Paper start
++    public static Logger getClassLogger() {
++        return LoggerFactory.getLogger(STACK_WALKER.getCallerClass().getSimpleName());
++    }
++    // Paper end
+ }

paper-server/patches/sources/com/mojang/math/OctahedralGroup.java.patch

@@ -0,0 +1,30 @@
+--- a/com/mojang/math/OctahedralGroup.java
++++ b/com/mojang/math/OctahedralGroup.java
+@@ -111,6 +_,7 @@
+         this.permutation = permutation;
+         this.transformation = new Matrix3f().scaling(invertX ? -1.0F : 1.0F, invertY ? -1.0F : 1.0F, invertZ ? -1.0F : 1.0F);
+         this.transformation.mul(permutation.transformation());
++        this.initializeRotationDirections(); // Paper - Avoid Lazy Initialization for Enum Fields
+     }
+ 
+     private BooleanList packInversions() {
+@@ -139,7 +_,7 @@
+         return this.name;
+     }
+ 
+-    public Direction rotate(Direction direction) {
++    public void initializeRotationDirections() { // Paper - Avoid Lazy Initialization for Enum Fields
+         if (this.rotatedDirections == null) {
+             this.rotatedDirections = Maps.newEnumMap(Direction.class);
+             Direction.Axis[] axiss = Direction.Axis.values();
+@@ -154,6 +_,10 @@
+             }
+         }
+ 
++    // Paper start - Avoid Lazy Initialization for Enum Fields
++    }
++    public Direction rotate(Direction direction) {
++    // Paper end - Avoid Lazy Initialization for Enum Fields
+         return this.rotatedDirections.get(direction);
+     }
+