https://openjdk.java.net/ 
public interface jdk.internal.org.jline.reader.MaskingCallback
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: jdk.internal.org.jline.reader.MaskingCallback
  super_class: java.lang.Object
{
  public abstract java.lang.String display(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      line  

  public abstract java.lang.String history(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      line  
}
SourceFile: "MaskingCallback.java"