https://www.graalvm.org/ 
public final class com.oracle.truffle.llvm.nfi.SulongNFI extends com.oracle.truffle.api.TruffleLanguage<com.oracle.truffle.api.TruffleLanguage$Env>
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.llvm.nfi.SulongNFI
  super_class: com.oracle.truffle.api.TruffleLanguage
{
  private com.oracle.truffle.llvm.nfi.SulongNFI$SulongNFIBackend backend;
    descriptor: Lcom/oracle/truffle/llvm/nfi/SulongNFI$SulongNFIBackend;
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$CompilationFinal()

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.llvm.nfi.SulongNFI this
         0: .line 56
            aload 0 /* this */
            invokespecial com.oracle.truffle.api.TruffleLanguage.<init>:()V
            return
        end local 0 // com.oracle.truffle.llvm.nfi.SulongNFI this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/llvm/nfi/SulongNFI;

  com.oracle.truffle.nfi.spi.NFIBackendTools getTools();
    descriptor: ()Lcom/oracle/truffle/nfi/spi/NFIBackendTools;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.llvm.nfi.SulongNFI this
         0: .line 61
            aload 0 /* this */
            getfield com.oracle.truffle.llvm.nfi.SulongNFI.backend:Lcom/oracle/truffle/llvm/nfi/SulongNFI$SulongNFIBackend;
            getfield com.oracle.truffle.llvm.nfi.SulongNFI$SulongNFIBackend.tools:Lcom/oracle/truffle/nfi/spi/NFIBackendTools;
            areturn
        end local 0 // com.oracle.truffle.llvm.nfi.SulongNFI this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/llvm/nfi/SulongNFI;

  protected com.oracle.truffle.api.TruffleLanguage$Env createContext(com.oracle.truffle.api.TruffleLanguage$Env);
    descriptor: (Lcom/oracle/truffle/api/TruffleLanguage$Env;)Lcom/oracle/truffle/api/TruffleLanguage$Env;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // com.oracle.truffle.llvm.nfi.SulongNFI this
        start local 1 // com.oracle.truffle.api.TruffleLanguage$Env env
         0: .line 66
            aload 1 /* env */
            new com.oracle.truffle.llvm.nfi.SulongNFI$1
            dup
            aload 0 /* this */
            invokespecial com.oracle.truffle.llvm.nfi.SulongNFI$1.<init>:(Lcom/oracle/truffle/llvm/nfi/SulongNFI;)V
            invokevirtual com.oracle.truffle.api.TruffleLanguage$Env.registerService:(Ljava/lang/Object;)V
         1: .line 81
            aload 1 /* env */
            areturn
        end local 1 // com.oracle.truffle.api.TruffleLanguage$Env env
        end local 0 // com.oracle.truffle.llvm.nfi.SulongNFI this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/truffle/llvm/nfi/SulongNFI;
            0    2     1   env  Lcom/oracle/truffle/api/TruffleLanguage$Env;
    MethodParameters:
      Name  Flags
      env   

  private static com.oracle.truffle.api.CallTarget wrap(com.oracle.truffle.llvm.nfi.SulongNFI, com.oracle.truffle.api.CallTarget);
    descriptor: (Lcom/oracle/truffle/llvm/nfi/SulongNFI;Lcom/oracle/truffle/api/CallTarget;)Lcom/oracle/truffle/api/CallTarget;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // com.oracle.truffle.llvm.nfi.SulongNFI nfi
        start local 1 // com.oracle.truffle.api.CallTarget target
         0: .line 128
            invokestatic com.oracle.truffle.api.Truffle.getRuntime:()Lcom/oracle/truffle/api/TruffleRuntime;
            new com.oracle.truffle.llvm.nfi.SulongNFI$2
            dup
            aload 0 /* nfi */
            aload 1 /* target */
            invokespecial com.oracle.truffle.llvm.nfi.SulongNFI$2.<init>:(Lcom/oracle/truffle/api/TruffleLanguage;Lcom/oracle/truffle/api/CallTarget;)V
            invokeinterface com.oracle.truffle.api.TruffleRuntime.createCallTarget:(Lcom/oracle/truffle/api/nodes/RootNode;)Lcom/oracle/truffle/api/RootCallTarget;
            areturn
        end local 1 // com.oracle.truffle.api.CallTarget target
        end local 0 // com.oracle.truffle.llvm.nfi.SulongNFI nfi
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0     nfi  Lcom/oracle/truffle/llvm/nfi/SulongNFI;
            0    1     1  target  Lcom/oracle/truffle/api/CallTarget;
    MethodParameters:
        Name  Flags
      nfi     
      target  

