AWS CodePipeline deploy Spring Boot application to Elastic BeansTalk no .jar file at root level of your source - spring-boot

Question

I built a simple CodePipeline for a SpringBoot Java application with 3 steps:
Source: get the source from GitHub
Build: a jar file
Deploy: to an AWS Elastic Beanstalk instance
I had this error in logs
An error occurred during execution of command [app-deploy] -
[CheckProcfileForJavaApplication]. Stop running the command. Error:
there is no Procfile and no .jar file at root level of your source
bundle
My Buildspec:
version: 0.2
#env:
#variables:
# key: "value"
# key: "value"
#parameter-store:
# key: "value"
# key: "value"
#secrets-manager:
# key: secret-id:json-key:version-stage:version-id
# key: secret-id:json-key:version-stage:version-id
#exported-variables:
# - variable
# - variable
#git-credential-helper: yes
#batch:
#fast-fail: true
#build-list:
#build-matrix:
#build-graph:
phases:
install:
runtime-versions:
java: corretto11
#If you use the Ubuntu standard image 2.0 or later, you must specify runtime-versions.
#If you specify runtime-versions and use an image other than Ubuntu standard image 2.0, the build fails.
#runtime-versions:
# name: version
# name: version
#commands:
# - command
# - command
#pre_build:
#commands:
# - command
# - command
build:
commands:
- mvn install
# - command
# - command
#post_build:
#commands:
# - command
# - command
#reports:
#report-name-or-arn:
#files:
# - location
# - location
#base-directory: location
#discard-paths: yes
#file-format: JunitXml | CucumberJson
artifacts:
files:
- target/sbk-0.0.2.jar
# - location
# - location
#name: $(date +%Y-%m-%d)
#discard-paths: yes
#base-directory: location
#cache:
#paths:
# - paths
it'is work fine when I upload manualy to EBS but when do it withe the pipeline , its doesnt work.
thanks in advance

Answer 1

I found the solution
AWS BS dont found the jar in the pckaging folder, he found target/xx.jar
What i did is i move the jar to main folder
with this commande
- mv target/*.jar app.jar
full of buildspec
version: 0.2
phases:
install:
runtime-versions:emphasized text
java: corretto11
commands:
- echo install
pre_build:
commands:
- echo pre_build
build:
commands:
- mvn package
- echo build
post_build:
commands:
- echo post_build
- mv target/*.jar app.jar
artifacts:
files:
- app.jar