java - jruby annotation method not getting called -

i have jar named test.jar contains following java classes:

test.java

package test; import java.lang.reflect.method; public class test {  public static void yoyo(object o) {      method[] methods = o.getclass().getmethods();      (method method : methods) {         canrun annos = method.getannotation(canrun.class);         if (annos != null) {             try {                 method.invoke(o);                         } catch (exception e) {                 e.printstacktrace();             }         }     } } } 

and interface canrun.java

package test; import java.lang.annotation.elementtype; import java.lang.annotation.retention; import java.lang.annotation.retentionpolicy; import java.lang.annotation.target; @target(value = elementtype.method) @retention(value = retentionpolicy.runtime) public @interface canrun { }  

and ruby file main.rb

require 'java' require 'test.jar' java_import java::test.test  class main   def run     test.yoyo(main.new)   end    java_annotation('canrun')   def onhi()     puts "inside on hi"   end end  app = main.new app.run 

and running following command: jruby main.rb

but there no output.

basically,what trying is, calling yoyo() of test.java main.rb , passing object of main in yoyo().then yoyo() in test.java analyze functions of main.rb having annotation canrun , if found call them, in our case onhi should called. checked object passing in yoyo() not null. problem facing onhi not getting called.

i tried lot of things nothing helped.

am using annotation in rb file or please suggest other way.

you annotation not in default package (nor imported) instead :

java_annotation 'test.canrun'

or

java_import "test.canrun" java_annotation :canrun