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.Version
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.fop.Version
  super_class: java.lang.Object
{
  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.Version this
         0: .line 29
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.apache.fop.Version this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/Version;

  public static java.lang.String getVersion();
    descriptor: ()Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=4, args_size=0
         0: .line 36
            aconst_null
            astore 0 /* version */
        start local 0 // java.lang.String version
         1: .line 37
            ldc Lorg/apache/fop/Version;
            invokevirtual java.lang.Class.getPackage:()Ljava/lang/Package;
            astore 1 /* jarinfo */
        start local 1 // java.lang.Package jarinfo
         2: .line 38
            aload 1 /* jarinfo */
            ifnull 4
         3: .line 39
            aload 1 /* jarinfo */
            invokevirtual java.lang.Package.getImplementationVersion:()Ljava/lang/String;
            astore 0 /* version */
         4: .line 41
      StackMap locals: java.lang.String java.lang.Package
      StackMap stack:
            aload 0 /* version */
            ifnonnull 16
         5: .line 44
            ldc "$HeadURL: https://svn.apache.org/repos/asf/xmlgraphics/fop/branches/fop-2_3/fop-core/src/main/java/org/apache/fop/Version.java $"
            astore 2 /* headURL */
        start local 2 // java.lang.String headURL
         6: .line 46
            aload 2 /* headURL */
            astore 0 /* version */
         7: .line 48
            aload 0 /* version */
            ldc "/xmlgraphics/fop/"
            invokevirtual java.lang.String.indexOf:(Ljava/lang/String;)I
            istore 3 /* pos */
        start local 3 // int pos
         8: .line 49
            iload 3 /* pos */
            iflt 14
         9: .line 50
            aload 0 /* version */
            iload 3 /* pos */
            ldc "/xmlgraphics/fop/"
            invokevirtual java.lang.String.length:()I
            iadd
            iconst_1
            isub
            aload 0 /* version */
            invokevirtual java.lang.String.length:()I
            iconst_2
            isub
            invokevirtual java.lang.String.substring:(II)Ljava/lang/String;
            astore 0 /* version */
        10: .line 51
            aload 0 /* version */
            ldc "/src/"
            invokevirtual java.lang.String.indexOf:(Ljava/lang/String;)I
            istore 3 /* pos */
        11: .line 52
            aload 0 /* version */
            iconst_1
            iload 3 /* pos */
            invokevirtual java.lang.String.substring:(II)Ljava/lang/String;
            astore 0 /* version */
        12: .line 53
            new java.lang.StringBuilder
            dup
            ldc " "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* version */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            astore 0 /* version */
        13: .line 54
            goto 15
        14: .line 55
      StackMap locals: java.lang.String int
      StackMap stack:
            ldc ""
            astore 0 /* version */
        15: .line 57
      StackMap locals:
      StackMap stack:
            new java.lang.StringBuilder
            dup
            ldc "SVN"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* version */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            astore 0 /* version */
        end local 3 // int pos
        end local 2 // java.lang.String headURL
        16: .line 59
      StackMap locals:
      StackMap stack:
            aload 0 /* version */
            areturn
        end local 1 // java.lang.Package jarinfo
        end local 0 // java.lang.String version
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            1   17     0  version  Ljava/lang/String;
            2   17     1  jarinfo  Ljava/lang/Package;
            6   16     2  headURL  Ljava/lang/String;
            8   16     3      pos  I
}
SourceFile: "Version.java"