https://openjdk.java.net/ 
public interface org.omg.CORBA.portable.BoxedValueHelper
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.omg.CORBA.portable.BoxedValueHelper
  super_class: java.lang.Object
{
  public abstract java.io.Serializable read_value(org.omg.CORBA.portable.InputStream);
    descriptor: (Lorg/omg/CORBA/portable/InputStream;)Ljava/io/Serializable;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      is    

  public abstract void write_value(org.omg.CORBA.portable.OutputStream, java.io.Serializable);
    descriptor: (Lorg/omg/CORBA/portable/OutputStream;Ljava/io/Serializable;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
       Name  Flags
      os     
      value  

  public abstract java.lang.String get_id();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "BoxedValueHelper.java"