[CAUSEWAY-1955] Allow for ErrorReportingService Tickets to render arbitrary HTML

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Resolved
• Fix Version/s: 2.0.0-M1
• Component/s: Core
• Assignee: Andi Huber
• Reporter: Andi Huber
• Created: 28/May/18 08:47
• Updated: 04/Jan/19 14:10
• Resolved: 28/May/18 12:27

Description

1. Refactor `org.apache.isis.applib.services.error.Ticket` into an interface.
2. Add a method `getMarkup()` that provides the html to be rendered.
3. Implement as SimpleTicket providing legacy rendering behavior, but allowing to override the actual html formatting.