invoke function from executeAction within the class

Hi,

I am calling other function from executeAction function. I defined my function // BEGIN EXTRA CODE and // END EXTRA CODE .

But i am getting null pointer exception. How to invoke this function from executeAction function.

CODE:

// This file was generated by Mendix Modeler. // // WARNING: Only the following code will be retained when actions are regenerated: // - the import list // - the code between BEGIN USER CODE and END USER CODE // - the code between BEGIN EXTRA CODE and END EXTRA CODE // Other code you write will be lost the next time you deploy the project. // Special characters, e.g., é, ö, à, etc. are supported in comments.

package myfirstmodule.actions;

import java.util.Iterator; import java.util.LinkedList; import java.util.List; import myfirstmodule.proxies.Binder; import myfirstmodule.proxies.Doc; import com.genpact.veeva.api.VeevaAPI; import com.genpact.veeva.apiImpl.VeevaImpl; import com.genpact.veeva.httpUtil.Document; import com.genpact.veeva.httpUtil.Section; import com.mendix.core.CoreException; import com.mendix.systemwideinterfaces.core.IContext; import com.mendix.systemwideinterfaces.core.IMendixObject; import com.mendix.webui.CustomJavaAction;

public class GetBinders extends CustomJavaAction<IMendixObject> {
private String authToken;
private Long biderId;

public GetBinders(IContext context, String authToken, Long biderId) {
    super(context);
    this.authToken = authToken;
    this.biderId = biderId;
}

@Override
public IMendixObject executeAction() throws Exception {
    // BEGIN USER CODE
    // throw new
    // com.mendix.systemwideinterfaces.MendixRuntimeException("Java action was not implemented");
    List<IMendixObject> binders = new LinkedList<IMendixObject>();

    /*
     * Doc doc=new Doc(getContext());
     * 
     * doc.setdoc_Id("12345"); doc.setdoc_name("Doc1");
     * 
     * Binder binder= new Binder(getContext());
     * binder.setbinder_Id("B123456"); binder.setbinder_Name("Binder1");
     * 
     * doc.setDoc_Binder(binder); doc.commit();
     * 
     * 
     * Doc doc1=new Doc(getContext()); doc1.setdoc_Id("12346");
     * doc1.setdoc_name("Doc2");
     * 
     * Binder binder2= new Binder(getContext());
     * binder2.setbinder_Id("B123457"); binder2.setbinder_Name("Binder2");
     * 
     * doc1.setDoc_Binder(binder2); doc1.commit();
     * binders.add(binder.getMendixObject());
     * binders.add(binder2.getMendixObject());
     */
    VeevaAPI api = new VeevaImpl();
    com.genpact.veeva.httpUtil.Binder binder = api.retriveBinder(authToken,
            (long) biderId);

    Binder binder_proxy = new Binder(getContext());
    binder_proxy.setbinder_Id(binder.getId().toString());
    binder_proxy.setbinder_Name(binder.getName__v());

    List<Section> sections = binder.getSections();

    List<Document> documents = null;
    myfirstmodule.proxies.Section sec_proxy = null;
    Doc doc_proxy = null;
    for (Section section : sections) {

        sec_proxy = new myfirstmodule.proxies.Section(getContext());
        sec_proxy.setsec_Name(section.getName__v());
        sec_proxy.setsecId(section.getId());
        sec_proxy.setSection_Binder(binder_proxy);
        sec_proxy.commit();
        documents = section.getDocuments();

        List<Section> sub_sections = section.getSections();

        recursiveSub(sub_sections, sec_proxy);

        for (Document document : documents) {

            doc_proxy = new Doc(getContext());
            doc_proxy.setdoc_Id(document.getDocument_id__v().toString());
            doc_proxy.setdoc_name(document.getName__v());
            doc_proxy.setDoc_Section(sec_proxy);
            doc_proxy.commit();

        }

    }

    /*
     * VeevaAPI api=new VeevaImpl(); List<com.genpact.veeva.httpUtil.Binder>
     * bindersList=api.retriveBinder(authToken);
     * 
     * Binder binder=null; Doc doc=null; List<Document> documents=null;
     * 
     * for (com.genpact.veeva.httpUtil.Binder b : bindersList) {
     * 
     * documents=b.getDocuments();
     * 
     * binder=new Binder(getContext());
     * binder.setbinder_Id(b.getId().toString());
     * binder.setbinder_Name(b.getName__v());
     * 
     * for (Document document : documents) { doc=new Doc(getContext());
     * doc.setdoc_Id(document.getDocument_id__v().toString());
     * doc.setdoc_name(document.getName__v()); doc.setDoc_Binder(binder);
     * doc.commit(); binders.add(binder.getMendixObject()); } }
     */

    return binder_proxy.getMendixObject();
    // END USER CODE
}

/**
 * Returns a string representation of this action
 */
@Override
public String toString() {
    return "GetBinders";
}

