https://github.com/eclipse/eclipse-collections/eclipse-collections: Eclipse Collections is a collections framework for Java. It has JDK-compatible List, Set and Map implementations with a rich API and set of utility classes that work with any JDK compatible Collections, Arrays, Maps or Strings. The iteration protocol was inspired by the Smalltalk collection framework.
  • Craig P. Motlin
  • Donald Raab
  • Mohammad A. Rezaei
  • Hiroshi Ito
  • Nikhil J. Nanivadekar 
final class org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner<T, V> extends org.eclipse.collections.impl.parallel.AbstractProcedureCombiner<org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntProcedure<T, V>>
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner
  super_class: org.eclipse.collections.impl.parallel.AbstractProcedureCombiner
{
  private final org.eclipse.collections.impl.map.mutable.primitive.ObjectLongHashMap<V> result;
    descriptor: Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap<TV;>;

  private void <init>(org.eclipse.collections.impl.map.mutable.primitive.ObjectLongHashMap<V>);
    descriptor: (Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner this
        start local 1 // org.eclipse.collections.impl.map.mutable.primitive.ObjectLongHashMap result
         0: .line 1618
            aload 0 /* this */
            iconst_1
            invokespecial org.eclipse.collections.impl.parallel.AbstractProcedureCombiner.<init>:(Z)V
         1: .line 1619
            aload 0 /* this */
            aload 1 /* result */
            putfield org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner.result:Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap;
         2: .line 1620
            return
        end local 1 // org.eclipse.collections.impl.map.mutable.primitive.ObjectLongHashMap result
        end local 0 // org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/eclipse/collections/impl/parallel/ParallelIterate$SumByIntCombiner<TT;TV;>;
            0    3     1  result  Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap<TV;>;
    Signature: (Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap<TV;>;)V
    MethodParameters:
        Name  Flags
      result  

  public void combineOne(org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntProcedure<T, V>);
    descriptor: (Lorg/eclipse/collections/impl/parallel/ParallelIterate$SumByIntProcedure;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner this
        start local 1 // org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntProcedure thingToCombine
         0: .line 1625
            aload 0 /* this */
            getfield org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner.result:Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap;
            invokevirtual org.eclipse.collections.impl.map.mutable.primitive.ObjectLongHashMap.isEmpty:()Z
            ifeq 3
         1: .line 1627
            aload 0 /* this */
            getfield org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner.result:Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap;
            aload 1 /* thingToCombine */
            invokevirtual org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntProcedure.getResult:()Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap;
            invokevirtual org.eclipse.collections.impl.map.mutable.primitive.ObjectLongHashMap.putAll:(Lorg/eclipse/collections/api/map/primitive/ObjectLongMap;)V
         2: .line 1628
            goto 4
         3: .line 1631
      StackMap locals:
      StackMap stack:
            aload 1 /* thingToCombine */
            invokevirtual org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntProcedure.getResult:()Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap;
            aload 0 /* this */
            getfield org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner.result:Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap;
            dup
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            pop
            invokedynamic value(Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap;)Lorg/eclipse/collections/api/block/procedure/primitive/ObjectLongProcedure;
              Bootstrap: invokestatic java.lang.invoke.LambdaMetafactory.altMetafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;[Ljava/lang/Object;)Ljava/lang/invoke/CallSite;
                Method arguments:
                  (Ljava/lang/Object;J)V
                  org/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap.addToValue(Ljava/lang/Object;J)J (5)
                  (Ljava/lang/Object;J)V
                  1
            invokevirtual org.eclipse.collections.impl.map.mutable.primitive.ObjectLongHashMap.forEachKeyValue:(Lorg/eclipse/collections/api/block/procedure/primitive/ObjectLongProcedure;)V
         4: .line 1633
      StackMap locals:
      StackMap stack:
            return
        end local 1 // org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntProcedure thingToCombine
        end local 0 // org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    5     0            this  Lorg/eclipse/collections/impl/parallel/ParallelIterate$SumByIntCombiner<TT;TV;>;
            0    5     1  thingToCombine  Lorg/eclipse/collections/impl/parallel/ParallelIterate$SumByIntProcedure<TT;TV;>;
    Signature: (Lorg/eclipse/collections/impl/parallel/ParallelIterate$SumByIntProcedure<TT;TV;>;)V
    MethodParameters:
                Name  Flags
      thingToCombine  

