https://www.graalvm.org/ 
public class com.oracle.truffle.nfi.test.NFITest
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.truffle.nfi.test.NFITest
  super_class: java.lang.Object
{
  protected static final com.oracle.truffle.api.interop.InteropLibrary UNCACHED_INTEROP;
    descriptor: Lcom/oracle/truffle/api/interop/InteropLibrary;
    flags: (0x001c) ACC_PROTECTED, ACC_STATIC, ACC_FINAL

  public static com.oracle.truffle.tck.TruffleRunner$RunWithPolyglotRule runWithPolyglot;
    descriptor: Lcom/oracle/truffle/tck/TruffleRunner$RunWithPolyglotRule;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    RuntimeVisibleAnnotations: 
      org.junit.ClassRule()

  protected static java.lang.Object defaultLibrary;
    descriptor: Ljava/lang/Object;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC

  protected static java.lang.Object testLibrary;
    descriptor: Ljava/lang/Object;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC

  private static com.oracle.truffle.api.CallTarget lookupAndBind;
    descriptor: Lcom/oracle/truffle/api/CallTarget;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC

  static final boolean IS_WINDOWS;
    descriptor: Z
    flags: (0x0018) ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=0, args_size=0
         0: .line 61
            invokestatic com.oracle.truffle.api.interop.InteropLibrary.getFactory:()Lcom/oracle/truffle/api/library/LibraryFactory;
            invokevirtual com.oracle.truffle.api.library.LibraryFactory.getUncached:()Lcom/oracle/truffle/api/library/Library;
            checkcast com.oracle.truffle.api.interop.InteropLibrary
            putstatic com.oracle.truffle.nfi.test.NFITest.UNCACHED_INTEROP:Lcom/oracle/truffle/api/interop/InteropLibrary;
         1: .line 63
            new com.oracle.truffle.tck.TruffleRunner$RunWithPolyglotRule
            dup
            iconst_0
            anewarray java.lang.String
            invokestatic org.graalvm.polyglot.Context.newBuilder:([Ljava/lang/String;)Lorg/graalvm/polyglot/Context$Builder;
            iconst_1
            invokevirtual org.graalvm.polyglot.Context$Builder.allowNativeAccess:(Z)Lorg/graalvm/polyglot/Context$Builder;
            invokespecial com.oracle.truffle.tck.TruffleRunner$RunWithPolyglotRule.<init>:(Lorg/graalvm/polyglot/Context$Builder;)V
            putstatic com.oracle.truffle.nfi.test.NFITest.runWithPolyglot:Lcom/oracle/truffle/tck/TruffleRunner$RunWithPolyglotRule;
         2: .line 173
            ldc "os.name"
            invokestatic java.lang.System.getProperty:(Ljava/lang/String;)Ljava/lang/String;
            ldc "Windows"
            invokevirtual java.lang.String.startsWith:(Ljava/lang/String;)Z
            putstatic com.oracle.truffle.nfi.test.NFITest.IS_WINDOWS:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.nfi.test.NFITest this
         0: .line 59
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.oracle.truffle.nfi.test.NFITest this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/nfi/test/NFITest;

