Gitlab-ci.yml _ does not work for for java:8

Hi,
When the build is launched, an permission denied error occcure. Could you help me?
Regards,

.gitlab-ci.yml

image: java:8

stages:

  • build

build:
stage: build
script: ./mvnw package
artifacts:
paths:
- target/poc-api-products-0.0.1-SNAPSHOT.jar

Pipeline Console:

Running with gitlab-runner 11.2.0-rc2 (1644837a)
on docker-auto-scale fa6cab46
Using Docker executor with image java:8 …
Pulling docker image java:8 …
Using docker image sha256:d23bdf5b1b1b1afce5f1d0fd33e7ed8afbc084b594b9ccf74 for java:8 …

Running on runner-fa6cab46-project-8045515-concurrent-0 via runner-fa6cab46-srm-1535114538-ac38e681…

Cloning repository…
Cloning into ‘/builds/poc-api/products’…
Checking out f2f17a31 as feature/install-ci…
Skipping Git submodules setup

$ ./mvnw package
/bin/bash: line 65: ./mvnw: Permission denied

ERROR: Job failed: exit code 1