本地正常运行的build.gradle在GitLab CI Runner中执行失败

• 基于adoptopenjdk:11-jdk镜像运行Docker容器
• 容器内执行仅包含gradlew check的脚本./scripts/bash/run_plugin_tests.sh
• 构建成功，测试正常执行

• 使用Docker执行器的GitLab CI Runner
• 对应的.gitlab-ci.yml配置如下：

stages:
- test
- deploy

variables:
  GRAILS_OPTS: -Xms512m  -Xmx512m
  DEPLOYMENT: CI

test_plugin:
  image: adoptopenjdk:11-jdk
  stage: test
  script:
  - ./scripts/bash/run_plugin_tests.sh
  artifacts:
    when: always
    expire_in: 7d
    reports:
      junit:
        - ./build/test-results/test/*.xml
    paths:
      - ./build/reports/tests/*

deploy_plugin:
  image: adoptopenjdk:11-jdk
  stage: deploy
  script:
    - ./scripts/bash/deploy_plugin.sh
  dependencies:
    - test_plugin
  #Only on master branch
  only:
    - main

• Runner初始化启动容器的日志如下：

Running with gitlab-runner 15.6.1 (133d7e76)
  on EC2-Gitlab-runner(Instance : i-0b35b804ea5d8f6d7) zpxfwm-E
Preparing the "docker" executor 00:02
Using Docker executor with image adoptopenjdk:11-jdk ...
Pulling docker image adoptopenjdk:11-jdk ...

• 构建测试阶段失败，报错为找不到或无法加载主类，Gradle Test Executor进程退出值非零

• 该问题仅在GitLab CI环境出现，本地执行无异常；GitLab CI Runner可正常运行其他项目
• 项目为Grails插件，经排查发现是GitLab CI中GRAILS_OPTS变量内-Xms512m与-Xmx512m之间有两个空格，导致Grails 4.0.5解析失败
• 将空格改为单个后，构建成功，修改后的.gitlab-ci.yml配置如下：

stages:
- test
- deploy

variables:
  GRAILS_OPTS: -Xms512m -Xmx512m
  DEPLOYMENT: CI

test_plugin:
  image: adoptopenjdk:11-jdk
  stage: test
  script:
  - ./scripts/bash/run_plugin_tests.sh
  artifacts:
    when: always
    expire_in: 7d
    reports:
      junit:
        - ./build/test-results/test/*.xml
    paths:
      - ./build/reports/tests/*

deploy_plugin:
  image: adoptopenjdk:11-jdk
  stage: deploy
  script:
    - ./scripts/bash/deploy_plugin.sh
  dependencies:
    - test_plugin
  #Only on master branch
  only:
    - main

内容的提问来源于stack exchange，提问作者Luis Muñiz