##### SUMMARY
As of 2019-01-15 Maven Central now requires `https`. 

https://support.sonatype.com/hc/en-us/articles/360041287334

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
* maven_repository

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
It's in the build system. Full out not relevant.

ANSIBLE_VERSION=2.8.5
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below
Not relevant
```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. 
Ubuntu 18.04 CIS
-->


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

Attempt to get an artifact from Maven Central using `http` instead of `https`

<!--- Paste example playbooks or commands between quotes below -->
```yaml
- name: Download latest agent from maven central
  maven_artifact:
    group_id: com.contrastsecurity
    artifact_id: contrast-agent
    version: "{{ contrast_agent_version }}"
    dest: "{{ contrast_agent_path }}/contrast/contrast.jar"
    owner: tomcat
    group: tomcat 
    mode: 0644
```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->

I expected the artifact to be copied to the AMI as it has done for years before this :-)

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

amazon-ebs: TASK [contrast : Download latest agent from maven central] *********************
    amazon-ebs: fatal: [teamserver-intuit-1579469195]: FAILED! => {"changed": false, "msg": "Failed to download artifact com.contrastsecurity:contrast-agent:3.6.9.11819 because of HTTP Error 501: HTTPS Requiredfor URL http://repo1.maven.org/maven2/com/contrastsecurity/contrast-agent/3.6.9.11819/contrast-agent-3.6.9.11819.jar"}
    amazon-ebs:
 
http://repo1.maven.org/maven2/com/contrastsecurity/contrast-agent/3.6.9.11819/contrast-agent-3.6.9.11819.jar

<!--- Paste verbatim command output between quotes -->
```paste below
Not sure what command you are referring to?
```

return None
            else:
                return "Checksum does not match: we computed " + local_md5 + "but the repository states " + remote_md5
        return "Path does not exist: " + file
    def _local_md5(self, file):
        md5 = hashlib.md5()
        with io.open(file, 'rb') as f:
            for chunk in iter(lambda: f.read(8192), b''):
                md5.update(chunk)
        return md5.hexdigest()
def main():
    module = AnsibleModule(
        argument_spec=dict(
            group_id=dict(required=True),
            artifact_id=dict(required=True),
            version=dict(default=None),
            version_by_spec=dict(default=None),
            classifier=dict(default=''),
            extension=dict(default='jar'),
            repository_url=dict(default='http://repo1.maven.org/maven2'),
            username=dict(default=None, aliases=['aws_secret_key']),
            password=dict(default=None, no_log=True, aliases=['aws_secret_access_key']),
            headers=dict(type='dict'),
            force_basic_auth=dict(default=False, type='bool'),
            state=dict(default="present", choices=["present", "absent"]),  
            timeout=dict(default=10, type='int'),
            dest=dict(type="path", required=True),
            validate_certs=dict(required=False, default=True, type='bool'),
            keep_name=dict(required=False, default=False, type='bool'),
            verify_checksum=dict(required=False, default='download', choices=['never', 'download', 'change', 'always'])