<NPE when retrieving from HashMap even though cont...

# stackoverflow

[user]

NPE when retrieving from HashMap even though containsKey() returns true in multithreaded environment
We are trying to store unique object for a particular key. When getMyObject is called in multithreaded environment we are getting null ptr exception at the time of return statement
object SampleClass
{

fun getMyObject(Id : String) : MyObject
{
if(!myMap.containsKey(Id))
{
synchronized(SampleClass)
{
if(!myMap.containsKey(Id))
{
myMap[Id] = MyObject()
}
}
}...