https://github.com/oracle/graal: GraalVM is an ecosystem for compiling and running applications written in multiple languages. GraalVM removes the isolation between programming languages and enables interoperability in a shared runtime. 
public final class org.graalvm.nativeimage.c.function.CEntryPoint$Builtin extends java.lang.Enum<org.graalvm.nativeimage.c.function.CEntryPoint$Builtin>
  minor version: 0
  major version: 59
  flags: flags: (0x4031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER, ACC_ANNOTATION
  this_class: org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
  super_class: java.lang.Enum
{
  public static final org.graalvm.nativeimage.c.function.CEntryPoint$Builtin NO_BUILTIN;
    descriptor: Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  public static final org.graalvm.nativeimage.c.function.CEntryPoint$Builtin CREATE_ISOLATE;
    descriptor: Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  public static final org.graalvm.nativeimage.c.function.CEntryPoint$Builtin ATTACH_THREAD;
    descriptor: Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  public static final org.graalvm.nativeimage.c.function.CEntryPoint$Builtin GET_CURRENT_THREAD;
    descriptor: Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  public static final org.graalvm.nativeimage.c.function.CEntryPoint$Builtin GET_ISOLATE;
    descriptor: Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  public static final org.graalvm.nativeimage.c.function.CEntryPoint$Builtin DETACH_THREAD;
    descriptor: Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  public static final org.graalvm.nativeimage.c.function.CEntryPoint$Builtin TEAR_DOWN_ISOLATE;
    descriptor: Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    flags: (0x4019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL, ACC_ANNOTATION

  private static final org.graalvm.nativeimage.c.function.CEntryPoint$Builtin[] ENUM$VALUES;
    descriptor: [Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    flags: (0x101a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=0, args_size=0
         0: .line 144
            new org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
            dup
            ldc "NO_BUILTIN"
            iconst_0
            invokespecial org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.<init>:(Ljava/lang/String;I)V
         1: .line 149
            putstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.NO_BUILTIN:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
         2: .line 151
            new org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
            dup
            ldc "CREATE_ISOLATE"
            iconst_1
            invokespecial org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.<init>:(Ljava/lang/String;I)V
         3: .line 158
            putstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.CREATE_ISOLATE:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
         4: .line 160
            new org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
            dup
            ldc "ATTACH_THREAD"
            iconst_2
            invokespecial org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.<init>:(Ljava/lang/String;I)V
         5: .line 168
            putstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.ATTACH_THREAD:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
         6: .line 170
            new org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
            dup
            ldc "GET_CURRENT_THREAD"
            iconst_3
            invokespecial org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.<init>:(Ljava/lang/String;I)V
         7: .line 179
            putstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.GET_CURRENT_THREAD:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
         8: .line 181
            new org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
            dup
            ldc "GET_ISOLATE"
            iconst_4
            invokespecial org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.<init>:(Ljava/lang/String;I)V
         9: .line 188
            putstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.GET_ISOLATE:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
        10: .line 190
            new org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
            dup
            ldc "DETACH_THREAD"
            iconst_5
            invokespecial org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.<init>:(Ljava/lang/String;I)V
        11: .line 198
            putstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.DETACH_THREAD:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
        12: .line 200
            new org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
            dup
            ldc "TEAR_DOWN_ISOLATE"
            bipush 6
            invokespecial org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.<init>:(Ljava/lang/String;I)V
        13: .line 208
            putstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.TEAR_DOWN_ISOLATE:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
        14: .line 143
            bipush 7
            anewarray org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
            dup
            iconst_0
            getstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.NO_BUILTIN:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
            aastore
            dup
            iconst_1
            getstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.CREATE_ISOLATE:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
            aastore
            dup
            iconst_2
            getstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.ATTACH_THREAD:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
            aastore
            dup
            iconst_3
            getstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.GET_CURRENT_THREAD:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
            aastore
            dup
            iconst_4
            getstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.GET_ISOLATE:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
            aastore
            dup
            iconst_5
            getstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.DETACH_THREAD:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
            aastore
            dup
            bipush 6
            getstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.TEAR_DOWN_ISOLATE:Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
            aastore
            putstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.ENUM$VALUES:[Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>(java.lang.String, int);
    descriptor: (Ljava/lang/String;I)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.graalvm.nativeimage.c.function.CEntryPoint$Builtin this
         0: .line 143
            aload 0 /* this */
            aload 1
            iload 2
            invokespecial java.lang.Enum.<init>:(Ljava/lang/String;I)V
            return
        end local 0 // org.graalvm.nativeimage.c.function.CEntryPoint$Builtin this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    MethodParameters:
               Name  Flags
      $enum$name     
      $enum$ordinal  

  public static org.graalvm.nativeimage.c.function.CEntryPoint$Builtin[] values();
    descriptor: ()[Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=3, args_size=0
         0: .line 1
            getstatic org.graalvm.nativeimage.c.function.CEntryPoint$Builtin.ENUM$VALUES:[Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
            dup
            astore 0
            iconst_0
            aload 0
            arraylength
            dup
            istore 1
            anewarray org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
            dup
            astore 2
            iconst_0
            iload 1
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
            aload 2
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public static org.graalvm.nativeimage.c.function.CEntryPoint$Builtin valueOf(java.lang.String);
    descriptor: (Ljava/lang/String;)Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
         0: .line 1
            ldc Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;
            aload 0
            invokestatic java.lang.Enum.valueOf:(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/Enum;
            checkcast org.graalvm.nativeimage.c.function.CEntryPoint$Builtin
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    MethodParameters:
      Name  Flags
      name  
}
Signature: Ljava/lang/Enum<Lorg/graalvm/nativeimage/c/function/CEntryPoint$Builtin;>;
SourceFile: "CEntryPoint.java"
NestHost: org.graalvm.nativeimage.c.function.CEntryPoint
InnerClasses:
  public final Builtin = org.graalvm.nativeimage.c.function.CEntryPoint$Builtin of org.graalvm.nativeimage.c.function.CEntryPoint