https://www.graalvm.org/ 
class com.oracle.svm.truffle.nfi.NativeAPIImpl$EnterNativeTruffleContextPrologue
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.svm.truffle.nfi.NativeAPIImpl$EnterNativeTruffleContextPrologue
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.svm.truffle.nfi.NativeAPIImpl$EnterNativeTruffleContextPrologue this
         0: .line 176
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.oracle.svm.truffle.nfi.NativeAPIImpl$EnterNativeTruffleContextPrologue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/svm/truffle/nfi/NativeAPIImpl$EnterNativeTruffleContextPrologue;

  static void enter(com.oracle.svm.truffle.nfi.NativeAPI$NativeTruffleContext);
    descriptor: (Lcom/oracle/svm/truffle/nfi/NativeAPI$NativeTruffleContext;)V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.svm.truffle.nfi.NativeAPI$NativeTruffleContext context
         0: .line 178
            aload 0 /* context */
            invokeinterface com.oracle.svm.truffle.nfi.NativeAPI$NativeTruffleContext.isolate:()Lorg/graalvm/nativeimage/Isolate;
            invokestatic com.oracle.svm.core.c.function.CEntryPointActions.enterIsolate:(Lorg/graalvm/nativeimage/Isolate;)I
            pop
         1: .line 179
            return
        end local 0 // com.oracle.svm.truffle.nfi.NativeAPI$NativeTruffleContext context
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0  context  Lcom/oracle/svm/truffle/nfi/NativeAPI$NativeTruffleContext;
    MethodParameters:
         Name  Flags
      context  
}
SourceFile: "NativeAPIImpl.java"
NestHost: com.oracle.svm.truffle.nfi.NativeAPIImpl
InnerClasses:
  public abstract NativeTruffleContext = com.oracle.svm.truffle.nfi.NativeAPI$NativeTruffleContext of com.oracle.svm.truffle.nfi.NativeAPI
  EnterNativeTruffleContextPrologue = com.oracle.svm.truffle.nfi.NativeAPIImpl$EnterNativeTruffleContextPrologue of com.oracle.svm.truffle.nfi.NativeAPIImpl