public class sun.java2d.SurfaceDataProxy$CountdownTracker implements sun.java2d.StateTracker
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: sun.java2d.SurfaceDataProxy$CountdownTracker
  super_class: java.lang.Object
{
  private int countdown;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  public void <init>(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // sun.java2d.SurfaceDataProxy$CountdownTracker this
        start local 1 // int threshold
         0: .line 143
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 144
            aload 0 /* this */
            iload 1 /* threshold */
            putfield sun.java2d.SurfaceDataProxy$CountdownTracker.countdown:I
         2: .line 145
            return
        end local 1 // int threshold
        end local 0 // sun.java2d.SurfaceDataProxy$CountdownTracker this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lsun/java2d/SurfaceDataProxy$CountdownTracker;
            0    3     1  threshold  I
    MethodParameters:
           Name  Flags
      threshold  

  public synchronized boolean isCurrent();
    descriptor: ()Z
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // sun.java2d.SurfaceDataProxy$CountdownTracker this
         0: .line 148
            aload 0 /* this */
            dup
            getfield sun.java2d.SurfaceDataProxy$CountdownTracker.countdown:I
            iconst_1
            isub
            dup_x1
            putfield sun.java2d.SurfaceDataProxy$CountdownTracker.countdown:I
            iflt 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // sun.java2d.SurfaceDataProxy$CountdownTracker this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lsun/java2d/SurfaceDataProxy$CountdownTracker;
}
SourceFile: "SurfaceDataProxy.java"
NestHost: sun.java2d.SurfaceDataProxy
InnerClasses:
  public CountdownTracker = sun.java2d.SurfaceDataProxy$CountdownTracker of sun.java2d.SurfaceDataProxy