[jira] [Created] (GEODE-8372) Configure CMS to use UTF-8 regardless of JVM default

["Dale Emery (Jira)" <ji...@apache.org>]

Dale Emery created GEODE-8372:
---------------------------------

             Summary: Configure CMS to use UTF-8 regardless of JVM default
                 Key: GEODE-8372
                 URL: https://issues.apache.org/jira/browse/GEODE-8372
             Project: Geode
          Issue Type: Bug
          Components: management
            Reporter: Dale Emery


In a client, CMS accepts only UTF-8 messages from the locator. But the locator can send non-UTF-8 messages depending on how the JVM and OS are configured.

It looks as if the locator CMS uses the JVM's default character encoding, and the JVM sets its default character encoding based on the operating system's default locale.

If a client CMS accepts only UTF-8, the locator CMS should send only UTF-8, regardless of the JVM's default character encoding.

Example: I have a test client that uses a {{ClientClusterManagementService}} to create a region. The locator, runs on a machine where the default locale is us_EN.US-ASCII, sends US-ASCII responses. The client throws an exception:

{noformat}
org.springframework.web.client.UnknownContentTypeException: Could not extract response: no suitable HttpMessageConverter found for response type [class org.apache.geode.management.api.ClusterManagementRealizationResult] and content type [application/json;charset=US-ASCII]
{noformat}

For testing: On my mac, it's possible to set the encoding for a locator by setting the {{LC_ALL}} environment variable in the shell before launching the locator.

For example, if I execute {{export LC_ALL=en_US.US-ASCII}}, then launch a locator in that shell, the locator sends CMS messages in US-ASCII, as shown in this {{curl -v}} output:


{noformat}
 % curl localhost:7070/management/v1/regions -v
*   Trying ::1...
* TCP_NODELAY set
* Connected to localhost (::1) port 7070 (#0)
> GET /management/v1/regions HTTP/1.1
> Host: localhost:7070
> User-Agent: curl/7.64.1
> Accept: */*
>
< HTTP/1.1 200 OK
< Date: Tue, 21 Jul 2020 16:28:26 GMT
< Content-Type: application/json; charset=US-ASCII
< X-Content-Type-Options: nosniff
< X-XSS-Protection: 1; mode=block
< Cache-Control: no-cache, no-store, max-age=0, must-revalidate
< Pragma: no-cache
< Expires: 0
< X-Frame-Options: DENY
< Content-Length: 31
< Server: Jetty(9.4.21.v20190926)
<
* Connection #0 to host localhost left intact
{"statusCode":"OK","result":[]}* Closing connection 0
{noformat}




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