https://www.graalvm.org/ 
class org.graalvm.polyglot.nativeapi.PolyglotNativeAPIEntryPoints$Poly
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.graalvm.polyglot.nativeapi.PolyglotNativeAPIEntryPoints$Poly
  super_class: java.lang.Object
{
  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.graalvm.polyglot.nativeapi.PolyglotNativeAPIEntryPoints$Poly this
         0: .line 163
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.graalvm.polyglot.nativeapi.PolyglotNativeAPIEntryPoints$Poly this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/polyglot/nativeapi/PolyglotNativeAPIEntryPoints$Poly;

  static native int ok();
    descriptor: ()I
    flags: (0x0108) ACC_STATIC, ACC_NATIVE
    RuntimeVisibleAnnotations: 
      org.graalvm.nativeimage.c.constant.CConstant(value = "poly_ok")

  static native int generic_failure();
    descriptor: ()I
    flags: (0x0108) ACC_STATIC, ACC_NATIVE
    RuntimeVisibleAnnotations: 
      org.graalvm.nativeimage.c.constant.CConstant(value = "poly_generic_failure")
}
SourceFile: "PolyglotNativeAPIEntryPoints.java"
NestHost: org.graalvm.polyglot.nativeapi.PolyglotNativeAPIEntryPoints
InnerClasses:
  private Poly = org.graalvm.polyglot.nativeapi.PolyglotNativeAPIEntryPoints$Poly of org.graalvm.polyglot.nativeapi.PolyglotNativeAPIEntryPoints
    RuntimeVisibleAnnotations: 
      org.graalvm.nativeimage.c.CContext(value = Lorg/graalvm/polyglot/nativeapi/PolyglotNativeAPICContext;)