java - Can't get @override annotation from method -


when method class instance, , want @override annotation. method has not annotation. impossible @override annotation?

code below.

package com.test;  import java.lang.annotation.annotation; import java.lang.reflect.method;  import javax.annotation.resource;  public class reflectiontest {      public static void main(string[] args) throws exception {         childhoge childhoge = new childhoge();         method method = childhoge.getclass().getmethod("init");         (annotation s : method.getannotations()) {             system.out.println(s);         }         method method2 = childhoge.getclass().getmethod("a");         (annotation : method2.getannotations()) {             system.out.println(a); // =>@javax.annotation.resource(mappedname=, shareable=true, type=class java.lang.object, authenticationtype=container, lookup=, description=, name=)          }     }  }  class superhoge {     public void init() {      } }   class childhoge extends superhoge {     @override     public void init() {         super.init();     }     @resource     public void a() {      } } 

@retention(retentionpolicy.source) public @interface override { }

it has retentionpolicy.source discarded compiler, means cannot obtained @ runtime. can see described in jls 9.6.4.2.

if annotation corresponds type t, , t has (meta-)annotation m corresponds java.lang.annotation.retention, then:

  • if m has element value java.lang.annotation.retentionpolicy.source, java compiler must ensure not present in binary representation of class or interface in appears.

and javadoc retentionpolicy describes this:

public enum retentionpolicy {     /**      * annotations discarded compiler.      */     source,     ...

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