  public void combineOne(java.lang.Object);
    descriptor: (Ljava/lang/Object;)V
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            checkcast org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntProcedure
            invokevirtual org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner.combineOne:(Lorg/eclipse/collections/impl/parallel/ParallelIterate$SumByIntProcedure;)V
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private static java.lang.Object $deserializeLambda$(java.lang.invoke.SerializedLambda);
    descriptor: (Ljava/lang/invoke/SerializedLambda;)Ljava/lang/Object;
    flags: (0x100a) ACC_PRIVATE, ACC_STATIC, ACC_SYNTHETIC
    Code:
      stack=4, locals=3, args_size=1
         0: .line 1
            aload 0
            invokevirtual java.lang.invoke.SerializedLambda.getImplMethodName:()Ljava/lang/String;
            astore 1
            iconst_m1
            istore 2
            aload 1
            invokevirtual java.lang.String.hashCode:()I
            lookupswitch { // 1
            744734677: 1
              default: 2
          }
      StackMap locals: java.lang.String int
      StackMap stack:
         1: aload 1
            ldc "addToValue"
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 2
            iconst_0
            istore 2
      StackMap locals:
      StackMap stack:
         2: iload 2
            lookupswitch { // 1
                    0: 3
              default: 4
          }
      StackMap locals:
      StackMap stack:
         3: aload 0
            invokevirtual java.lang.invoke.SerializedLambda.getImplMethodKind:()I
            bipush 5
            if_icmpne 4
            aload 0
            invokevirtual java.lang.invoke.SerializedLambda.getFunctionalInterfaceClass:()Ljava/lang/String;
            ldc "org/eclipse/collections/api/block/procedure/primitive/ObjectLongProcedure"
            invokevirtual java.lang.Object.equals:(Ljava/lang/Object;)Z
            ifeq 4
            aload 0
            invokevirtual java.lang.invoke.SerializedLambda.getFunctionalInterfaceMethodName:()Ljava/lang/String;
            ldc "value"
            invokevirtual java.lang.Object.equals:(Ljava/lang/Object;)Z
            ifeq 4
            aload 0
            invokevirtual java.lang.invoke.SerializedLambda.getFunctionalInterfaceMethodSignature:()Ljava/lang/String;
            ldc "(Ljava/lang/Object;J)V"
            invokevirtual java.lang.Object.equals:(Ljava/lang/Object;)Z
            ifeq 4
            aload 0
            invokevirtual java.lang.invoke.SerializedLambda.getImplClass:()Ljava/lang/String;
            ldc "org/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap"
            invokevirtual java.lang.Object.equals:(Ljava/lang/Object;)Z
            ifeq 4
            aload 0
            invokevirtual java.lang.invoke.SerializedLambda.getImplMethodSignature:()Ljava/lang/String;
            ldc "(Ljava/lang/Object;J)J"
            invokevirtual java.lang.Object.equals:(Ljava/lang/Object;)Z
            ifeq 4
            aload 0
            iconst_0
            invokevirtual java.lang.invoke.SerializedLambda.getCapturedArg:(I)Ljava/lang/Object;
            checkcast org.eclipse.collections.impl.map.mutable.primitive.ObjectLongHashMap
            invokedynamic value(Lorg/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap;)Lorg/eclipse/collections/api/block/procedure/primitive/ObjectLongProcedure;
              Bootstrap: invokestatic java.lang.invoke.LambdaMetafactory.altMetafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;[Ljava/lang/Object;)Ljava/lang/invoke/CallSite;
                Method arguments:
                  (Ljava/lang/Object;J)V
                  org/eclipse/collections/impl/map/mutable/primitive/ObjectLongHashMap.addToValue(Ljava/lang/Object;J)J (5)
                  (Ljava/lang/Object;J)V
                  1
            areturn
      StackMap locals:
      StackMap stack:
         4: new java.lang.IllegalArgumentException
            dup
            ldc "Invalid lambda deserialization"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: <T:Ljava/lang/Object;V:Ljava/lang/Object;>Lorg/eclipse/collections/impl/parallel/AbstractProcedureCombiner<Lorg/eclipse/collections/impl/parallel/ParallelIterate$SumByIntProcedure<TT;TV;>;>;
SourceFile: "ParallelIterate.java"
NestHost: org.eclipse.collections.impl.parallel.ParallelIterate
InnerClasses:
  public final Lookup = java.lang.invoke.MethodHandles$Lookup of java.lang.invoke.MethodHandles
  private final SumByIntCombiner = org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntCombiner of org.eclipse.collections.impl.parallel.ParallelIterate
  private final SumByIntProcedure = org.eclipse.collections.impl.parallel.ParallelIterate$SumByIntProcedure of org.eclipse.collections.impl.parallel.ParallelIterate