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 class org.apache.fop.pdf.PDFDPartRoot extends org.apache.fop.pdf.PDFDictionary
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.fop.pdf.PDFDPartRoot
  super_class: org.apache.fop.pdf.PDFDictionary
{
  private org.apache.fop.pdf.PDFArray parts;
    descriptor: Lorg/apache/fop/pdf/PDFArray;
    flags: (0x0002) ACC_PRIVATE

  protected org.apache.fop.pdf.PDFDPart dpart;
    descriptor: Lorg/apache/fop/pdf/PDFDPart;
    flags: (0x0004) ACC_PROTECTED

  public void <init>(org.apache.fop.pdf.PDFDocument);
    descriptor: (Lorg/apache/fop/pdf/PDFDocument;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=2
        start local 0 // org.apache.fop.pdf.PDFDPartRoot this
        start local 1 // org.apache.fop.pdf.PDFDocument document
         0: .line 25
            aload 0 /* this */
            invokespecial org.apache.fop.pdf.PDFDictionary.<init>:()V
         1: .line 22
            aload 0 /* this */
            new org.apache.fop.pdf.PDFArray
            dup
            invokespecial org.apache.fop.pdf.PDFArray.<init>:()V
            putfield org.apache.fop.pdf.PDFDPartRoot.parts:Lorg/apache/fop/pdf/PDFArray;
         2: .line 26
            aload 0 /* this */
            ldc "Type"
            new org.apache.fop.pdf.PDFName
            dup
            ldc "DPartRoot"
            invokespecial org.apache.fop.pdf.PDFName.<init>:(Ljava/lang/String;)V
            invokevirtual org.apache.fop.pdf.PDFDPartRoot.put:(Ljava/lang/String;Ljava/lang/Object;)V
         3: .line 27
            aload 0 /* this */
            new org.apache.fop.pdf.PDFDPart
            dup
            aload 0 /* this */
            invokespecial org.apache.fop.pdf.PDFDPart.<init>:(Lorg/apache/fop/pdf/PDFDictionary;)V
            putfield org.apache.fop.pdf.PDFDPartRoot.dpart:Lorg/apache/fop/pdf/PDFDPart;
         4: .line 28
            aload 1 /* document */
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFDPartRoot.dpart:Lorg/apache/fop/pdf/PDFDPart;
            invokevirtual org.apache.fop.pdf.PDFDocument.registerTrailerObject:(Lorg/apache/fop/pdf/PDFObject;)Lorg/apache/fop/pdf/PDFObject;
            pop
         5: .line 29
            new org.apache.fop.pdf.PDFArray
            dup
            invokespecial org.apache.fop.pdf.PDFArray.<init>:()V
            astore 2 /* dparts */
        start local 2 // org.apache.fop.pdf.PDFArray dparts
         6: .line 30
            aload 2 /* dparts */
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFDPartRoot.parts:Lorg/apache/fop/pdf/PDFArray;
            invokevirtual org.apache.fop.pdf.PDFArray.add:(Ljava/lang/Object;)V
         7: .line 31
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFDPartRoot.dpart:Lorg/apache/fop/pdf/PDFDPart;
            ldc "DParts"
            aload 2 /* dparts */
            invokevirtual org.apache.fop.pdf.PDFDPart.put:(Ljava/lang/String;Ljava/lang/Object;)V
         8: .line 32
            aload 0 /* this */
            ldc "DPartRootNode"
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFDPartRoot.dpart:Lorg/apache/fop/pdf/PDFDPart;
            invokevirtual org.apache.fop.pdf.PDFDPart.makeReference:()Lorg/apache/fop/pdf/PDFReference;
            invokevirtual org.apache.fop.pdf.PDFDPartRoot.put:(Ljava/lang/String;Ljava/lang/Object;)V
         9: .line 33
            new org.apache.fop.pdf.PDFArray
            dup
            invokespecial org.apache.fop.pdf.PDFArray.<init>:()V
            astore 3 /* nodeNameList */
        start local 3 // org.apache.fop.pdf.PDFArray nodeNameList
        10: .line 34
            aload 3 /* nodeNameList */
            new org.apache.fop.pdf.PDFName
            dup
            ldc "root"
            invokespecial org.apache.fop.pdf.PDFName.<init>:(Ljava/lang/String;)V
            invokevirtual org.apache.fop.pdf.PDFArray.add:(Ljava/lang/Object;)V
        11: .line 35
            aload 3 /* nodeNameList */
            new org.apache.fop.pdf.PDFName
            dup
            ldc "record"
            invokespecial org.apache.fop.pdf.PDFName.<init>:(Ljava/lang/String;)V
            invokevirtual org.apache.fop.pdf.PDFArray.add:(Ljava/lang/Object;)V
        12: .line 36
            aload 0 /* this */
            ldc "NodeNameList"
            aload 3 /* nodeNameList */
            invokevirtual org.apache.fop.pdf.PDFDPartRoot.put:(Ljava/lang/String;Ljava/lang/Object;)V
        13: .line 37
            return
        end local 3 // org.apache.fop.pdf.PDFArray nodeNameList
        end local 2 // org.apache.fop.pdf.PDFArray dparts
        end local 1 // org.apache.fop.pdf.PDFDocument document
        end local 0 // org.apache.fop.pdf.PDFDPartRoot this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0   14     0          this  Lorg/apache/fop/pdf/PDFDPartRoot;
            0   14     1      document  Lorg/apache/fop/pdf/PDFDocument;
            6   14     2        dparts  Lorg/apache/fop/pdf/PDFArray;
           10   14     3  nodeNameList  Lorg/apache/fop/pdf/PDFArray;
    MethodParameters:
          Name  Flags
      document  

  public void add(org.apache.fop.pdf.PDFDPart);
    descriptor: (Lorg/apache/fop/pdf/PDFDPart;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.fop.pdf.PDFDPartRoot this
        start local 1 // org.apache.fop.pdf.PDFDPart part
         0: .line 40
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFDPartRoot.parts:Lorg/apache/fop/pdf/PDFArray;
            aload 1 /* part */
            invokevirtual org.apache.fop.pdf.PDFArray.add:(Ljava/lang/Object;)V
         1: .line 41
            return
        end local 1 // org.apache.fop.pdf.PDFDPart part
        end local 0 // org.apache.fop.pdf.PDFDPartRoot this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/fop/pdf/PDFDPartRoot;
            0    2     1  part  Lorg/apache/fop/pdf/PDFDPart;
    MethodParameters:
      Name  Flags
      part  
}
SourceFile: "PDFDPartRoot.java"