Polyflow JPA view: Sort ignores direction

[StephanStrehlerCGI]

Steps to reproduce

1. Adding direction order check to SpecificationTest#'creates a paged request'
2. Running test

• camunda-bpm-taskpool version: latest
• Camunda BPM version: -
• JDK version: 11
• Operating system: Windows 10
• Complete executable reproducer: merge request follows directly
• Steps: -

Expected behaviour

first char '+' should return a ascending result first char '-' should return a descending result

Actual behaviour

default sort direction of JPA is used ignoring first char. Internally it throws an IllegalArgumentException in Sort.Direction.fromString

(In case of exceptions provide full stack trace)

[zambrovski]

Thanks for reporting and for the fix.