https://spring.io/projects/spring-boot: Spring Boot (Pivotal Software, Inc.) 
public interface org.springframework.boot.Banner
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.springframework.boot.Banner
  super_class: java.lang.Object
{
  public abstract void printBanner(org.springframework.core.env.Environment, java.lang.Class<?>, java.io.PrintStream);
    descriptor: (Lorg/springframework/core/env/Environment;Ljava/lang/Class;Ljava/io/PrintStream;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: (Lorg/springframework/core/env/Environment;Ljava/lang/Class<*>;Ljava/io/PrintStream;)V
    MethodParameters:
             Name  Flags
      environment  
      sourceClass  
      out          
}
SourceFile: "Banner.java"
NestMembers:
  org.springframework.boot.Banner$Mode
InnerClasses:
  public final Mode = org.springframework.boot.Banner$Mode of org.springframework.boot.Banner
    RuntimeVisibleAnnotations: 
      java.lang.FunctionalInterface()