Unable to run spring-boot jar artifact built by Gitlab CI

I have a spring-boot application which uses Gitlab CI to build the artifacts.
I am using the following gitlab-ci.yml file configurations.

image: docker:latest
services:
  - docker:dind

variables:
  DOCKER_DRIVER: overlay

stages:
  - build

maven-build:
  image: maven:3-jdk-8
  stage: build
  only:
  - master
  - staging
  - ci
  script:
    - mvn clean package -Dmaven.test.skip=true
  artifacts:
    paths:
      - target/*.jar

When I download the generated artifact and run the jar file, it shows the following error

  This application has no explicit mapping for /error, 
  so you are seeing this as a fallback.

  Wed Apr 05 13:20:00 IST 2017
  There was an unexpected error (type=Not Found, status=404).
  /WEB-INF/pages/login.jsp

But no such error is thrown when I am packaging and running the jar in my local machine. The error only happens with the jar downloaded from the Gitlab pipeline