Hey Guys,

Having some issues with an APEX code that I have deployed.

When attempting to delete a task I am getting the following error:

There were custom validation error(s) encountered while saving the affected record(s). The first validation error encountered was "Apex trigger qc.TaskTrigger caused an unexpected exception, contact your administrator: qc.TaskTrigger: execution of BeforeDelete caused by: System.NullPointerException: Attempt to de-reference a null object: (qc)". 

My APEX Trigger:

trigger ActivityAccountDetails on Task (before insert, before update) {
// Goal: Find the Account Status of the Account that a task is related to
// and update the Account_Status__c field on the task object with the value

// If related to an Account, query to find out the Account Status

// Create collection of tasks that are related to an Acct (where the Acct is listed only once)
	Set<Id> acctIds = new Set<Id>();
	for(Task t : trigger.new){
		String wId = t.WhatId;
		if(wId!=null && wId.startsWith('001') && !acctIds.contains(t.WhatId)){
			acctIds.add(t.WhatId);
		}
	}
	// Pull in acct ids and related field to populate task record
	List<Account> taskAcct = [Select Id, Account_Status__c from Account where Id in :acctIds];
	Map<Id, Account> acctMap = new Map<Id, Account>();
	for(Account a : taskAcct){
		acctMap.put(a.Id,a);
	}
	// Update custom task field with custom opp field
	for(Task t : trigger.new){
		String wId = t.WhatId;
		if(wId!=null && wId.startswith('001')){
			Account thisAcct = acctMap.get(t.WhatId);
			if(thisAcct!=null){t.Account_Status__c = thisAcct.Account_Status__c;} 
		}
	}

 Test Class:

@isTest
private class MyTest {

    static testMethod void myUnitTest() {
        // TO DO: implement unit test
        Account testAccount = new Account(name='Test Company Name');
        insert testAccount;
        
        testAccount.Account_Status__c='Prospect: Open';
        update testAccount;
              
        Task testTask = new Task(Subject= 'Test Task', WhatID = testAccount.Id);
        
       
        Account accountInfo = [SELECT Account_Status__c FROM Account WHERE Id = :testAccount.Id];
          
        System.assertEquals(accountInfo.Account_Status__c, testtask.Account_Status__c);
        
        insert testTask;
              
        System.assertEquals(testtask.AccountId, testAccount.Id);
    }
} 

Debug Log Detail

pex Debug Log Detail
User	test	Date	11/15/2013 5:02:44 PM EST
Status	Attempt to de-reference a null object	Application	Browser
Request Type	Application	Operation	/setup/own/deleteredirect.jsp
Duration (ms)	74	Log Size (bytes)	170
Log	
19.0 APEX_CODE,DEBUG;APEX_PROFILING,INFO;CALLOUT,INFO;DB,INFO;SYSTEM,DEBUG;VALIDATION,INFO;VISUALFORCE,INFO;WORKFLOW,INFO
17:02:44.042 (42701000)|ENTERING_MANAGED_PKG|qc

Any input is greatly appreciated!

Thanks!

Mike