Java: collection that cannot be converted to List
61982
How to convert a Collection to List?
119114
How do I clone a generic List in Java?
138687
How to fix "System.QueryException: List has more than 1 row for assignment to SObject"
65689
getting exception while putting list data into the map
137337
Removing duplicates from a list collection
124961
Do Apex collections implement iterable?
28147
java: (String[])List.toArray() gives ClassCastException
4523
How to convert string representation of list to a list?
9686
Casting IEnumerable to List
36524
How can elements be added to a wildcard generic collection?
171
Iterating through a Collection, avoiding ConcurrentModificationException when removing objects in a loop
30469
How can I exclude a collection from rendering with Python?
126006
How to find out if an Object is a collection or single value?
126140
Arraylist to List using .Net?
105261
What's the reason I can't create generic array types in Java?
77826
How to convert IEnumerable to ObservableCollection?
71925
Java Collections and Garbage Collector