Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/cache@v3, actions/checkout@v3, actions/setup-java@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Error: Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved.

The ubuntu-18.04 environment is deprecated, consider switching to ubuntu-20.04(ubuntu-latest), or ubuntu-22.04 instead. For more details see https://github.com/actions/virtual-environments/issues/6002