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.PDFReference implements org.apache.fop.pdf.PDFWritable
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.fop.pdf.PDFReference
  super_class: java.lang.Object
{
  private org.apache.fop.pdf.PDFObjectNumber objectNumber;
    descriptor: Lorg/apache/fop/pdf/PDFObjectNumber;
    flags: (0x0002) ACC_PRIVATE

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

  private java.lang.ref.Reference<org.apache.fop.pdf.PDFObject> objReference;
    descriptor: Ljava/lang/ref/Reference;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljava/lang/ref/Reference<Lorg/apache/fop/pdf/PDFObject;>;

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 32
            ldc Lorg/apache/fop/pdf/PDFReference;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic org.apache.fop.pdf.PDFReference.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(org.apache.fop.pdf.PDFObject);
    descriptor: (Lorg/apache/fop/pdf/PDFObject;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // org.apache.fop.pdf.PDFReference this
        start local 1 // org.apache.fop.pdf.PDFObject obj
         0: .line 43
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 44
            aload 0 /* this */
            aload 1 /* obj */
            invokevirtual org.apache.fop.pdf.PDFObject.getObjectNumber:()Lorg/apache/fop/pdf/PDFObjectNumber;
            putfield org.apache.fop.pdf.PDFReference.objectNumber:Lorg/apache/fop/pdf/PDFObjectNumber;
         2: .line 45
            aload 0 /* this */
            aload 1 /* obj */
            invokevirtual org.apache.fop.pdf.PDFObject.getGeneration:()I
            putfield org.apache.fop.pdf.PDFReference.generation:I
         3: .line 46
            aload 0 /* this */
            new java.lang.ref.SoftReference
            dup
            aload 1 /* obj */
            invokespecial java.lang.ref.SoftReference.<init>:(Ljava/lang/Object;)V
            putfield org.apache.fop.pdf.PDFReference.objReference:Ljava/lang/ref/Reference;
         4: .line 47
            return
        end local 1 // org.apache.fop.pdf.PDFObject obj
        end local 0 // org.apache.fop.pdf.PDFReference this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/apache/fop/pdf/PDFReference;
            0    5     1   obj  Lorg/apache/fop/pdf/PDFObject;
    MethodParameters:
      Name  Flags
      obj   

  public void <init>(java.lang.String);
    descriptor: (Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=2
        start local 0 // org.apache.fop.pdf.PDFReference this
        start local 1 // java.lang.String ref
         0: .line 53
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 54
            aload 1 /* ref */
            ifnonnull 3
         2: .line 55
            new java.lang.NullPointerException
            dup
            ldc "ref must not be null"
            invokespecial java.lang.NullPointerException.<init>:(Ljava/lang/String;)V
            athrow
         3: .line 57
      StackMap locals: org.apache.fop.pdf.PDFReference java.lang.String
      StackMap stack:
            aload 1 /* ref */
            ldc " "
            invokevirtual java.lang.String.split:(Ljava/lang/String;)[Ljava/lang/String;
            astore 2 /* parts */
        start local 2 // java.lang.String[] parts
         4: .line 58
            getstatic org.apache.fop.pdf.PDFReference.$assertionsDisabled:Z
            ifne 5
            aload 2 /* parts */
            arraylength
            iconst_3
            if_icmpeq 5
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         5: .line 59
      StackMap locals: java.lang.String[]
      StackMap stack:
            aload 0 /* this */
            new org.apache.fop.pdf.PDFObjectNumber
            dup
            aload 2 /* parts */
            iconst_0
            aaload
            invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
            invokespecial org.apache.fop.pdf.PDFObjectNumber.<init>:(I)V
            putfield org.apache.fop.pdf.PDFReference.objectNumber:Lorg/apache/fop/pdf/PDFObjectNumber;
         6: .line 60
            aload 0 /* this */
            aload 2 /* parts */
            iconst_1
            aaload
            invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
            putfield org.apache.fop.pdf.PDFReference.generation:I
         7: .line 61
            getstatic org.apache.fop.pdf.PDFReference.$assertionsDisabled:Z
            ifne 8
            ldc "R"
            aload 2 /* parts */
            iconst_2
            aaload
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifne 8
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         8: .line 62
      StackMap locals:
      StackMap stack:
            return
        end local 2 // java.lang.String[] parts
        end local 1 // java.lang.String ref
        end local 0 // org.apache.fop.pdf.PDFReference this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    9     0   this  Lorg/apache/fop/pdf/PDFReference;
            0    9     1    ref  Ljava/lang/String;
            4    9     2  parts  [Ljava/lang/String;
    MethodParameters:
      Name  Flags
      ref   

