java - Robot Framework Adding Keywords -

i having issue picking custom keywords java using annotation library. issue i'm facing getting following error when executing jybot:

imported library 'org.robotframework.javalib.library.classpathlibrary' contains no keywords

imported library 'org.robotframework.javalib.library.annotationlibrary' contains no keywords

no keyword name 'create empty stack' found jybot command used: jybot example.txt.below actual test case , libraries called test case:

*** settings *** library    org.robotframework.javalib.library.classpathlibrary     org/robotframework/example/keyword/**.class library    org.robotframework.javalib.library.annotationlibrary    org/robotframework/example/keyword/**.class   *** test cases ***  stack example       create empty stack       add element java       add element c++       remove last element       last element should 

below library written incorporate keyword written incorporate stack keywords:

package org.robotframework.example.keyword;  import org.robotframework.javalib.annotation.robotkeyword; import org.robotframework.javalib.annotation.robotkeywords; import org.robotframework.javalib.library.annotationlibrary;  /**  *   */      /**      *       */     @robotkeywords      public class stackkeyword extends annotationlibrary {         /** means same instance of class used throughout          *  lifecycle of robot framework test execution.          */         public static final string robot_library_scope = "global";          public stackkeyword() {             super("org/robotframework/example/keyword/**/*.class");         }         //</editor-fold>         /** functionality tested */         private java.util.stack<string> teststack;          /**          * keyword-method create empty stack.          */         @robotkeyword         public void createanemptystack() {             teststack = new java.util.stack<string>();         }           /**          * keyword-method add element stack.          * @param element element          */         @robotkeyword         public void addanelement(string element) {             teststack.push(element);         }          /**          * keyword-method remove last element stack.          */         @robotkeyword         public void removelastelement() {             teststack.pop();         }          /**          * keyword-method search element position.          * @param element element          * @param pos expected position          */         @robotkeyword         public void elementshouldbeatposition(string element, int pos)                 throws exception {             if (teststack.search(element) != pos) {                 throw new exception("wrong position: " + teststack.search(element));             }         }          /**          * keyword-method check last element in stack.          * @param result expected resulting element          */         @robotkeyword         public void thelastelementshouldbe(string result) throws exception {             string element = teststack.pop();             if (!result.equals(element)) {                 throw new exception("wrong element: " + element);             }         }        } 

add class extends annotationlibrary , implement default constructor.

public class demolibrary extends annotationlibrary {      public demolibrary () {         super("org/robotframework/example/**/*.class");     } } 

put keywords class under package org.robotframework.example.keywords

in example.txt file put only;

library           org.robotframework.example.demolibrary 

be sure have demolibrary @ path.