How to fix issue with GSON not parsing JSON in Java? [duplicate]

I'm trying to capture and print the contents of a JSON file using Java. I first set up my localhost on port 3000 to be the place where my GSON will look for the JSON file. However, when I go to implement the code in Java I keep getting this error. Expected BEGIN_OBJECT but was STRING at line 1 column 5. Now I have been researching on Stack Overflow and found out it is because i am basically passing back an invalid return type. Though once I made the needed adjustments, it still doesn't seem to work properly and keeps passing back that error. I have used these link to guide me "Expected BEGIN_OBJECT but was STRING at line 1 column 1"

Localhost JSON:

[
  {
    "u_acronym": "AdHoc",
    "name": "Ad Hoc Reporting (M&R) (AdHoc)",
    "u_application_entry_code": "PZ6"
  }
]

Code:

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Result {

    @SerializedName("u_acronym")
    @Expose
    private String uAcronym;
    @SerializedName("name")
    @Expose
    private String name;
    @SerializedName("u_application_entry_code")
    @Expose
    private String uApplicationEntryCode;

    public Result(String uAcronym, String name, String uApplicationEntryCode, String status) {
        this.uAcronym = uAcronym;
        this.name = name;
        this.uApplicationEntryCode = uApplicationEntryCode;
    }

    public String getUAcronym() {
        return uAcronym;
    }

    public void setUAcronym(String uAcronym) {
        this.uAcronym = uAcronym;
    }

    public Result withUAcronym(String uAcronym) {
        this.uAcronym = uAcronym;
        return this;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Result withName(String name) {
        this.name = name;
        return this;
    }

    public String getUApplicationEntryCode() {
        return uApplicationEntryCode;
    }

    public void setUApplicationEntryCode(String uApplicationEntryCode) {
        this.uApplicationEntryCode = uApplicationEntryCode;
    }

    public Result withUApplicationEntryCode(String uApplicationEntryCode) {
        this.uApplicationEntryCode = uApplicationEntryCode;
        return this;
    }

}

RestService Call:**

public static void callRestService()  {
        Gson gson = new Gson();

        Result placelist = gson.fromJson("http://localhost:3000/result", Result.class); 

        System.out.println(placelist);

    }