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 
public class org.eclipse.collections.impl.block.procedure.MaxByProcedure<T, V extends java.lang.Comparable<? super V>> implements org.eclipse.collections.api.block.procedure.Procedure<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.eclipse.collections.impl.block.procedure.MaxByProcedure
  super_class: java.lang.Object
{
  private static final long serialVersionUID;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 1

  protected final org.eclipse.collections.api.block.function.Function<? super T, ? extends V> function;
    descriptor: Lorg/eclipse/collections/api/block/function/Function;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL
    Signature: Lorg/eclipse/collections/api/block/function/Function<-TT;+TV;>;

  protected boolean visitedAtLeastOnce;
    descriptor: Z
    flags: (0x0004) ACC_PROTECTED

  protected T result;
    descriptor: Ljava/lang/Object;
    flags: (0x0004) ACC_PROTECTED
    Signature: TT;

  protected V cachedResultValue;
    descriptor: Ljava/lang/Comparable;
    flags: (0x0004) ACC_PROTECTED
    Signature: TV;

  public void <init>(org.eclipse.collections.api.block.function.Function<? super T, ? extends V>);
    descriptor: (Lorg/eclipse/collections/api/block/function/Function;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.eclipse.collections.impl.block.procedure.MaxByProcedure this
        start local 1 // org.eclipse.collections.api.block.function.Function function
         0: .line 32
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 34
            aload 0 /* this */
            aload 1 /* function */
            putfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.function:Lorg/eclipse/collections/api/block/function/Function;
         2: .line 35
            return
        end local 1 // org.eclipse.collections.api.block.function.Function function
        end local 0 // org.eclipse.collections.impl.block.procedure.MaxByProcedure this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0      this  Lorg/eclipse/collections/impl/block/procedure/MaxByProcedure<TT;TV;>;
            0    3     1  function  Lorg/eclipse/collections/api/block/function/Function<-TT;+TV;>;
    Signature: (Lorg/eclipse/collections/api/block/function/Function<-TT;+TV;>;)V
    MethodParameters:
          Name  Flags
      function  

  public boolean isVisitedAtLeastOnce();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.block.procedure.MaxByProcedure this
         0: .line 39
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.visitedAtLeastOnce:Z
            ireturn
        end local 0 // org.eclipse.collections.impl.block.procedure.MaxByProcedure this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/eclipse/collections/impl/block/procedure/MaxByProcedure<TT;TV;>;

  public T getResult();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.block.procedure.MaxByProcedure this
         0: .line 44
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.visitedAtLeastOnce:Z
            ifne 2
         1: .line 46
            new java.util.NoSuchElementException
            dup
            invokespecial java.util.NoSuchElementException.<init>:()V
            athrow
         2: .line 48
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.result:Ljava/lang/Object;
            areturn
        end local 0 // org.eclipse.collections.impl.block.procedure.MaxByProcedure this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/eclipse/collections/impl/block/procedure/MaxByProcedure<TT;TV;>;
    Signature: ()TT;

  public java.util.Optional<T> getResultOptional();
    descriptor: ()Ljava/util/Optional;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.block.procedure.MaxByProcedure this
         0: .line 53
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.visitedAtLeastOnce:Z
            ifne 2
         1: .line 55
            invokestatic java.util.Optional.empty:()Ljava/util/Optional;
            areturn
         2: .line 57
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.result:Ljava/lang/Object;
            invokestatic java.util.Optional.of:(Ljava/lang/Object;)Ljava/util/Optional;
            areturn
        end local 0 // org.eclipse.collections.impl.block.procedure.MaxByProcedure this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/eclipse/collections/impl/block/procedure/MaxByProcedure<TT;TV;>;
    Signature: ()Ljava/util/Optional<TT;>;

  public void value();
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // org.eclipse.collections.impl.block.procedure.MaxByProcedure this
        start local 1 // java.lang.Object each
         0: .line 63
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.visitedAtLeastOnce:Z
            ifeq 6
         1: .line 65
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.function:Lorg/eclipse/collections/api/block/function/Function;
            aload 1 /* each */
            invokeinterface org.eclipse.collections.api.block.function.Function.valueOf:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.Comparable
            astore 2 /* eachValue */
        start local 2 // java.lang.Comparable eachValue
         2: .line 66
            aload 2 /* eachValue */
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.cachedResultValue:Ljava/lang/Comparable;
            invokeinterface java.lang.Comparable.compareTo:(Ljava/lang/Object;)I
            ifle 9
         3: .line 68
            aload 0 /* this */
            aload 1 /* each */
            putfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.result:Ljava/lang/Object;
         4: .line 69
            aload 0 /* this */
            aload 2 /* eachValue */
            putfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.cachedResultValue:Ljava/lang/Comparable;
        end local 2 // java.lang.Comparable eachValue
         5: .line 71
            goto 9
         6: .line 74
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            iconst_1
            putfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.visitedAtLeastOnce:Z
         7: .line 75
            aload 0 /* this */
            aload 1 /* each */
            putfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.result:Ljava/lang/Object;
         8: .line 76
            aload 0 /* this */
            aload 0 /* this */
            getfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.function:Lorg/eclipse/collections/api/block/function/Function;
            aload 1 /* each */
            invokeinterface org.eclipse.collections.api.block.function.Function.valueOf:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.Comparable
            putfield org.eclipse.collections.impl.block.procedure.MaxByProcedure.cachedResultValue:Ljava/lang/Comparable;
         9: .line 78
      StackMap locals:
      StackMap stack:
            return
        end local 1 // java.lang.Object each
        end local 0 // org.eclipse.collections.impl.block.procedure.MaxByProcedure this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   10     0       this  Lorg/eclipse/collections/impl/block/procedure/MaxByProcedure<TT;TV;>;
            0   10     1       each  TT;
            2    5     2  eachValue  TV;
    Signature: (TT;)V
    MethodParameters:
      Name  Flags
      each  
}
Signature: <T:Ljava/lang/Object;V::Ljava/lang/Comparable<-TV;>;>Ljava/lang/Object;Lorg/eclipse/collections/api/block/procedure/Procedure<TT;>;
SourceFile: "MaxByProcedure.java"