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.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure implements org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure
  super_class: java.lang.Object
{
  private double sum;
    descriptor: D
    flags: (0x0002) ACC_PRIVATE

  private double compensation;
    descriptor: D
    flags: (0x0002) ACC_PRIVATE

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure this
         0: .line 463
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 465
            aload 0 /* this */
            dconst_0
            putfield org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure.sum:D
         2: .line 466
            aload 0 /* this */
            dconst_0
            putfield org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure.compensation:D
         3: .line 463
            return
        end local 0 // org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/eclipse/collections/impl/lazy/primitive/AbstractLazyDoubleIterable$DoubleSumProcedure;

  public void value(double);
    descriptor: (D)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=7, args_size=2
        start local 0 // org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure this
        start local 1 // double each
         0: .line 471
            dload 1 /* each */
            aload 0 /* this */
            getfield org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure.compensation:D
            dsub
            dstore 3 /* adjustedValue */
        start local 3 // double adjustedValue
         1: .line 472
            aload 0 /* this */
            getfield org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure.sum:D
            dload 3 /* adjustedValue */
            dadd
            dstore 5 /* nextSum */
        start local 5 // double nextSum
         2: .line 473
            aload 0 /* this */
            dload 5 /* nextSum */
            aload 0 /* this */
            getfield org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure.sum:D
            dsub
            dload 3 /* adjustedValue */
            dsub
            putfield org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure.compensation:D
         3: .line 474
            aload 0 /* this */
            dload 5 /* nextSum */
            putfield org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure.sum:D
         4: .line 475
            return
        end local 5 // double nextSum
        end local 3 // double adjustedValue
        end local 1 // double each
        end local 0 // org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0    5     0           this  Lorg/eclipse/collections/impl/lazy/primitive/AbstractLazyDoubleIterable$DoubleSumProcedure;
            0    5     1           each  D
            1    5     3  adjustedValue  D
            2    5     5        nextSum  D
    MethodParameters:
      Name  Flags
      each  

  public double getValue();
    descriptor: ()D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure this
         0: .line 479
            aload 0 /* this */
            getfield org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure.sum:D
            dreturn
        end local 0 // org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/lazy/primitive/AbstractLazyDoubleIterable$DoubleSumProcedure;
}
SourceFile: "AbstractLazyDoubleIterable.java"
NestHost: org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable
InnerClasses:
  private final DoubleSumProcedure = org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable$DoubleSumProcedure of org.eclipse.collections.impl.lazy.primitive.AbstractLazyDoubleIterable