https://openjdk.java.net/projects/openjfx/javafx-graphics/: OpenJFX JavaFX
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class com.sun.glass.ui.monocle.HeadlessScreen implements com.sun.glass.ui.monocle.NativeScreen
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.sun.glass.ui.monocle.HeadlessScreen
  super_class: java.lang.Object
{
  protected int depth;
    descriptor: I
    flags: (0x0004) ACC_PROTECTED

  protected int width;
    descriptor: I
    flags: (0x0004) ACC_PROTECTED

  protected int height;
    descriptor: I
    flags: (0x0004) ACC_PROTECTED

  protected com.sun.glass.ui.monocle.Framebuffer fb;
    descriptor: Lcom/sun/glass/ui/monocle/Framebuffer;
    flags: (0x0004) ACC_PROTECTED

  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 44
            aload 0 /* this */
            sipush 1280
            sipush 800
            bipush 32
            invokespecial com.sun.glass.ui.monocle.HeadlessScreen.<init>:(III)V
         1: .line 45
            return
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  protected void <init>(int, int, int);
    descriptor: (III)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=8, locals=7, args_size=4
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
        start local 1 // int defaultWidth
        start local 2 // int defaultHeight
        start local 3 // int defaultDepth
         0: .line 47
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 50
            aload 0 /* this */
            iload 1 /* defaultWidth */
            putfield com.sun.glass.ui.monocle.HeadlessScreen.width:I
         2: .line 51
            aload 0 /* this */
            iload 2 /* defaultHeight */
            putfield com.sun.glass.ui.monocle.HeadlessScreen.height:I
         3: .line 52
            aload 0 /* this */
            iload 3 /* defaultDepth */
            putfield com.sun.glass.ui.monocle.HeadlessScreen.depth:I
         4: .line 53
            invokedynamic run()Ljava/security/PrivilegedAction;
              Bootstrap: invokestatic java.lang.invoke.LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
                Method arguments:
                  ()Ljava/lang/Object;
                  com/sun/glass/ui/monocle/HeadlessScreen.lambda$0()Ljava/lang/String; (6)
                  ()Ljava/lang/String;
            invokestatic java.security.AccessController.doPrivileged:(Ljava/security/PrivilegedAction;)Ljava/lang/Object;
            checkcast java.lang.String
            astore 4 /* geometry */
        start local 4 // java.lang.String geometry
         5: .line 54
            aload 4 /* geometry */
            ifnull 19
            aload 4 /* geometry */
            bipush 120
            invokevirtual java.lang.String.indexOf:(I)I
            ifle 19
         6: .line 56
            aload 4 /* geometry */
            ldc "x"
            invokevirtual java.lang.String.indexOf:(Ljava/lang/String;)I
            istore 5 /* i */
        start local 5 // int i
         7: .line 57
            aload 0 /* this */
            aload 4 /* geometry */
            iconst_0
            iload 5 /* i */
            invokevirtual java.lang.String.substring:(II)Ljava/lang/String;
            invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
            putfield com.sun.glass.ui.monocle.HeadlessScreen.width:I
         8: .line 58
            aload 4 /* geometry */
            ldc "-"
            iload 5 /* i */
            iconst_1
            iadd
            invokevirtual java.lang.String.indexOf:(Ljava/lang/String;I)I
            istore 6 /* j */
        start local 6 // int j
         9: .line 59
            iload 6 /* j */
            ifle 12
        10: .line 60
            aload 0 /* this */
            aload 4 /* geometry */
            iload 6 /* j */
            iconst_1
            iadd
            invokevirtual java.lang.String.substring:(I)Ljava/lang/String;
            invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
            putfield com.sun.glass.ui.monocle.HeadlessScreen.depth:I
        11: .line 61
            goto 13
        12: .line 62
      StackMap locals: com.sun.glass.ui.monocle.HeadlessScreen int int int java.lang.String int int
      StackMap stack:
            aload 4 /* geometry */
            invokevirtual java.lang.String.length:()I
            istore 6 /* j */
        13: .line 64
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 4 /* geometry */
            iload 5 /* i */
            iconst_1
            iadd
            iload 6 /* j */
            invokevirtual java.lang.String.substring:(II)Ljava/lang/String;
            invokestatic java.lang.Integer.parseInt:(Ljava/lang/String;)I
            putfield com.sun.glass.ui.monocle.HeadlessScreen.height:I
        end local 6 // int j
        end local 5 // int i
        14: .line 65
            goto 19
      StackMap locals: com.sun.glass.ui.monocle.HeadlessScreen int int int java.lang.String
      StackMap stack: java.lang.NumberFormatException
        15: pop
        16: .line 66
            getstatic java.lang.System.err:Ljava/io/PrintStream;
            new java.lang.StringBuilder
            dup
            ldc "Cannot parse geometry string: '"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
        17: .line 67
            aload 4 /* geometry */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc "'"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
        18: .line 66
            invokevirtual java.io.PrintStream.println:(Ljava/lang/String;)V
        19: .line 70
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.width:I
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.height:I
            imul
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.depth:I
            iconst_3
            iushr
            imul
            invokestatic java.nio.ByteBuffer.allocate:(I)Ljava/nio/ByteBuffer;
            astore 5 /* bb */
        start local 5 // java.nio.ByteBuffer bb
        20: .line 71
            aload 5 /* bb */
            invokestatic java.nio.ByteOrder.nativeOrder:()Ljava/nio/ByteOrder;
            invokevirtual java.nio.ByteBuffer.order:(Ljava/nio/ByteOrder;)Ljava/nio/ByteBuffer;
            pop
        21: .line 72
            aload 0 /* this */
            new com.sun.glass.ui.monocle.Framebuffer
            dup
            aload 5 /* bb */
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.width:I
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.height:I
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.depth:I
            iconst_1
            invokespecial com.sun.glass.ui.monocle.Framebuffer.<init>:(Ljava/nio/ByteBuffer;IIIZ)V
            putfield com.sun.glass.ui.monocle.HeadlessScreen.fb:Lcom/sun/glass/ui/monocle/Framebuffer;
        22: .line 73
            return
        end local 5 // java.nio.ByteBuffer bb
        end local 4 // java.lang.String geometry
        end local 3 // int defaultDepth
        end local 2 // int defaultHeight
        end local 1 // int defaultWidth
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot           Name  Signature
            0   23     0           this  Lcom/sun/glass/ui/monocle/HeadlessScreen;
            0   23     1   defaultWidth  I
            0   23     2  defaultHeight  I
            0   23     3   defaultDepth  I
            5   23     4       geometry  Ljava/lang/String;
            7   14     5              i  I
            9   14     6              j  I
           20   23     5             bb  Ljava/nio/ByteBuffer;
      Exception table:
        from    to  target  type
           6    14      15  Class java.lang.NumberFormatException
    MethodParameters:
               Name  Flags
      defaultWidth   
      defaultHeight  
      defaultDepth   

