https://tomcat.apache.org/: Common code shared by Catalina and Jasper for scanning JARS and processing XML descriptors 
public interface org.apache.tomcat.util.digester.RuleSet
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.apache.tomcat.util.digester.RuleSet
  super_class: java.lang.Object
{
  public abstract void addRuleInstances(org.apache.tomcat.util.digester.Digester);
    descriptor: (Lorg/apache/tomcat/util/digester/Digester;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
          Name  Flags
      digester  
}
SourceFile: "RuleSet.java"