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prady "System.NullPointerException: Attempt to de-reference a null object", Failure Stack Trace
Hi,
I have a class written and when i move the class to production i get an error. Everything seems to work fine on sandBox.
If i remove the block of code it passes the code to production. I have a almost similar piece of code just
below the erroring code. This works fine and gets passed over into production. Any ideas on what could
be the issue?
Failure Message: "System.NullPointerException: Attempt to de-reference a null object", Failure Stack Trace: "Class.AppointmentController.refresh: line 252, column 82 Class.Test_Appointment.Testapp: line 29, column 6 External entry point"
Here is my code
Public Class AppointmentController
{
public PageReference createApp() {
return page.Appointment;
}
Public Appointment__c Appointment { get; set; }
public String Error { get; set; }
public String ClientsSearch { get; set; }
public list<CEventTimeSlot> liETimeSlots {get;set;}
public list<CEventTimeSlot> liETimeSlots_form {get;set;}
public list<CTimeSlot> liTimeSlots {get;set;}
public list<CTimeSlot> liTimeSlots_form {get;set;}
public Map<string,CTimeSlot> mapTimeToSlot {get;set;}
public Map<string,CEventTimeSlot> mapETimeToSlot {get;set;}
public List<String> LstString{get;set;}
Public AppointmentController()
{
Appointment = new Appointment__c();
}
/* function called from VF page for updating the startdatetime and endDatetime and rendering into VF page */
public PageReference refresh() {
try
{
liTimeSlots = new list<CTimeSlot>();
mapTimeToSlot = new Map<string,CTimeSlot>();
liTimeSlots_form = new list<CTimeSlot>();
//For adding Events
liETimeSlots = new list<CEventTimeSlot>();
mapETimeToSlot = new Map<string,CEventTimeSlot>();
liETimeSlots_form = new list<CEventTimeSlot>();
if (Appointment.Start_Date__c<>null)
{
Time pktime;
Time pkTime1;
List<Time> LstTime = new List<Time>();
pktime=time.newInstance(7,0,0,0);
LstTime.add(pktime);
for(integer ctr=0; ctr<30;ctr++)
{
pktime=pktime.addMinutes(30);
LstTime.Add(pkTime);
}
system.Debug(' Listtime '+LstTime);
system.debug('No of Time Items'+LstTime.size());
for(integer ctr1=0; ctr1<LstTime.size();ctr1++)
{
CTimeSlot newSlot = new CTimeSlot(string.valueof(LstTime[ctr1]));
liTimeSlots.add(newSlot);
mapTimeToSlot.put(string.valueof(LstTime[ctr1])+ '', newSlot);
newSlot=null;
CEventTimeSlot newESlot = new CEventTimeSlot(string.valueof(LstTime[ctr1]));
liETimeSlots.add(newESlot);
mapETimeToSlot.put(string.valueof(LstTime[ctr1])+ '', newESlot);
newESlot=null;
}
system.debug('liETimeSlots.....'+liETimeSlots);
system.debug('mapETimeToSlot.....'+mapETimeToSlot);
String t_startdatetime_str;
String t_enddatetime_str;
integer t_syear;
integer t_smonth;
integer t_day;
t_syear=Appointment.Start_Date__c.year();
t_smonth=Appointment.Start_Date__c.month();
t_day=Appointment.Start_Date__c.day();
t_startdatetime_str=t_syear+'-'+t_smonth+'-'+t_day+' 00:00:00';
datetime t_startdatetime;
datetime t_enddatetime;
t_startdatetime=datetime.valueof(t_startdatetime_str);
t_enddatetime=t_startdatetime.addHours(23);
t_enddatetime=t_enddatetime.addMinutes(59);
t_enddatetime=t_enddatetime.addSeconds(59);
datetime Ls_startdatetime;
datetime Ls_enddatetime;
//t_startdatetime=Appointment.Start_Date__c.format();
system.debug('t_startdatetime'+t_startdatetime);
List<Appointment__c> a=[select id, name,Appointment_Type__c,Status__c,StartDateTime__c,EndDateTime__c,Duration__c, ap.Client_First_Name__c,patient__c,subject__c from Appointment__c ap where
(
(ap.StartDateTime__c >= :t_startdatetime AND ap.StartDateTime__c <= :t_enddatetime) OR
(ap.EndDateTime__c >= :t_startdatetime AND ap.EndDateTime__c <= :t_enddatetime) OR
(ap.StartDateTime__c <= :t_startdatetime AND ap.EndDateTime__c >= :t_enddatetime)
)];
