https://freemarker.apache.org/: FreeMarker is a "template engine"; a generic tool to generate text output based on templates. (Apache Software Foundation) 
class freemarker.core.BuiltInsForLoopVariables
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: freemarker.core.BuiltInsForLoopVariables
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // freemarker.core.BuiltInsForLoopVariables this
         0: .line 33
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // freemarker.core.BuiltInsForLoopVariables this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lfreemarker/core/BuiltInsForLoopVariables;
}
SourceFile: "BuiltInsForLoopVariables.java"
NestMembers:
  freemarker.core.BuiltInsForLoopVariables$BooleanBuiltInForLoopVariable  freemarker.core.BuiltInsForLoopVariables$counterBI  freemarker.core.BuiltInsForLoopVariables$has_nextBI  freemarker.core.BuiltInsForLoopVariables$indexBI  freemarker.core.BuiltInsForLoopVariables$is_even_itemBI  freemarker.core.BuiltInsForLoopVariables$is_firstBI  freemarker.core.BuiltInsForLoopVariables$is_lastBI  freemarker.core.BuiltInsForLoopVariables$is_odd_itemBI  freemarker.core.BuiltInsForLoopVariables$item_cycleBI  freemarker.core.BuiltInsForLoopVariables$item_cycleBI$BIMethod  freemarker.core.BuiltInsForLoopVariables$item_parityBI  freemarker.core.BuiltInsForLoopVariables$item_parity_capBI
InnerClasses:
  abstract BooleanBuiltInForLoopVariable = freemarker.core.BuiltInsForLoopVariables$BooleanBuiltInForLoopVariable of freemarker.core.BuiltInsForLoopVariables
  counterBI = freemarker.core.BuiltInsForLoopVariables$counterBI of freemarker.core.BuiltInsForLoopVariables
  has_nextBI = freemarker.core.BuiltInsForLoopVariables$has_nextBI of freemarker.core.BuiltInsForLoopVariables
  indexBI = freemarker.core.BuiltInsForLoopVariables$indexBI of freemarker.core.BuiltInsForLoopVariables
  is_even_itemBI = freemarker.core.BuiltInsForLoopVariables$is_even_itemBI of freemarker.core.BuiltInsForLoopVariables
  is_firstBI = freemarker.core.BuiltInsForLoopVariables$is_firstBI of freemarker.core.BuiltInsForLoopVariables
  is_lastBI = freemarker.core.BuiltInsForLoopVariables$is_lastBI of freemarker.core.BuiltInsForLoopVariables
  is_odd_itemBI = freemarker.core.BuiltInsForLoopVariables$is_odd_itemBI of freemarker.core.BuiltInsForLoopVariables
  item_cycleBI = freemarker.core.BuiltInsForLoopVariables$item_cycleBI of freemarker.core.BuiltInsForLoopVariables
  item_parityBI = freemarker.core.BuiltInsForLoopVariables$item_parityBI of freemarker.core.BuiltInsForLoopVariables
  item_parity_capBI = freemarker.core.BuiltInsForLoopVariables$item_parity_capBI of freemarker.core.BuiltInsForLoopVariables