https://www.graalvm.org/ 
final class com.oracle.truffle.nfi.NFIType
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.nfi.NFIType
  super_class: java.lang.Object
{
  final com.oracle.truffle.nfi.NFIType$TypeCachedState cachedState;
    descriptor: Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
    flags: (0x0010) ACC_FINAL

  final java.lang.Object backendType;
    descriptor: Ljava/lang/Object;
    flags: (0x0010) ACC_FINAL

  final java.lang.Object runtimeData;
    descriptor: Ljava/lang/Object;
    flags: (0x0010) ACC_FINAL

  static final com.oracle.truffle.nfi.NFIType$TypeCachedState SIMPLE;
    descriptor: Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  static final com.oracle.truffle.nfi.NFIType$TypeCachedState CLOSURE;
    descriptor: Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  static final com.oracle.truffle.nfi.NFIType$TypeCachedState INJECTED;
    descriptor: Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 77
            new com.oracle.truffle.nfi.NFIType$SimpleTypeCachedState
            dup
            invokespecial com.oracle.truffle.nfi.NFIType$SimpleTypeCachedState.<init>:()V
            putstatic com.oracle.truffle.nfi.NFIType.SIMPLE:Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
         1: .line 78
            new com.oracle.truffle.nfi.NFIType$ClosureTypeCachedState
            dup
            invokespecial com.oracle.truffle.nfi.NFIType$ClosureTypeCachedState.<init>:()V
            putstatic com.oracle.truffle.nfi.NFIType.CLOSURE:Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
         2: .line 79
            new com.oracle.truffle.nfi.NFIType$InjectedTypeCachedState
            dup
            invokespecial com.oracle.truffle.nfi.NFIType$InjectedTypeCachedState.<init>:()V
            putstatic com.oracle.truffle.nfi.NFIType.INJECTED:Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(com.oracle.truffle.nfi.NFIType$TypeCachedState, java.lang.Object);
    descriptor: (Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;Ljava/lang/Object;)V
    flags: (0x0000) 
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // com.oracle.truffle.nfi.NFIType this
        start local 1 // com.oracle.truffle.nfi.NFIType$TypeCachedState cachedState
        start local 2 // java.lang.Object backendType
         0: .line 59
            aload 0 /* this */
            aload 1 /* cachedState */
            aload 2 /* backendType */
            aconst_null
            invokespecial com.oracle.truffle.nfi.NFIType.<init>:(Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;Ljava/lang/Object;Ljava/lang/Object;)V
         1: .line 60
            return
        end local 2 // java.lang.Object backendType
        end local 1 // com.oracle.truffle.nfi.NFIType$TypeCachedState cachedState
        end local 0 // com.oracle.truffle.nfi.NFIType this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    2     0         this  Lcom/oracle/truffle/nfi/NFIType;
            0    2     1  cachedState  Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
            0    2     2  backendType  Ljava/lang/Object;
    MethodParameters:
             Name  Flags
      cachedState  
      backendType  

  void <init>(com.oracle.truffle.nfi.NFIType$TypeCachedState, java.lang.Object, java.lang.Object);
    descriptor: (Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;Ljava/lang/Object;Ljava/lang/Object;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // com.oracle.truffle.nfi.NFIType this
        start local 1 // com.oracle.truffle.nfi.NFIType$TypeCachedState cachedState
        start local 2 // java.lang.Object backendType
        start local 3 // java.lang.Object runtimeData
         0: .line 62
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 63
            aload 0 /* this */
            aload 1 /* cachedState */
            putfield com.oracle.truffle.nfi.NFIType.cachedState:Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
         2: .line 64
            aload 0 /* this */
            aload 2 /* backendType */
            putfield com.oracle.truffle.nfi.NFIType.backendType:Ljava/lang/Object;
         3: .line 65
            aload 0 /* this */
            aload 3 /* runtimeData */
            putfield com.oracle.truffle.nfi.NFIType.runtimeData:Ljava/lang/Object;
         4: .line 66
            return
        end local 3 // java.lang.Object runtimeData
        end local 2 // java.lang.Object backendType
        end local 1 // com.oracle.truffle.nfi.NFIType$TypeCachedState cachedState
        end local 0 // com.oracle.truffle.nfi.NFIType this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    5     0         this  Lcom/oracle/truffle/nfi/NFIType;
            0    5     1  cachedState  Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
            0    5     2  backendType  Ljava/lang/Object;
            0    5     3  runtimeData  Ljava/lang/Object;
    MethodParameters:
             Name  Flags
      cachedState  
      backendType  
      runtimeData  
}
SourceFile: "NFIType.java"
NestMembers:
  com.oracle.truffle.nfi.NFIType$ClosureTypeCachedState  com.oracle.truffle.nfi.NFIType$ClosureTypeCachedState$ConvertFromNative  com.oracle.truffle.nfi.NFIType$ClosureTypeCachedState$ConvertToNative  com.oracle.truffle.nfi.NFIType$InjectedTypeCachedState  com.oracle.truffle.nfi.NFIType$SimpleTypeCachedState  com.oracle.truffle.nfi.NFIType$TypeCachedState
InnerClasses:
  final ClosureTypeCachedState = com.oracle.truffle.nfi.NFIType$ClosureTypeCachedState of com.oracle.truffle.nfi.NFIType
  final InjectedTypeCachedState = com.oracle.truffle.nfi.NFIType$InjectedTypeCachedState of com.oracle.truffle.nfi.NFIType
  final SimpleTypeCachedState = com.oracle.truffle.nfi.NFIType$SimpleTypeCachedState of com.oracle.truffle.nfi.NFIType
  abstract TypeCachedState = com.oracle.truffle.nfi.NFIType$TypeCachedState of com.oracle.truffle.nfi.NFIType