Error converting JSON. (com.google.gson.stream.MalformedJsonException)

I'm developing a program that needs to communicate with an online store, all communication is via HTTP requests and has a JSON response.

Displays the com.google.gson.stream.MalformedJsonException error. I have checked it several times and even using sites that give the JSON syntax and the syntax seems to be correct.

I developed a minimal and executable example, replacing all of the HTTP requests with a string that stores JSON for simplicity since the other parts do not contain errors and have data that I can not pass.

My question is how to resolve this com.google.gson.stream.MalformedJsonException error in my program. (Follows error log)

Json.class

import com.google.gson.reflect.TypeToken;
import java.lang.reflect.Type;
import java.util.List;
import javax.swing.JOptionPane;

public class Json {

    public static void main(String[] args) {
        JOptionPane.showMessageDialog(null, "O resultado é exibido no console.");


                String strJson = "[\n" +
                "{\n" +
                "“id”: 1,\n" +
                "“createdAt”: “2016-12-27T10:58:13-02:00”,\n" +
                "“updatedAt”: “2016-12-27T14:57:39-02:00”,\n" +
                "“erpId”: “Armazém 1”,\n" +
                "“name”: “Armazém Revenda”,\n" +
                "“priority”: 1,\n" +
                "“branch”: {\n" +
                "“id”: 1,\n" +
                "“erpId”: “Filial 1”,\n" +
                "“name”: “Filial 1”,\n" +
                "“documentId”: “”,\n" +
                "“createdAt”: “2016-12-27T10:58:13-02:00”,\n" +
                "“updatedAt”: “2016-12-27T10:58:13-02:00”\n" +
                "},\n" +
                "“default”: true,\n" +
                "“quantity”: 1\n" +
                "}\n" +
                "]";

        List<Warehouses> lista = JSONtoList(strJson);

        for(Warehouses w: lista) {
            System.out.println(w.getId());
            System.out.println(w.isDef());
        }

    }

    public static List<Warehouses> JSONtoList(String strJson) {
        Type type = new TypeToken<List<Warehouses>>() {
        }.getType();

        Gson gson = new GsonBuilder().setDateFormat("dd/MM/yyyy").create();
        List<Warehouses> lista = gson.fromJson(strJson, type);

        return lista;
    }

}

Branch.class

import java.util.Date;

public class Branch {

    private int id;
    private String erpId;
    private String name;
    private String documentId;
    private Date createdAt;
    private Date updateAt;

    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public String getErpId() {
        return erpId;
    }
    public void setErpId(String erpId) {
        this.erpId = erpId;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getDocumentId() {
        return documentId;
    }
    public void setDocumentId(String documentId) {
        this.documentId = documentId;
    }
    public Date getCreatedAt() {
        return createdAt;
    }
    public void setCreatedAt(Date createdAt) {
        this.createdAt = createdAt;
    }
    public Date getUpdateAt() {
        return updateAt;
    }
    public void setUpdateAt(Date updateAt) {
        this.updateAt = updateAt;
    }

}

Warehouses.class

import java.util.Date;

import com.google.gson.annotations.SerializedName;

public class Warehouses {

    private int id;
    private Date createdAt;
    private Date updateAt;
    private String erpId;
    private String name;
    private int priority;
    private Branch branch;
    @SerializedName("default")
    private boolean def;
    private int quantity;

    public int getId() {
        return id;
    }
    public void setId(int id) {
        this.id = id;
    }
    public Date getCreatedAt() {
        return createdAt;
    }
    public void setCreatedAt(Date createdAt) {
        this.createdAt = createdAt;
    }
    public Date getUpdateAt() {
        return updateAt;
    }
    public void setUpdateAt(Date updateAt) {
        this.updateAt = updateAt;
    }
    public String getErpId() {
        return erpId;
    }
    public void setErpId(String erpId) {
        this.erpId = erpId;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getPriority() {
        return priority;
    }
    public void setPriority(int priority) {
        this.priority = priority;
    }
    public Branch getBranch() {
        return branch;
    }
    public void setBranch(Branch branch) {
        this.branch = branch;
    }
    public boolean isDef() {
        return def;
    }
    public void setDef(boolean def) {
        this.def = def;
    }
    public int getQuantity() {
        return quantity;
    }
    public void setQuantity(int quantity) {
        this.quantity = quantity;
    }

}

Error

Exception in thread "main" com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Unterminated object at line 4 column 29 path $[0].null
    at com.google.gson.Gson.fromJson(Gson.java:942)
    at com.google.gson.Gson.fromJson(Gson.java:892)
    at com.google.gson.Gson.fromJson(Gson.java:841)
    at json.Json.JSONtoList(Json.java:56)
    at json.Json.main(Json.java:42)
Caused by: com.google.gson.stream.MalformedJsonException: Unterminated object at line 4 column 29 path $[0].null
    at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1568)
    at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:491)
    at com.google.gson.stream.JsonReader.hasNext(JsonReader.java:414)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:216)
    at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:41)
    at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:82)
    at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:61)
    at com.google.gson.Gson.fromJson(Gson.java:927)
    ... 4 more

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