[Java] .class 버전 확인, javap

C:\>javap -classpath "webapps\ROOT\WEB-INF\classes" -verbose aa.MyServlet
Compiled from "MyServlet.java"
public class aa.MyServlet extends javax.servlet.http.HttpServlet
  SourceFile: "MyServlet.java"
  minor version: 0
  major version: 50