List<Event> eve=[select id, subject,StartDateTime,EndDateTime from event eve where
(
(eve.StartDateTime >= :t_startdatetime AND eve.StartDateTime <= :t_enddatetime) OR
(eve.EndDateTime >= :t_startdatetime AND eve.EndDateTime <= :t_enddatetime) OR
(eve.StartDateTime <= :t_startdatetime AND eve.EndDateTime >= :t_enddatetime)
)];
/*Start_Date__c=: Appointment.Start_Date__c order by Start_Date__c asc ] ;*/
System.debug(eve);
string tshour;
string tmin;
string strLs_startdatetime;
Integer noofslots=0;
time overLapSlotsTime;
Integer noofEslots=0;
time overLapESlotsTime;
string timeAMPM;
integer timeHour;
string timeMin;
Decimal datediff=0;
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
/*=========================ERRORS OUT IN THIS BLOCK==============================*/
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
if (eve.size()>0)
{
for(integer z=0;z<eve.size();z++)
{
if(mapETimeToSlot.get(string.valueof(eve[z].StartDateTime.time())) != null)
{
// system.debug('+++++++++++++++++++++++++++++++++++++duration'+a[z].Duration__c);
overLapESlotsTime=eve[z].StartDateTime.time();
datediff=((Decimal.valueOf(eve[z].EndDateTime.getTime()) - Decimal.valueOf(eve[z].StartDateTime.getTime()))/(1000*60*60))*60;
system.debug('datediff '+datediff);
if(datediff>30)
{
noofEslots=integer.valueOf((datediff/30));
system.debug('+++++++++++++++++++++++++++++++++++++noofslots'+noofEslots);
for(Integer nctr=0;nctr<noofEslots;nctr++)
{
if(mapETimeToSlot.get(string.valueof(overLapESlotsTime)).sEvent!=null)
//-------------------------------------------------------------------------------------------
//////////////////////////////////////ERRORS ON ABOVE LINE//////////////////////////////////
//-------------------------------------------------------------------------------------------
{
mapETimeToSlot.get(string.valueof(overLapESlotsTime)).sEventOverlap = eve[z];
mapETimeToSlot.get(string.valueof(overLapESlotsTime)).status='Y';
system.debug('++++++++++++++++++++++++++++++++++++inside overlap');
}
else
{
mapETimeToSlot.get(string.valueof(overLapESlotsTime)).sEvent = eve[z];
system.debug('+++++++++++++++++++++++++++++++++outside overlap');
}
overLapESlotsTime=overLapESlotsTime.addMinutes(30);
}
//mapTimeToSlot.get(string.valueof(a[z].StartDateTime__c.time())).sAppointment = a[z];
}else
{
if(mapETimeToSlot.get(string.valueof(overLapESlotsTime)).sEvent!=null)
{
mapETimeToSlot.get(string.valueof(eve[z].StartDateTime.time())).sEventOverlap = eve[z];
}
else
{
mapETimeToSlot.get(string.valueof(eve[z].StartDateTime.time())).sEvent = eve[z];
}
}
}
}
}
/*=========================================================================================*/
/********************************************THIS BLOCK BELOW WORKS********************************/
/*===========================================================================================*/
if (a.size()>0)
{
for(integer z=0;z<a.size();z++)
{
if(mapTimeToSlot.get(string.valueof(a[z].StartDateTime__c.time())) != null)
{
system.debug('+++++++++++++++++++++++++++++++++++++duration'+a[z].Duration__c);
overLapSlotsTime=a[z].StartDateTime__c.time();
datediff=((Decimal.valueOf(a[z].EndDateTime__c.getTime()) - Decimal.valueOf(a[z].StartDateTime__c.getTime()))/(1000*60*60))*60;
system.debug('datediff '+datediff);
if(datediff>30)
{
noofslots=integer.valueOf((datediff/30));
system.debug('+++++++++++++++++++++++++++++++++++++noofslots'+noofslots);
for(Integer nctr=0;nctr<noofslots;nctr++)
{
system.debug('+++++++++++++++++++++++++++++++++++++overLapSlotsTime'+overLapSlotsTime);
if(mapTimeToSlot.get(string.valueof(overLapSlotsTime)).sAppointment!=null)
{
mapTimeToSlot.get(string.valueof(overLapSlotsTime)).sAppointmentOverlap = a[z];
mapTimeToSlot.get(string.valueof(overLapSlotsTime)).status='Y';
system.debug('++++++++++++++++++++++++++++++++++++inside overlap');
}