  public org.apache.fop.pdf.PDFObject getObject();
    descriptor: ()Lorg/apache/fop/pdf/PDFObject;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // org.apache.fop.pdf.PDFReference this
         0: .line 69
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFReference.objReference:Ljava/lang/ref/Reference;
            ifnull 5
         1: .line 70
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFReference.objReference:Ljava/lang/ref/Reference;
            invokevirtual java.lang.ref.Reference.get:()Ljava/lang/Object;
            checkcast org.apache.fop.pdf.PDFObject
            astore 1 /* obj */
        start local 1 // org.apache.fop.pdf.PDFObject obj
         2: .line 71
            aload 1 /* obj */
            ifnonnull 4
         3: .line 72
            aload 0 /* this */
            aconst_null
            putfield org.apache.fop.pdf.PDFReference.objReference:Ljava/lang/ref/Reference;
         4: .line 74
      StackMap locals: org.apache.fop.pdf.PDFObject
      StackMap stack:
            aload 1 /* obj */
            areturn
        end local 1 // org.apache.fop.pdf.PDFObject obj
         5: .line 76
      StackMap locals:
      StackMap stack:
            aconst_null
            areturn
        end local 0 // org.apache.fop.pdf.PDFReference this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lorg/apache/fop/pdf/PDFReference;
            2    5     1   obj  Lorg/apache/fop/pdf/PDFObject;

  public org.apache.fop.pdf.PDFObjectNumber getObjectNumber();
    descriptor: ()Lorg/apache/fop/pdf/PDFObjectNumber;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.PDFReference this
         0: .line 85
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFReference.objectNumber:Lorg/apache/fop/pdf/PDFObjectNumber;
            areturn
        end local 0 // org.apache.fop.pdf.PDFReference this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/pdf/PDFReference;

  public int getGeneration();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.PDFReference this
         0: .line 93
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFReference.generation:I
            ireturn
        end local 0 // org.apache.fop.pdf.PDFReference this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/pdf/PDFReference;

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // org.apache.fop.pdf.PDFReference this
         0: .line 99
            new java.lang.StringBuilder
            dup
            invokespecial java.lang.StringBuilder.<init>:()V
            astore 1 /* textBuffer */
        start local 1 // java.lang.StringBuilder textBuffer
         1: .line 100
            aload 0 /* this */
            aconst_null
            aload 1 /* textBuffer */
            invokevirtual org.apache.fop.pdf.PDFReference.outputInline:(Ljava/io/OutputStream;Ljava/lang/StringBuilder;)V
         2: .line 101
            aload 1 /* textBuffer */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 1 // java.lang.StringBuilder textBuffer
        end local 0 // org.apache.fop.pdf.PDFReference this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lorg/apache/fop/pdf/PDFReference;
            1    3     1  textBuffer  Ljava/lang/StringBuilder;

  public void outputInline(java.io.OutputStream, java.lang.StringBuilder);
    descriptor: (Ljava/io/OutputStream;Ljava/lang/StringBuilder;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.apache.fop.pdf.PDFReference this
        start local 1 // java.io.OutputStream out
        start local 2 // java.lang.StringBuilder textBuffer
         0: .line 106
            aload 2 /* textBuffer */
            aload 0 /* this */
            invokevirtual org.apache.fop.pdf.PDFReference.getObjectNumber:()Lorg/apache/fop/pdf/PDFObjectNumber;
            invokevirtual org.apache.fop.pdf.PDFObjectNumber.getNumber:()I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            bipush 32
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual org.apache.fop.pdf.PDFReference.getGeneration:()I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc " R"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         1: .line 107
            return
        end local 2 // java.lang.StringBuilder textBuffer
        end local 1 // java.io.OutputStream out
        end local 0 // org.apache.fop.pdf.PDFReference this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    2     0        this  Lorg/apache/fop/pdf/PDFReference;
            0    2     1         out  Ljava/io/OutputStream;
            0    2     2  textBuffer  Ljava/lang/StringBuilder;
    MethodParameters:
            Name  Flags
      out         
      textBuffer  
}
SourceFile: "PDFReference.java"