JOC Cockpit should not throw an exception on using äöüÄÖÜ in job parameter value

Current Situation

When using the äöüÄÖÜ character in the job parameter from the JOC-Cockpit. The error message occurred:

JOC-400
JobSchedulerBadRequestException: XmlException: com.fasterxml.aalto.WFCException: Unexpected end-of-input when trying to parse START_ELEMENT at [row,col {unknown-source}]: [1,65] - In <sos.spooler.variable_set> (:1:1)

How to Reproduce

• Login to the JOC-Cockpit.
• Click on Jobs tabs view.
• Start any standalone job using the option "Start Task Parameterized" from the action menu of the job.
• Add a new parameter with the name "A" and value "äöü".
• Submit the task.
• The JOC-Cockpit throws the above mention exception.

Desired Behavior

It should be possible to handle the job parameter with äöüÄÖÜ as a value from the JOC Cockpit.

Workaround

This issue depends on the used characterset in the database table field SCHEDULER_HISTORY.PARAMETERS.
An "ALTER TABLE" statement solves this issue. The characterset 'Latin1' is necessary.
Here the MySQL statements:

update SCHEDULER_HISTORY set "PARAMETERS" = null where "PARAMETERS" is not null and "PARAMETERS" not like '%</sos.spooler.variable_set>%';

ALTER TABLE SCHEDULER_HISTORY MODIFY "PARAMETERS" LONGTEXT CHARACTER SET latin1;