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) 
final class org.apache.fop.afp.GrayScaleColorConverter implements org.apache.xmlgraphics.java2d.color.ColorConverter
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.apache.fop.afp.GrayScaleColorConverter
  super_class: java.lang.Object
{
  private static final int RED_WEIGHT;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 77

  private static final int GREEN_WEIGTH;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 150

  private static final int BLUE_WEIGHT;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 28

  private static final org.apache.fop.afp.GrayScaleColorConverter SINGLETON;
    descriptor: Lorg/apache/fop/afp/GrayScaleColorConverter;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 38
            new org.apache.fop.afp.GrayScaleColorConverter
            dup
            invokespecial org.apache.fop.afp.GrayScaleColorConverter.<init>:()V
            putstatic org.apache.fop.afp.GrayScaleColorConverter.SINGLETON:Lorg/apache/fop/afp/GrayScaleColorConverter;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.afp.GrayScaleColorConverter this
         0: .line 40
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.apache.fop.afp.GrayScaleColorConverter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/afp/GrayScaleColorConverter;

  public static org.apache.fop.afp.GrayScaleColorConverter getInstance();
    descriptor: ()Lorg/apache/fop/afp/GrayScaleColorConverter;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 48
            getstatic org.apache.fop.afp.GrayScaleColorConverter.SINGLETON:Lorg/apache/fop/afp/GrayScaleColorConverter;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public java.awt.Color convert(java.awt.Color);
    descriptor: (Ljava/awt/Color;)Ljava/awt/Color;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // org.apache.fop.afp.GrayScaleColorConverter this
        start local 1 // java.awt.Color color
         0: .line 56
            bipush 77
            aload 1 /* color */
            invokevirtual java.awt.Color.getRed:()I
            imul
            sipush 150
            aload 1 /* color */
            invokevirtual java.awt.Color.getGreen:()I
            imul
            iadd
            bipush 28
         1: .line 57
            aload 1 /* color */
            invokevirtual java.awt.Color.getBlue:()I
            imul
         2: .line 56
            iadd
            i2f
         3: .line 57
            ldc 255.0
         4: .line 56
            fdiv
         5: .line 57
            ldc 255.0
         6: .line 56
            fdiv
            fstore 2 /* kValue */
        start local 2 // float kValue
         7: .line 59
            fload 2 /* kValue */
            invokestatic org.apache.fop.util.ColorUtil.toCMYKGrayColor:(F)Ljava/awt/Color;
            areturn
        end local 2 // float kValue
        end local 1 // java.awt.Color color
        end local 0 // org.apache.fop.afp.GrayScaleColorConverter this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    8     0    this  Lorg/apache/fop/afp/GrayScaleColorConverter;
            0    8     1   color  Ljava/awt/Color;
            7    8     2  kValue  F
    MethodParameters:
       Name  Flags
      color  
}
SourceFile: "GrayScaleColorConverter.java"