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.FMParser$ParserIteratorBlockContext
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: freemarker.core.FMParser$ParserIteratorBlockContext
  super_class: java.lang.Object
{
  private java.lang.String loopVarName;
    descriptor: Ljava/lang/String;
    flags: (0x0002) ACC_PRIVATE

  private java.lang.String loopVar2Name;
    descriptor: Ljava/lang/String;
    flags: (0x0002) ACC_PRIVATE

  private int kind;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private boolean hashListing;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // freemarker.core.FMParser$ParserIteratorBlockContext this
         0: .line 21
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // freemarker.core.FMParser$ParserIteratorBlockContext this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lfreemarker/core/FMParser$ParserIteratorBlockContext;
}
SourceFile: "FMParser.java"
NestHost: freemarker.core.FMParser
InnerClasses:
  private ParserIteratorBlockContext = freemarker.core.FMParser$ParserIteratorBlockContext of freemarker.core.FMParser