How to initialize a WebBean in a TimerTask class

Question

I have a scheduler, it will trigger a task by using the class "java.util.Timer" within a specific period. The timer can schedule a task that extends the class "TimerTask". The scheduled task should initialize a web-bean called as "Task1" to active the user. (The source code is attached)
My problem is that when I initialize the web-bean "Task1", the error occurs. I catched the exception message, but it is NULL.
I want to know that it is possible to initialize the web-bean in a class that extends TimerTask? If yes, how?I have done a test that is I can initialize a web-bean in simple java class by passing the page context to it. In this case, I have passed the page context to the class "ScheduleTask", but failed.
Thank you in the advance!
public class ScheduleTask extends TimerTask {
PageContext pageContext = null;
public ScheduleTask (PageContext page) {
this.pageContext = page;
public void run() {
try {
doTasks(pageContext);
} catch (Exception e){
throw new RuntimeException(e.getMessage());
public void doTasks(PageContext page) {
Task1 t1= new Task1();
t1.initialize(page, "Task_AppModule.TaskVO");
t1.setReleaseApplicationResources(true);
t1.activateUser();
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Answer 1

Any JDeveloper team member can solve my problem.
Because our system will be deployed for the production soon, this is the critical problem in my part. I hope I can get the help from you. Thank you very much!