I am getting the following error when executing my code.

Error : unable to find valid certification path to requested target

Expecting to be able to reach API endpoint and POST my JSON payload saved in .json file in my project.

  package Tests;

    import java.io.IOException;
    import java.nio.file.Files;
    import java.nio.file.Paths;
    import static io.restassured.RestAssured.given;
    import io.restassured.RestAssured;
    import io.restassured.response.Response;
    import io.restassured.specification.RequestSpecification;

    public class ReadJasonFile {

    public static void main(String[] args) throws IOException {
        
    //Credential variables
    String username = "MyUserName";
    String password = "MyPassword";
        
    RestAssured.baseURI = "MyBaseURI";
    RequestSpecification httpRequest =   
         RestAssured.given().auth().preemptive().basic(username, password);
    byte[] inp =Files.readAllBytes(Paths.get("MyFile.json"));
    String inputvalue = new String(inp);
        
    String response = given().header("Content-Type" , "application/json").body(inputvalue).
    when().post("RestOfMyEndPOintURL")
       .then().log().all().assertThat().statusCode(200).extract().response().asString();