else
{
mapTimeToSlot.get(string.valueof(overLapSlotsTime)).sAppointment = a[z];
system.debug('+++++++++++++++++++++++++++++++++outside overlap');
}
overLapSlotsTime=overLapSlotsTime.addMinutes(30);
}
//mapTimeToSlot.get(string.valueof(a[z].StartDateTime__c.time())).sAppointment = a[z];
}else
{
if(mapTimeToSlot.get(string.valueof(overLapSlotsTime)).sAppointment!=null)
{
mapTimeToSlot.get(string.valueof(a[z].StartDateTime__c.time())).sAppointmentOverlap = a[z];
}
else
{
mapTimeToSlot.get(string.valueof(a[z].StartDateTime__c.time())).sAppointment = a[z];
}
}
}
}
}
/*==============================================================================================
for(integer lictr=0;lictr<liETimeSlots.size();lictr++)
{
system.debug('inside transfer of liETimeSlots to Formated List');
timeAMPM=liETimeSlots[lictr].tstart1.substring(0,5);
timeHour=integer.valueof(timeAMPM.substring(0,2));
timeMin=timeAMPM.substring(2,5);
system.debug('time hour value'+timeHour);
system.debug('time hour value'+timeMin);
if (timeHour>12)
{
timeHour=timehour-12;
system.debug('timeHour++++++++++++++++++++++++++'+timeHour) ;
timeAMPM=string.valueof(timeHour);
if (timeAMPM.length()==1)
{
timeAMPM='0'+timeAMPM+timeMin+' PM';
}
else
{
timeAMPM=timeAMPM+timeMin+' PM';
}
}
else
{
timeAMPM=string.valueof(timeHour);
if (timeAMPM.length()==1)
{
timeAMPM='0'+timeAMPM+timeMin+' AM';
}
else
{
timeAMPM=timeAMPM+timeMin+' AM';
}
}
liETimeSlots[lictr].tstart1=timeAMPM;
//liTimeSlots_form[lictr].sAppointment=liTimeSlots[lictr].sAppointment;
}
system.debug('liETimeSlots++++++++++++++++++++++++'+liETimeSlots);
/*============================================================================================*/
for(integer lictr=0;lictr<liTimeSlots.size();lictr++)
{
system.debug('inside transfer of liTimeSlots to Formated List');
timeAMPM=liTimeSlots[lictr].tstart1.substring(0,5);
timeHour=integer.valueof(timeAMPM.substring(0,2));
timeMin=timeAMPM.substring(2,5);
system.debug('time hour value'+timeHour);
system.debug('time hour value'+timeMin);
if (timeHour>12)
{
timeHour=timehour-12;
system.debug('timeHour++++++++++++++++++++++++++'+timeHour) ;
timeAMPM=string.valueof(timeHour);
if (timeAMPM.length()==1)
{
timeAMPM='0'+timeAMPM+timeMin+' PM';
}
else
{
timeAMPM=timeAMPM+timeMin+' PM';
}
}
else
{
timeAMPM=string.valueof(timeHour);
if (timeAMPM.length()==1)
{
timeAMPM='0'+timeAMPM+timeMin+' AM';
}
else
{
timeAMPM=timeAMPM+timeMin+' AM';
}
}
liTimeSlots[lictr].tstart1=timeAMPM;
//liTimeSlots_form[lictr].sAppointment=liTimeSlots[lictr].sAppointment;
}
}
}
}
public with sharing class CEventTimeSlot {
// public Time tStart {get; set;}
public string status {get;set;}
public String tStart1 {get; set;}
public Event sEvent {get; set;}
public Event sEventOverlap {get; set;}
public CEventTimeSlot(String startTime)
{
tStart1 = startTime;
status='';
sEvent = null;
sEventOverlap=null;
}
}
public with sharing class CTimeSlot {
// public Time tStart {get; set;}
public string status {get;set;}
public String tStart1 {get; set;}
public Appointment__c sAppointment {get; set;}
public Appointment__c sAppointmentOverlap {get; set;}
public CTimeSlot(String startTime)
{
tStart1 = startTime;
status='';
sAppointment = null;
sAppointmentOverlap=null;
}
}
Perhaps this
is returning null
All Answers
When you create the list called eve, are you sure that it is not coming out null?
If you reply to this please provide line numbers or at least highlight the lines that are mentioned in the error message
Thanks
Hi,
I have marked in the code exactly where the error is occuring.
It all works perfectly fine in sandbox, Its only when i am moving to production i get this problem.
The issue occurs in the Line where i am checking for null
if(mapETimeToSlot.get(string.valueof(overLapESlotsTime)).sEvent!=null)
Here is code which is causing the issue...
