https://source.android.com/ 
public interface android.webkit.JsResult$ResultReceiver
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: android.webkit.JsResult$ResultReceiver
  super_class: java.lang.Object
{
  public abstract void onJsResultComplete(android.webkit.JsResult);
    descriptor: (Landroid/webkit/JsResult;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
        Name  Flags
      result  
}
SourceFile: "JsResult.java"
NestHost: android.webkit.JsResult
InnerClasses:
  public abstract ResultReceiver = android.webkit.JsResult$ResultReceiver of android.webkit.JsResult
    RuntimeVisibleAnnotations: 
      android.annotation.SystemApi()