Java.lang.NullPointerException with ADF Module

Question

Hi,
I am trying to build simple application like "How to Build a Simple UIX Search Form
But my view is
=====================================================
SELECT EmIssue.ID,
EmIssue.INITIATIVE_ID,
EmIssue.NAME,
EmIssue.DESCRIPTION
FROM EM_ISSUE EmIssue
=====================================================
And I added new method at AppModuleImpl
It is
ViewObject Issue = findViewObject("EmIssueView1");
System.out.println("***In setBindVars*****");
String WhereClause = " EmIssue.NAME like '%issue%'";
Issue.setWhereClause(WhereClause);
System.out.println("***END setBindVars*****");
Issue.executeQuery();
=====================================================
And the system raises error with java.lang.NullPointerException at line
String WhereClause = " EmIssue.NAME like '%issue%'";
Could any one tell me where is error in my code
Thanks

Answer 1

It is unlikely that NPE was raised on
String WhereClause = " EmIssue.NAME like '%issue%'";
It's more likely that NPE was thrown from
Issue.setWhereClause(WhereClause);
This would happen if Issue is null, which means that the findViewObject() method couldn't find a VO named "EmIssueView1". Make sure that the VO name is spelled corectly. Names are case sensitive.
Thanks.
Sung