  protected com.oracle.truffle.api.CallTarget parse(com.oracle.truffle.api.TruffleLanguage$ParsingRequest);
    descriptor: (Lcom/oracle/truffle/api/TruffleLanguage$ParsingRequest;)Lcom/oracle/truffle/api/CallTarget;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // com.oracle.truffle.llvm.nfi.SulongNFI this
        start local 1 // com.oracle.truffle.api.TruffleLanguage$ParsingRequest request
         0: .line 142
            invokestatic com.oracle.truffle.api.Truffle.getRuntime:()Lcom/oracle/truffle/api/TruffleRuntime;
            new com.oracle.truffle.llvm.nfi.SulongNFI$3
            dup
            aload 0 /* this */
            aload 0 /* this */
            invokespecial com.oracle.truffle.llvm.nfi.SulongNFI$3.<init>:(Lcom/oracle/truffle/llvm/nfi/SulongNFI;Lcom/oracle/truffle/api/TruffleLanguage;)V
            invokeinterface com.oracle.truffle.api.TruffleRuntime.createCallTarget:(Lcom/oracle/truffle/api/nodes/RootNode;)Lcom/oracle/truffle/api/RootCallTarget;
            areturn
        end local 1 // com.oracle.truffle.api.TruffleLanguage$ParsingRequest request
        end local 0 // com.oracle.truffle.llvm.nfi.SulongNFI this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0     this  Lcom/oracle/truffle/llvm/nfi/SulongNFI;
            0    1     1  request  Lcom/oracle/truffle/api/TruffleLanguage$ParsingRequest;
    MethodParameters:
         Name  Flags
      request  

  protected java.lang.Object createContext(com.oracle.truffle.api.TruffleLanguage$Env);
    descriptor: (Lcom/oracle/truffle/api/TruffleLanguage$Env;)Ljava/lang/Object;
    flags: (0x1044) ACC_PROTECTED, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            invokevirtual com.oracle.truffle.llvm.nfi.SulongNFI.createContext:(Lcom/oracle/truffle/api/TruffleLanguage$Env;)Lcom/oracle/truffle/api/TruffleLanguage$Env;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  static java.lang.Object access$1(java.lang.Class);
    descriptor: (Ljava/lang/Class;)Ljava/lang/Object;
    flags: (0x1008) ACC_STATIC, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokestatic com.oracle.truffle.llvm.nfi.SulongNFI.getCurrentContext:(Ljava/lang/Class;)Ljava/lang/Object;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Lcom/oracle/truffle/api/TruffleLanguage<Lcom/oracle/truffle/api/TruffleLanguage$Env;>;
SourceFile: "SulongNFI.java"
NestMembers:
  com.oracle.truffle.llvm.nfi.SulongNFI$1  com.oracle.truffle.llvm.nfi.SulongNFI$2  com.oracle.truffle.llvm.nfi.SulongNFI$3  com.oracle.truffle.llvm.nfi.SulongNFI$SulongNFIBackend
InnerClasses:
  public abstract CompilationFinal = com.oracle.truffle.api.CompilerDirectives$CompilationFinal of com.oracle.truffle.api.CompilerDirectives
  public final ContextPolicy = com.oracle.truffle.api.TruffleLanguage$ContextPolicy of com.oracle.truffle.api.TruffleLanguage
  public final Env = com.oracle.truffle.api.TruffleLanguage$Env of com.oracle.truffle.api.TruffleLanguage
  public final ParsingRequest = com.oracle.truffle.api.TruffleLanguage$ParsingRequest of com.oracle.truffle.api.TruffleLanguage
  public abstract Registration = com.oracle.truffle.api.TruffleLanguage$Registration of com.oracle.truffle.api.TruffleLanguage
  com.oracle.truffle.llvm.nfi.SulongNFI$1
  com.oracle.truffle.llvm.nfi.SulongNFI$2
  com.oracle.truffle.llvm.nfi.SulongNFI$3
  final SulongNFIBackend = com.oracle.truffle.llvm.nfi.SulongNFI$SulongNFIBackend of com.oracle.truffle.llvm.nfi.SulongNFI
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.TruffleLanguage$Registration(id = "internal/nfi-llvm", name = "nfi-llvm", version = "6.0.0", internal = true, interactive = false, services = {Lcom/oracle/truffle/nfi/spi/NFIBackendFactory;}, contextPolicy = com.oracle.truffle.api.TruffleLanguage$ContextPolicy.SHARED:Lcom/oracle/truffle/api/TruffleLanguage$ContextPolicy;)