Store data into aerospike

I have some data which is to be stored into aerospike against a column

Suppose the incomming data is

["A", 1]

Now the first question is how to hold this data in Java.

I tried this.

ArrayList value = new ArrayList();
value.add(new String("A"));
value.add(new Integer(2));

When i try to write this data to aerospike using

AerospikeClient client = client.put(new WritePolicy(), 
         new Key("namespace", "set", "test"), 
         new Bin("binName", value) );

Then if i use AQL to query then i am seeing

| AC ED 00 05 73 72 00 13 6A 61 76 61 2E 75 74 69 6C 2E 41 72 72 61 79 4C 69 73 74 78 81 D2 1D 99 C7 61 9D 03 00 01 49 00 04 73 69 7A 65 78 70 00 00 00 02 77 04 00 00 00 02 73 72 00 11 6A 61 76 61 2E 6C 61 6E 67 2E 49 6E 74 65 67 65 72 12 E2 A0 A4 F7 81 87 |

Some HexaDecimal numbers

but when i try to store the Data into Aerospike using

AerospikeClient client = client.put(new WritePolicy(), 
         new Key("namespace", "set", "test"), 
         new Bin("binName", Value.getAsList(value)) );

Then firing query through AQL gives me

["A",1]

Which is and seems like the intended behaviour but when i use the Aerospike client to fetch the values and check their types

List<Object> ret = (List<Object>) client.get(new Policy(), key, "test").getValue("binName");

    if(ret.get(0) instanceof Long){
        System.out.println("Got instance of long");
    }

Then i can see the print statement though Initially i sent Integer data.

Why is this happening, and can anyone tell me the any alternate solution to save an incomming data into aerospike say the data is

["A",1]

PS:Please support your answer with small code snippit

FOUND SOME INFO ON GITHUB

In reference to this link there is some function

which i am copy/pasting below

/**
 * Write/Read ArrayList<Object> directly instead of relying on java serializer.
 */
private void testListComplex(AerospikeClient client, Parameters params) throws Exception {
    console.info("Read/Write ArrayList<Object>");
    Key key = new Key(params.namespace, params.set, "listkey2");
    client.delete(params.writePolicy, key);

    byte[] blob = new byte[] {3, 52, 125};      
    ArrayList<Object> list = new ArrayList<Object>();
    list.add("string1");
    list.add(2);
    list.add(blob);

    Bin bin = new Bin(params.getBinName("listbin2"), list);
    client.put(params.writePolicy, key, bin);

    Record record = client.get(params.policy, key, bin.name);
    List<?> receivedList = (List<?>) record.getValue(bin.name);

    validateSize(3, receivedList.size());
    validate("string1", receivedList.get(0));
    // Server convert numbers to long, so must expect long.
    validate(2L, receivedList.get(1)); 
    validate(blob, (byte[])receivedList.get(2));
    
    console.info("Read/Write ArrayList<Object> successful.");
}

There is a comment that server converts number to long

Now i have a question. So does it mean for this type of Case integer cannot be stored?