http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
public final class org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu
  super_class: java.lang.Object
{
  public static final org.apache.fop.pdf.StructureType RUBY;
    descriptor: Lorg/apache/fop/pdf/StructureType;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.apache.fop.pdf.StructureType RB;
    descriptor: Lorg/apache/fop/pdf/StructureType;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.apache.fop.pdf.StructureType RT;
    descriptor: Lorg/apache/fop/pdf/StructureType;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.apache.fop.pdf.StructureType RP;
    descriptor: Lorg/apache/fop/pdf/StructureType;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.apache.fop.pdf.StructureType WARICHU;
    descriptor: Lorg/apache/fop/pdf/StructureType;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.apache.fop.pdf.StructureType WT;
    descriptor: Lorg/apache/fop/pdf/StructureType;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  public static final org.apache.fop.pdf.StructureType WP;
    descriptor: Lorg/apache/fop/pdf/StructureType;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 86
            new org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl
            dup
            ldc "Ruby"
            invokespecial org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl.<init>:(Ljava/lang/String;)V
            putstatic org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu.RUBY:Lorg/apache/fop/pdf/StructureType;
         1: .line 87
            new org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl
            dup
            ldc "RB"
            invokespecial org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl.<init>:(Ljava/lang/String;)V
            putstatic org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu.RB:Lorg/apache/fop/pdf/StructureType;
         2: .line 88
            new org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl
            dup
            ldc "RT"
            invokespecial org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl.<init>:(Ljava/lang/String;)V
            putstatic org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu.RT:Lorg/apache/fop/pdf/StructureType;
         3: .line 89
            new org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl
            dup
            ldc "RP"
            invokespecial org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl.<init>:(Ljava/lang/String;)V
            putstatic org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu.RP:Lorg/apache/fop/pdf/StructureType;
         4: .line 90
            new org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl
            dup
            ldc "Warichu"
            invokespecial org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl.<init>:(Ljava/lang/String;)V
            putstatic org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu.WARICHU:Lorg/apache/fop/pdf/StructureType;
         5: .line 91
            new org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl
            dup
            ldc "WT"
            invokespecial org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl.<init>:(Ljava/lang/String;)V
            putstatic org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu.WT:Lorg/apache/fop/pdf/StructureType;
         6: .line 92
            new org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl
            dup
            ldc "WP"
            invokespecial org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl.<init>:(Ljava/lang/String;)V
            putstatic org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu.WP:Lorg/apache/fop/pdf/StructureType;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu this
         0: .line 85
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/pdf/StandardStructureTypes$RubyOrWarichu;
}
SourceFile: "StandardStructureTypes.java"
NestHost: org.apache.fop.pdf.StandardStructureTypes
InnerClasses:
  public final RubyOrWarichu = org.apache.fop.pdf.StandardStructureTypes$RubyOrWarichu of org.apache.fop.pdf.StandardStructureTypes
  private StructureTypeImpl = org.apache.fop.pdf.StandardStructureTypes$StructureTypeImpl of org.apache.fop.pdf.StandardStructureTypes