Bug: Security Server diagnostics UI is broken even if only one of the diagnostics queries is failuring

[hanhaka]

Affected components: UI Affected documentation: - Estimated delivery: Q2/2017 External reference: https://jira.csc.fi/browse/PVAYLADEV-783

Problem Diagnostics UI is broken and it does not shown data correctly if one of the diagnostics related queries is failuring => this is leading to the situation that the whole UI page does not show data at all, not even the data that is queried successfully.

UI should shown the data that is queried successfully and not completely be broken just because of one of diagnostics is failuring.

How to reproduce (intentionally) the problem:

• Set off the messagelog comopnent (for example, rename usr/share/xroad/jlib/addon/proxy/messagelog.conf
• Restart xroad-proxy service
• Navigate to Diagnostics UI page
• Diagnostics UI page is broken and is giving error message "A JSON text must at least contain two octets!"

Acceptance criteria

• Diagnostic UI is shown even if one or some of the data is invalid/not correctly queried

[hanhaka]

Fixed in v.6.16.0. See: https://github.com/ria-ee/X-Road/pull/50