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.ASCIIHexFilter extends org.apache.fop.pdf.PDFFilter
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.fop.pdf.ASCIIHexFilter
  super_class: org.apache.fop.pdf.PDFFilter
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.ASCIIHexFilter this
         0: .line 31
            aload 0 /* this */
            invokespecial org.apache.fop.pdf.PDFFilter.<init>:()V
            return
        end local 0 // org.apache.fop.pdf.ASCIIHexFilter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/pdf/ASCIIHexFilter;

  public java.lang.String getName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.ASCIIHexFilter this
         0: .line 39
            ldc "/ASCIIHexDecode"
            areturn
        end local 0 // org.apache.fop.pdf.ASCIIHexFilter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/pdf/ASCIIHexFilter;

  public boolean isASCIIFilter();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.ASCIIHexFilter this
         0: .line 46
            iconst_1
            ireturn
        end local 0 // org.apache.fop.pdf.ASCIIHexFilter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/pdf/ASCIIHexFilter;

  public org.apache.fop.pdf.PDFObject getDecodeParms();
    descriptor: ()Lorg/apache/fop/pdf/PDFObject;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.ASCIIHexFilter this
         0: .line 55
            aconst_null
            areturn
        end local 0 // org.apache.fop.pdf.ASCIIHexFilter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/pdf/ASCIIHexFilter;

  public java.io.OutputStream applyFilter(java.io.OutputStream);
    descriptor: (Ljava/io/OutputStream;)Ljava/io/OutputStream;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.apache.fop.pdf.ASCIIHexFilter this
        start local 1 // java.io.OutputStream out
         0: .line 62
            aload 0 /* this */
            invokevirtual org.apache.fop.pdf.ASCIIHexFilter.isApplied:()Z
            ifeq 2
         1: .line 63
            aload 1 /* out */
            areturn
         2: .line 65
      StackMap locals:
      StackMap stack:
            new org.apache.xmlgraphics.util.io.ASCIIHexOutputStream
            dup
            aload 1 /* out */
            invokespecial org.apache.xmlgraphics.util.io.ASCIIHexOutputStream.<init>:(Ljava/io/OutputStream;)V
            areturn
        end local 1 // java.io.OutputStream out
        end local 0 // org.apache.fop.pdf.ASCIIHexFilter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/fop/pdf/ASCIIHexFilter;
            0    3     1   out  Ljava/io/OutputStream;
    Exceptions:
      throws java.io.IOException
    MethodParameters:
      Name  Flags
      out   
}
SourceFile: "ASCIIHexFilter.java"