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ /*=========================ERRORS OUT IN THIS BLOCK==============================*/ /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */ if (eve.size()>0) { for(integer z=0;z<eve.size();z++) { if(mapETimeToSlot.get(string.valueof(eve[z].StartDateTime.time())) != null) { // system.debug('+++++++++++++++++++++++++++++++++++++duration'+a[z].Duration__c); overLapESlotsTime=eve[z].StartDateTime.time(); datediff=((Decimal.valueOf(eve[z].EndDateTime.getTime()) - Decimal.valueOf(eve[z].StartDateTime.getTime()))/(1000*60*60))*60; system.debug('datediff '+datediff); if(datediff>30) { noofEslots=integer.valueOf((datediff/30)); system.debug('+++++++++++++++++++++++++++++++++++++noofslots'+noofEslots); for(Integer nctr=0;nctr<noofEslots;nctr++) { if(mapETimeToSlot.get(string.valueof(overLapESlotsTime)).sEvent!=null) //------------------------------------------------------------------------------------------- //////////////////////////////////////ERRORS ON ABOVE LINE////////////////////////////////// //------------------------------------------------------------------------------------------- { mapETimeToSlot.get(string.valueof(overLapESlotsTime)).sEventOverlap = eve[z]; mapETimeToSlot.get(string.valueof(overLapESlotsTime)).status='Y'; system.debug('++++++++++++++++++++++++++++++++++++inside overlap'); } else { mapETimeToSlot.get(string.valueof(overLapESlotsTime)).sEvent = eve[z]; system.debug('+++++++++++++++++++++++++++++++++outside overlap'); } overLapESlotsTime=overLapESlotsTime.addMinutes(30); } //mapTimeToSlot.get(string.valueof(a[z].StartDateTime__c.time())).sAppointment = a[z]; }else { if(mapETimeToSlot.get(string.valueof(overLapESlotsTime)).sEvent!=null) { mapETimeToSlot.get(string.valueof(eve[z].StartDateTime.time())).sEventOverlap = eve[z]; } else { mapETimeToSlot.get(string.valueof(eve[z].StartDateTime.time())).sEvent = eve[z]; } } } } } /*=========================================================================================*/ /********************************************THIS BLOCK BELOW WORKS********************************/ /*===========================================================================================*/ if (a.size()>0) { for(integer z=0;z<a.size();z++) { if(mapTimeToSlot.get(string.valueof(a[z].StartDateTime__c.time())) != null) { system.debug('+++++++++++++++++++++++++++++++++++++duration'+a[z].Duration__c); overLapSlotsTime=a[z].StartDateTime__c.time(); datediff=((Decimal.valueOf(a[z].EndDateTime__c.getTime()) - Decimal.valueOf(a[z].StartDateTime__c.getTime()))/(1000*60*60))*60; system.debug('datediff '+datediff); if(datediff>30) { noofslots=integer.valueOf((datediff/30)); system.debug('+++++++++++++++++++++++++++++++++++++noofslots'+noofslots); for(Integer nctr=0;nctr<noofslots;nctr++) { system.debug('+++++++++++++++++++++++++++++++++++++overLapSlotsTime'+overLapSlotsTime); if(mapTimeToSlot.get(string.valueof(overLapSlotsTime)).sAppointment!=null) { mapTimeToSlot.get(string.valueof(overLapSlotsTime)).sAppointmentOverlap = a[z]; mapTimeToSlot.get(string.valueof(overLapSlotsTime)).status='Y'; system.debug('++++++++++++++++++++++++++++++++++++inside overlap'); } else { mapTimeToSlot.get(string.valueof(overLapSlotsTime)).sAppointment = a[z]; system.debug('+++++++++++++++++++++++++++++++++outside overlap'); } overLapSlotsTime=overLapSlotsTime.addMinutes(30); } //mapTimeToSlot.get(string.valueof(a[z].StartDateTime__c.time())).sAppointment = a[z]; }else { if(mapTimeToSlot.get(string.valueof(overLapSlotsTime)).sAppointment!=null) { mapTimeToSlot.get(string.valueof(a[z].StartDateTime__c.time())).sAppointmentOverlap = a[z]; } else { mapTimeToSlot.get(string.valueof(a[z].StartDateTime__c.time())).sAppointment = a[z]; } } } } }Perhaps this
is returning null
Would that happen coz i am checking for it in a if statement above
if(mapETimeToSlot.get(string.valueof(eve[z].StartDateTime.time())) != null) { // system.debug('+++++++++++++++++++++++++++++++++++++duration'+a[z].Duration__c); overLapESlotsTime=eve[z].StartDateTime.time();I have a very similar peice of code below the erroring code which works perfectly.
Hi,
Thanks for your pointer... The issue really was with the
I was checking for times falling with in 7AM to 10 PM with intervals of 30 mins. There were some events which were falling between 30 min interval like 7:28AM. So this waqs giving a null value which caused the error