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 abstract class org.apache.fop.pdf.AbstractPDFFontStream extends org.apache.fop.pdf.AbstractPDFStream
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: org.apache.fop.pdf.AbstractPDFFontStream
  super_class: org.apache.fop.pdf.AbstractPDFStream
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.AbstractPDFFontStream this
         0: .line 32
            aload 0 /* this */
            invokespecial org.apache.fop.pdf.AbstractPDFStream.<init>:()V
         1: .line 33
            return
        end local 0 // org.apache.fop.pdf.AbstractPDFFontStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/fop/pdf/AbstractPDFFontStream;

  protected java.lang.String getDefaultFilterName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.AbstractPDFFontStream this
         0: .line 37
            ldc "font"
            areturn
        end local 0 // org.apache.fop.pdf.AbstractPDFFontStream this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/pdf/AbstractPDFFontStream;
}
SourceFile: "AbstractPDFFontStream.java"