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Topics#ApexQuestion de Pooja Nekkalapudi
Pooja Nekkalapudi (William Blair and Company) a posé une question dans #Apex
3 févr. 2016, 21:00

how to solve System.NullPointerException: Attempt to de-reference a null object Class.UserAccessDetailsController.getObjectLabels

 /*error: System.NullPointerException: Attempt to de-reference a null object 

Class.UserAccessDetailsController.getObjectLabels: line 290, column 1

line 290 is this describe.get(op.SObjectType).getDescribe().getLabel()));

*/

 public List<NameLabel> getObjectLabels() {

        if (null == xObjectLabels) {

            List<NameLabel> result = new List<NameLabel>();

            Map<String,SObjectType> describe = Schema.getGlobalDescribe();

            

            for (ObjectPermissions op : [SELECT SObjectType FROM ObjectPermissions 

                                          WHERE Parent.Profile.Name = 'System Administrator'  ]) {

                result.add(new NameLabel(op.SObjectType, 

                                         describe.get(op.SObjectType).getDescribe().getLabel()));

            }

            result.sort();

            xObjectLabels = result;

        }

        return xObjectLabels;

    }
8 réponses
  1. Sumit Kumar Singh (Paul Hartmann)
    4 févr. 2016, 03:52
    Hello Pooja, 

    Pls try this, it should work fine for you - 

    for (ObjectPermissions op : [SELECT SObjectType FROM ObjectPermissions WHERE Parent.Profile.Name = 'System Administrator']) {
        if(op.SObjectType!=null && describe.get(op.SObjectType)!=null){
        	result.add(new NameLabel(op.SObjectType, describe.get(op.SObjectType).getDescribe().getLabel()));    
        }  
    }

    I checked - 

    describe.get(op.SObjectType) is coming null.

    Thanks, 

    Sumit Kumar Singh
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