Exception occurs!! when button click

Question

Hi.,
I am using jdev 11.1.5
I had created a jspx page in the master from and table detail
I had draaged a af:button and named it as post
In the action listner i had wrote the code as
    public void cb5_actionListener(ActionEvent actionEvent) {
                   BindingContainer bc = this.getBindings();
            OperationBinding op = bc.getOperationBinding("recintGlJrnlHd");
            Object r = op.execute();
In the AMimpl Method i had write the code as
    public void recintGlJrnlHd(List selectedRowIndexs){
        ViewObjectImpl vo = this.getGlJrnlHd1();
        Row newRow = vo.createRow();
        ViewObjectImpl c1 = this.getCursorC1_1();
        Row cr1 = c1.getCurrentRow();
        newRow.setAttribute("GjhBu", cr1.getAttribute("GrhBu"));
        newRow.setAttribute("GjhPlant", cr1.getAttribute("GrhPlant"));
        newRow.setAttribute("GjhJrnlType", cr1.getAttribute("GrvlJrnlType"));
        newRow.setAttribute("GjhJrnlNo", cr1.getAttribute("GrvlJrnlNo"));
        newRow.setAttribute("GjhJrnlSfx", cr1.getAttribute("GrhJrnlSfx"));
        newRow.setAttribute("GjhJrnlDate", cr1.getAttribute("GrhJrnlDate"));
        newRow.setAttribute("GjhYear", cr1.getAttribute("GrvlYear"));
        newRow.setAttribute("GjhPeriod", cr1.getAttribute("GrvlPeriod"));
        newRow.setAttribute("GjhDesc", cr1.getAttribute("GrhDesc"));
        newRow.setAttribute("GjhAppl", "GLM");
        newRow.setAttribute("GjhReversal", "N");
        newRow.setAttribute("GjhStatus","N");
        newRow.setAttribute("GjhCreBy", "NULL");
       newRow.setAttribute("GjhCreDate", "NULL");
        newRow.setAttribute("GjhUpdBy", "NULL");
        newRow.setAttribute("GjhUpdDate", "NULL");
        this.getTransaction().commit();
    }when i press the button an Null Pointer EXception occurs
at
Object r = op.execute();can anyone help me to resolve this issue

Answer 1

did you add recintGlJrnlHd method into bindings section in your page definition file?