https://tomcat.apache.org/: Definition of interfaces shared by Catalina and Jasper 
public interface org.apache.tomcat.InstrumentableClassLoader
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.apache.tomcat.InstrumentableClassLoader
  super_class: java.lang.Object
{
  public abstract void addTransformer(java.lang.instrument.ClassFileTransformer);
    descriptor: (Ljava/lang/instrument/ClassFileTransformer;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
             Name  Flags
      transformer  

  public abstract void removeTransformer(java.lang.instrument.ClassFileTransformer);
    descriptor: (Ljava/lang/instrument/ClassFileTransformer;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
             Name  Flags
      transformer  

  public abstract java.lang.ClassLoader copyWithoutTransformers();
    descriptor: ()Ljava/lang/ClassLoader;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "InstrumentableClassLoader.java"