NoClassDefFoundError in simple test

Question

I want to use moo for dto- entity conversion. But testing it i get this exception

    Exception in thread "main" java.lang.NoClassDefFoundError: org/mvel2/PropertyAccessException
    at com.codiform.moo.configuration.Configuration.getTranslator(Configuration.java:62)
    at com.codiform.moo.session.TranslationSession.getTranslator(TranslationSession.java:131)
    at com.codiform.moo.session.TranslationSession.translate(TranslationSession.java:122)
    at com.codiform.moo.session.TranslationSession.getTranslation(TranslationSession.java:64)
    at com.codiform.moo.curry.Translate.from(Translate.java:63)
    at Main.main(Main.java:15)
Caused by: java.lang.ClassNotFoundException: org.mvel2.PropertyAccessException
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    ... 6 more

Is it because i am doing something wrong? Here is my code:

import com.codiform.moo.curry.Translate;


public class Main {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
Guld guld1=new Guld("string from guld", "muck around", 5);
GuldDTO guld1DTO;
GuldDTO testclassload = new GuldDTO("ruks","halim",3);

guld1DTO=Translate.to(GuldDTO.class).from(guld1);
        //Beca beca1 = new Beca ()

System.out.println(guld1);
System.out.println(guld1DTO);
    }

}

---

public class Guld {

    private String fielk1;
    private String rupo;
    private Integer higs;
    public Guld(){

    }
    public Guld(String fielk1, String rupo, Integer higs) {

        this.fielk1 = fielk1;
        this.rupo = rupo;
        this.higs = higs;
    }
    public String getFielk1() {
        return fielk1;
    }
    public void setFielk1(String fielk1) {
        this.fielk1 = fielk1;
    }
    public String getRupo() {
        return rupo;
    }
    public void setRupo(String rupo) {
        this.rupo = rupo;
    }
    public Integer getHigs() {
        return higs;
    }
    public void setHigs(Integer higs) {
        this.higs = higs;
    }


}

---

public class GuldDTO {
    private String fielk1;
    private String rupo;
    private Integer higs;
    public GuldDTO (){

    }
    public GuldDTO(String fielk1, String rupo, Integer higs) {

        this.fielk1 = fielk1;
        this.rupo = rupo;
        this.higs = higs;
    }
    public String getFielk1() {
        return fielk1;
    }
    public void setFielk1(String fielk1) {
        this.fielk1 = fielk1;
    }
    public String getRupo() {
        return rupo;
    }
    public void setRupo(String rupo) {
        this.rupo = rupo;
    }
    public Integer getHigs() {
        return higs;
    }
    public void setHigs(Integer higs) {
        this.higs = higs;
    }

}

If there are any other details i should provide please tell. [Apparently i cannot get past a stackoverflow filter that checks for the code to text ratio.][Done]

Answer 1

ClassNotFoundException excption means class is missing add library for this class and run again. First check that your apllication has this class or not else add mvel lib.

available at: http://grepcode.com/snapshot/repo1.maven.org/maven2/org.mvel/mvel2/2.1.4.Final/