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 final class org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions
  super_class: java.lang.Object
{
  private static final org.eclipse.collections.api.block.function.primitive.CharToCharFunction TO_UPPERCASE;
    descriptor: Lorg/eclipse/collections/api/block/function/primitive/CharToCharFunction;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final org.eclipse.collections.api.block.function.primitive.CharToCharFunction TO_LOWERCASE;
    descriptor: Lorg/eclipse/collections/api/block/function/primitive/CharToCharFunction;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 17
            new org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions$ToUpperCaseCharToCharFunction
            dup
            invokespecial org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions$ToUpperCaseCharToCharFunction.<init>:()V
            putstatic org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions.TO_UPPERCASE:Lorg/eclipse/collections/api/block/function/primitive/CharToCharFunction;
         1: .line 19
            new org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions$ToLowerCaseCharToCharFunction
            dup
            invokespecial org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions$ToLowerCaseCharToCharFunction.<init>:()V
            putstatic org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions.TO_LOWERCASE:Lorg/eclipse/collections/api/block/function/primitive/CharToCharFunction;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions this
         0: .line 21
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 23
            new java.lang.AssertionError
            dup
            ldc "Suppress default constructor for noninstantiability"
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
        end local 0 // org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/eclipse/collections/impl/block/factory/primitive/CharToCharFunctions;

  public static org.eclipse.collections.api.block.function.primitive.CharToCharFunction toUpperCase();
    descriptor: ()Lorg/eclipse/collections/api/block/function/primitive/CharToCharFunction;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 28
            getstatic org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions.TO_UPPERCASE:Lorg/eclipse/collections/api/block/function/primitive/CharToCharFunction;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public static org.eclipse.collections.api.block.function.primitive.CharToCharFunction toLowerCase();
    descriptor: ()Lorg/eclipse/collections/api/block/function/primitive/CharToCharFunction;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 33
            getstatic org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions.TO_LOWERCASE:Lorg/eclipse/collections/api/block/function/primitive/CharToCharFunction;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "CharToCharFunctions.java"
NestMembers:
  org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions$ToLowerCaseCharToCharFunction  org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions$ToUpperCaseCharToCharFunction
InnerClasses:
  private ToLowerCaseCharToCharFunction = org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions$ToLowerCaseCharToCharFunction of org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions
  private ToUpperCaseCharToCharFunction = org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions$ToUpperCaseCharToCharFunction of org.eclipse.collections.impl.block.factory.primitive.CharToCharFunctions