  public int getDepth();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 77
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.depth:I
            ireturn
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  public int getNativeFormat();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 82
            iconst_1
            ireturn
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  public int getWidth();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 87
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.width:I
            ireturn
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  public int getHeight();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 92
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.height:I
            ireturn
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  public float getScale();
    descriptor: ()F
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 97
            fconst_1
            freturn
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  public long getNativeHandle();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 102
            lconst_1
            lreturn
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  public int getDPI();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 107
            bipush 96
            ireturn
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  public void shutdown();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=0, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 112
            return
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  public void uploadPixels(java.nio.Buffer, int, int, int, int, float);
    descriptor: (Ljava/nio/Buffer;IIIIF)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=7, locals=7, args_size=7
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
        start local 1 // java.nio.Buffer b
        start local 2 // int x
        start local 3 // int y
        start local 4 // int width
        start local 5 // int height
        start local 6 // float alpha
         0: .line 118
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.fb:Lcom/sun/glass/ui/monocle/Framebuffer;
            aload 1 /* b */
            iload 2 /* x */
            iload 3 /* y */
            iload 4 /* width */
            iload 5 /* height */
            fload 6 /* alpha */
            invokevirtual com.sun.glass.ui.monocle.Framebuffer.composePixels:(Ljava/nio/Buffer;IIIIF)V
         1: .line 119
            return
        end local 6 // float alpha
        end local 5 // int height
        end local 4 // int width
        end local 3 // int y
        end local 2 // int x
        end local 1 // java.nio.Buffer b
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lcom/sun/glass/ui/monocle/HeadlessScreen;
            0    2     1       b  Ljava/nio/Buffer;
            0    2     2       x  I
            0    2     3       y  I
            0    2     4   width  I
            0    2     5  height  I
            0    2     6   alpha  F
    MethodParameters:
        Name  Flags
      b       
      x       
      y       
      width   
      height  
      alpha   

  public void swapBuffers();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 123
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.fb:Lcom/sun/glass/ui/monocle/Framebuffer;
            invokevirtual com.sun.glass.ui.monocle.Framebuffer.reset:()V
         1: .line 124
            return
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  public java.nio.ByteBuffer getScreenCapture();
    descriptor: ()Ljava/nio/ByteBuffer;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
         0: .line 128
            aload 0 /* this */
            getfield com.sun.glass.ui.monocle.HeadlessScreen.fb:Lcom/sun/glass/ui/monocle/Framebuffer;
            invokevirtual com.sun.glass.ui.monocle.Framebuffer.getBuffer:()Ljava/nio/ByteBuffer;
            areturn
        end local 0 // com.sun.glass.ui.monocle.HeadlessScreen this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/glass/ui/monocle/HeadlessScreen;

  private static java.lang.String lambda$0();
    descriptor: ()Ljava/lang/String;
    flags: (0x100a) ACC_PRIVATE, ACC_STATIC, ACC_SYNTHETIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 53
            ldc "headless.geometry"
            invokestatic java.lang.System.getProperty:(Ljava/lang/String;)Ljava/lang/String;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "HeadlessScreen.java"
InnerClasses:
  public final Lookup = java.lang.invoke.MethodHandles$Lookup of java.lang.invoke.MethodHandles