https://tomcat.apache.org/: javax.servlet package 
public interface javax.servlet.FilterConfig
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: javax.servlet.FilterConfig
  super_class: java.lang.Object
{
  public abstract java.lang.String getFilterName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract javax.servlet.ServletContext getServletContext();
    descriptor: ()Ljavax/servlet/ServletContext;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract java.lang.String getInitParameter(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      name  

  public abstract java.util.Enumeration<java.lang.String> getInitParameterNames();
    descriptor: ()Ljava/util/Enumeration;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/Enumeration<Ljava/lang/String;>;
}
SourceFile: "FilterConfig.java"