  protected static java.lang.Object loadLibrary(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/Object;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=5, locals=5, args_size=1
        start local 0 // java.lang.String lib
         0: .line 71
            ldc "native.test.backend"
            invokestatic java.lang.System.getProperty:(Ljava/lang/String;)Ljava/lang/String;
            astore 1 /* testBackend */
        start local 1 // java.lang.String testBackend
         1: .line 73
            aload 1 /* testBackend */
            ifnull 4
         2: .line 74
            ldc "with %s %s"
            iconst_2
            anewarray java.lang.Object
            dup
            iconst_0
            aload 1 /* testBackend */
            aastore
            dup
            iconst_1
            aload 0 /* lib */
            aastore
            invokestatic java.lang.String.format:(Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/String;
            astore 2 /* sourceString */
        start local 2 // java.lang.String sourceString
         3: .line 75
            goto 5
        end local 2 // java.lang.String sourceString
         4: .line 76
      StackMap locals: java.lang.String
      StackMap stack:
            aload 0 /* lib */
            astore 2 /* sourceString */
        start local 2 // java.lang.String sourceString
         5: .line 79
      StackMap locals: java.lang.String
      StackMap stack:
            ldc "nfi"
            aload 2 /* sourceString */
            ldc "loadLibrary"
            invokestatic com.oracle.truffle.api.source.Source.newBuilder:(Ljava/lang/String;Ljava/lang/CharSequence;Ljava/lang/String;)Lcom/oracle/truffle/api/source/Source$LiteralBuilder;
            iconst_1
            invokevirtual com.oracle.truffle.api.source.Source$LiteralBuilder.internal:(Z)Lcom/oracle/truffle/api/source/Source$LiteralBuilder;
            invokevirtual com.oracle.truffle.api.source.Source$LiteralBuilder.build:()Lcom/oracle/truffle/api/source/Source;
            astore 3 /* source */
        start local 3 // com.oracle.truffle.api.source.Source source
         6: .line 80
            getstatic com.oracle.truffle.nfi.test.NFITest.runWithPolyglot:Lcom/oracle/truffle/tck/TruffleRunner$RunWithPolyglotRule;
            invokevirtual com.oracle.truffle.tck.TruffleRunner$RunWithPolyglotRule.getTruffleTestEnv:()Lcom/oracle/truffle/api/TruffleLanguage$Env;
            aload 3 /* source */
            iconst_0
            anewarray java.lang.String
            invokevirtual com.oracle.truffle.api.TruffleLanguage$Env.parseInternal:(Lcom/oracle/truffle/api/source/Source;[Ljava/lang/String;)Lcom/oracle/truffle/api/CallTarget;
            astore 4 /* target */
        start local 4 // com.oracle.truffle.api.CallTarget target
         7: .line 81
            aload 4 /* target */
            iconst_0
            anewarray java.lang.Object
            invokeinterface com.oracle.truffle.api.CallTarget.call:([Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 4 // com.oracle.truffle.api.CallTarget target
        end local 3 // com.oracle.truffle.api.source.Source source
        end local 2 // java.lang.String sourceString
        end local 1 // java.lang.String testBackend
        end local 0 // java.lang.String lib
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    8     0           lib  Ljava/lang/String;
            1    8     1   testBackend  Ljava/lang/String;
            3    4     2  sourceString  Ljava/lang/String;
            5    8     2  sourceString  Ljava/lang/String;
            6    8     3        source  Lcom/oracle/truffle/api/source/Source;
            7    8     4        target  Lcom/oracle/truffle/api/CallTarget;
    MethodParameters:
      Name  Flags
      lib   

  public static void loadLibraries();
    descriptor: ()V
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 86
            ldc "default"
            invokestatic com.oracle.truffle.nfi.test.NFITest.loadLibrary:(Ljava/lang/String;)Ljava/lang/Object;
            putstatic com.oracle.truffle.nfi.test.NFITest.defaultLibrary:Ljava/lang/Object;
         1: .line 87
            new java.lang.StringBuilder
            dup
            ldc "load '"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            ldc "native.test.lib"
            invokestatic java.lang.System.getProperty:(Ljava/lang/String;)Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc "'"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokestatic com.oracle.truffle.nfi.test.NFITest.loadLibrary:(Ljava/lang/String;)Ljava/lang/Object;
            putstatic com.oracle.truffle.nfi.test.NFITest.testLibrary:Ljava/lang/Object;
         2: .line 88
            invokestatic com.oracle.truffle.api.Truffle.getRuntime:()Lcom/oracle/truffle/api/TruffleRuntime;
            new com.oracle.truffle.nfi.test.NFITest$LookupAndBindNode
            dup
            invokespecial com.oracle.truffle.nfi.test.NFITest$LookupAndBindNode.<init>:()V
            invokeinterface com.oracle.truffle.api.TruffleRuntime.createCallTarget:(Lcom/oracle/truffle/api/nodes/RootNode;)Lcom/oracle/truffle/api/RootCallTarget;
            putstatic com.oracle.truffle.nfi.test.NFITest.lookupAndBind:Lcom/oracle/truffle/api/CallTarget;
         3: .line 89
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    RuntimeVisibleAnnotations: 
      org.junit.BeforeClass()

