https://tomcat.apache.org/: Interface code to the native connector 
public interface org.apache.tomcat.jni.PasswordCallback
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.apache.tomcat.jni.PasswordCallback
  super_class: java.lang.Object
{
  public abstract java.lang.String callback(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
        Name  Flags
      prompt  
}
SourceFile: "PasswordCallback.java"