Deserializing 2D array of objects JSON to Java -

I am using GSON to deserialize my JSON string. It seems that when you try to deserialize the 2D array of objects, tickles here are bit:

  {. "State": ["Span": "{{" name ":" STATEA "," duration ": 4}, {" name ":" STATEB "," duration ": 4}], {" ALIVEPHASE ": [{" Name ":" STATEA "," Duration ": 5}, {" Name ":" STATEB "," Duration ": 4}]}]}  

A part of a larger JSON above is that I got the expected BEGIN_ARRAY but was BEGIN_OBJECT , I have seen my JSON, but I do not know where it is wrong

  Group g = gson.fromJson (configfile, Group.class);  

I use this to start reading. Is it not enough to take action on string for 2D array?

I tried both in Group.class

  state state [] [] states;  

and

  public list & lt; List & lt; State & gt; & Gt; States;  

Everything else seems to recover.

Do I have to use it (below)?

  Type type archive = new typography & lt; Collection & lt; Integer & gt; & Gt; () {} GetType (); Collections & lt; Integer & gt; Ints2 = gson.from Jason (json, collection type);  
 
 Your displayed JSON has a field  state . 
 
 In that field there is an array that you show as two  different types  of objects one is in a field  SPAWNINGPHASE , another field < Code> ALIVEPHASE . Each of them holds an orange that has another type of object. 
 
 This is a problem for automatic self-ownership of a POJO. 
 
 The only way could possibly work if there were areas for each "step" of your  state  class (It is assumed that you have a Java class whose name is < Code> NameAndDuration is  you can map those internal objects). 
 
  class state {list & lt; NameAndDuration & gt; SPAWNINGPHASE; & Lt; NameAndDuration & gt; ALIVEPHASE; ...}  
 
 provided that you mean that your  group  class represents JSON object, this will be: 
 
 < Code> list & lt; State & gt; States;  
 
 The GSO has quietly ignored any missing fields in JSON, so you can list only the  list  of your  list  With one of the field sets and all other  null  
 
 As you must: 
 
  public list & lt; Maps & lt; String, list & lt; NameAndDuration & gt; & Gt; & Gt; States;  
 
 A JSON object is naturally a key / value map and because the objects inside the array are of a normal type, which will work. You have a  list  with a  map  in which each one had an entry, the "step" as the key, and the list of those internal objects. Not quite right, but it will work. 
 
 Option B and anything else that is more understandable is changing JSON, so the "step" is an  value : 
 <">" "" [ "" Span "," Value ": [{" Name ":" STATEA "," Period ": 4}, {" Name ":" STATEB "," Duration ": 4}]}]}  

and change your state class accordingly:

  class state {String status; list & gt; values ​​& gt; values; }  

(Note that you can also use enum for step here)

now List & lt; state & gt; states; little (It seems to be a bit of a misnomer, it seems that in fact you have a list of "steps" which state information "list of states" Instead) is