  protected static java.lang.Object lookupAndBind(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // java.lang.String name
        start local 1 // java.lang.String signature
         0: .line 170
            getstatic com.oracle.truffle.nfi.test.NFITest.testLibrary:Ljava/lang/Object;
            aload 0 /* name */
            aload 1 /* signature */
            invokestatic com.oracle.truffle.nfi.test.NFITest.lookupAndBind:(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;
            areturn
        end local 1 // java.lang.String signature
        end local 0 // java.lang.String name
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    1     0       name  Ljava/lang/String;
            0    1     1  signature  Ljava/lang/String;
    MethodParameters:
           Name  Flags
      name       
      signature  

  protected static java.lang.Object lookupAndBindDefault(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // java.lang.String name
        start local 1 // java.lang.String signature
         0: .line 176
            getstatic com.oracle.truffle.nfi.test.NFITest.IS_WINDOWS:Z
            ifeq 2
         1: .line 177
            getstatic com.oracle.truffle.nfi.test.NFITest.testLibrary:Ljava/lang/Object;
            new java.lang.StringBuilder
            dup
            ldc "reexport_"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* name */
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            aload 1 /* signature */
            invokestatic com.oracle.truffle.nfi.test.NFITest.lookupAndBind:(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;
            areturn
         2: .line 179
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.truffle.nfi.test.NFITest.defaultLibrary:Ljava/lang/Object;
            aload 0 /* name */
            aload 1 /* signature */
            invokestatic com.oracle.truffle.nfi.test.NFITest.lookupAndBind:(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;
            areturn
        end local 1 // java.lang.String signature
        end local 0 // java.lang.String name
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       name  Ljava/lang/String;
            0    3     1  signature  Ljava/lang/String;
    MethodParameters:
           Name  Flags
      name       
      signature  

  protected static java.lang.Object lookupAndBind(java.lang.Object, java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/Object;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=5, locals=3, args_size=3
        start local 0 // java.lang.Object library
        start local 1 // java.lang.String name
        start local 2 // java.lang.String signature
         0: .line 184
            getstatic com.oracle.truffle.nfi.test.NFITest.lookupAndBind:Lcom/oracle/truffle/api/CallTarget;
            iconst_3
            anewarray java.lang.Object
            dup
            iconst_0
            aload 0 /* library */
            aastore
            dup
            iconst_1
            aload 1 /* name */
            aastore
            dup
            iconst_2
            aload 2 /* signature */
            aastore
            invokeinterface com.oracle.truffle.api.CallTarget.call:([Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 2 // java.lang.String signature
        end local 1 // java.lang.String name
        end local 0 // java.lang.Object library
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    1     0    library  Ljava/lang/Object;
            0    1     1       name  Ljava/lang/String;
            0    1     2  signature  Ljava/lang/String;
    MethodParameters:
           Name  Flags
      library    
      name       
      signature  
}
SourceFile: "NFITest.java"
NestMembers:
  com.oracle.truffle.nfi.test.NFITest$LookupAndBindNode  com.oracle.truffle.nfi.test.NFITest$NFITestRootNode  com.oracle.truffle.nfi.test.NFITest$SendExecuteNode
InnerClasses:
  public final Env = com.oracle.truffle.api.TruffleLanguage$Env of com.oracle.truffle.api.TruffleLanguage
  public final LiteralBuilder = com.oracle.truffle.api.source.Source$LiteralBuilder of com.oracle.truffle.api.source.Source
  private final LookupAndBindNode = com.oracle.truffle.nfi.test.NFITest$LookupAndBindNode of com.oracle.truffle.nfi.test.NFITest
  protected abstract NFITestRootNode = com.oracle.truffle.nfi.test.NFITest$NFITestRootNode of com.oracle.truffle.nfi.test.NFITest
  protected SendExecuteNode = com.oracle.truffle.nfi.test.NFITest$SendExecuteNode of com.oracle.truffle.nfi.test.NFITest
  public final RunWithPolyglotRule = com.oracle.truffle.tck.TruffleRunner$RunWithPolyglotRule of com.oracle.truffle.tck.TruffleRunner
  public final Builder = org.graalvm.polyglot.Context$Builder of org.graalvm.polyglot.Context