https://tomcat.apache.org/: Tomcat Servlet Engine Core Classes and Standard implementations 
public final class org.apache.catalina.session.PersistentManager extends org.apache.catalina.session.PersistentManagerBase
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: org.apache.catalina.session.PersistentManager
  super_class: org.apache.catalina.session.PersistentManagerBase
{
  private static final java.lang.String name;
    descriptor: Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: "PersistentManager"

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.catalina.session.PersistentManager this
         0: .line 34
            aload 0 /* this */
            invokespecial org.apache.catalina.session.PersistentManagerBase.<init>:()V
            return
        end local 0 // org.apache.catalina.session.PersistentManager this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/catalina/session/PersistentManager;

  public java.lang.String getName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.catalina.session.PersistentManager this
         0: .line 48
            ldc "PersistentManager"
            areturn
        end local 0 // org.apache.catalina.session.PersistentManager this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/catalina/session/PersistentManager;
}
SourceFile: "PersistentManager.java"