// BEGIN EXTRA CODE
public void recursiveSub(List<Section> sub_sections,
        myfirstmodule.proxies.Section sec_proxy) throws CoreException {

    for (Section section : sub_sections) {

        myfirstmodule.proxies.Section subSection_proxy = sec_proxy
                .getSection_SubSection();

        subSection_proxy.setsec_Name(section.getName__v());
        subSection_proxy.setsecId(section.getId());
        subSection_proxy.setSection_SubSection(sec_proxy);
        subSection_proxy.commit();

        List<Document> documents = section.getDocuments();
        Doc doc_proxy = null;
        for (Document document : documents) {
            doc_proxy = new Doc(getContext());
            doc_proxy.setdoc_Id(document.getDocument_id__v().toString());
            doc_proxy.setdoc_name(document.getName__v());
            doc_proxy.setDoc_Section(subSection_proxy);
            doc_proxy.commit();
        }

        List<Section> sections = section.getSections();
        if (section != null && sections.size() > 0) {
            recursiveSub(sections, subSection_proxy);
        }

    }
}
// END EXTRA CODE

}

ERROR:

com.mendix.modules.microflowengine.MicroflowException: com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.NullPointerException
at MyFirstModule.GET_Binders (JavaAction : 'GetBinders')

Advanced stacktrace: at com.mendix.modules.microflowengine.MicroflowUtil.processException(MicroflowUtil.java:143) Caused by: com.mendix.core.CoreException: com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.NullPointerException at com.mendix.core.component.InternalCore.execute(InternalCore.java:385)

Caused by: com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.NullPointerException at com.mendix.core.actionmanagement.ActionManager.executeSync(ActionManager.java:178)

Caused by: com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.NullPointerException at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:36)

Caused by: java.lang.NullPointerException: null at com.genpact.veeva.apiImpl.VeevaImpl.getRecursiveSections(VeevaImpl.java:152) at com.genpact.veeva.apiImpl.VeevaImpl.retriveBinder(VeevaImpl.java:105) at myfirstmodule.actions.GetBinders.executeAction(GetBinders.java:71) at myfirstmodule.actions.GetBinders.executeAction(GetBinders.java:1) at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:49) at com.mendix.core.actionmanagement.CoreAction.doCall(CoreAction.java:260) at com.mendix.core.actionmanagement.CoreAction.call(CoreAction.java:248) at com.mendix.core.actionmanagement.ActionManager$1.execute(ActionManager.java:168) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32) at com.mendix.core.actionmanagement.ActionManager.executeSync(ActionManager.java:174) at com.mendix.core.component.InternalCore.execute(InternalCore.java:377) at com.mendix.modules.microflowengine.actions.actioncall.JavaAction.execute(JavaAction.scala:52) at com.mendix.modules.microflowengine.microflow.impl.MicroflowObject.execute(MicroflowObject.java:47) at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAfterBreakingIfNecessary(MicroflowImpl.java:192) at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAction(MicroflowImpl.java:149) at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:49) at com.mendix.core.actionmanagement.CoreAction.doCall(CoreAction.java:260) at com.mendix.core.actionmanagement.CoreAction.call(CoreAction.java:248) at com.mendix.core.actionmanagement.ActionManager$1.execute(ActionManager.java:168) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32) at com.mendix.core.actionmanagement.ActionManager.executeSync(ActionManager.java:174) at com.mendix.core.component.InternalCore.execute(InternalCore.java:377) at com.mendix.webui.actions.client.ExecuteAction.execute(ExecuteAction.java:135) at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply$mcV$sp(ClientRequestHandler.scala:282) at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply(ClientRequestHandler.scala:277) at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply(ClientRequestHandler.scala:277) at com.mendix.core.session.Worker$$anonfun$receive$3$$anonfun$2$$anon$1.execute(ActionDispatching.scala:144) at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32) at com.mendix.core.session.Worker$$anonfun$receive$3$$anonfun$2.apply(ActionDispatching.scala:146) at scala.util.Try$.apply(Try.scala:192) at com.mendix.core.session.Worker$$anonfun$receive$3.applyOrElse(ActionDispatching.scala:140) at akka.actor.Actor$class.aroundReceive(Actor.scala:465) at com.mendix.core.session.Worker.aroundReceive(ActionDispatching.scala:136) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516) at akka.actor.ActorCell.invoke(ActorCell.scala:487) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238) at akka.dispatch.Mailbox.run(Mailbox.scala:220) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)