https://www.graalvm.org/ 
final class com.oracle.svm.core.windows.WindowsUtils$Target_java_io_FileDescriptor
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.svm.core.windows.WindowsUtils$Target_java_io_FileDescriptor
  super_class: java.lang.Object
{
  long handle;
    descriptor: J
    flags: (0x0000) 
    RuntimeVisibleAnnotations: 
      com.oracle.svm.core.annotate.Alias()
      com.oracle.svm.core.annotate.RecomputeFieldValue(kind = com.oracle.svm.core.annotate.RecomputeFieldValue$Kind.Custom:Lcom/oracle/svm/core/annotate/RecomputeFieldValue$Kind;, declClass = Lcom/oracle/svm/core/windows/WindowsUtils$Target_java_io_FileDescriptor$InvalidHandleValueComputer;)

  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.svm.core.windows.WindowsUtils$Target_java_io_FileDescriptor this
         0: .line 68
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.oracle.svm.core.windows.WindowsUtils$Target_java_io_FileDescriptor this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/svm/core/windows/WindowsUtils$Target_java_io_FileDescriptor;
}
SourceFile: "WindowsUtils.java"
NestHost: com.oracle.svm.core.windows.WindowsUtils
InnerClasses:
  public final Kind = com.oracle.svm.core.annotate.RecomputeFieldValue$Kind of com.oracle.svm.core.annotate.RecomputeFieldValue
  private final Target_java_io_FileDescriptor = com.oracle.svm.core.windows.WindowsUtils$Target_java_io_FileDescriptor of com.oracle.svm.core.windows.WindowsUtils
  InvalidHandleValueComputer = com.oracle.svm.core.windows.WindowsUtils$Target_java_io_FileDescriptor$InvalidHandleValueComputer of com.oracle.svm.core.windows.WindowsUtils$Target_java_io_FileDescriptor
    RuntimeVisibleAnnotations: 
      com.oracle.svm.core.annotate.TargetClass(value = Ljava/io/FileDescriptor;)