Support for try..catch

[v1r3n]

Proposal

Support a notation of try.. catch that allows executes a sequence of tasks in a try block and if one or more them fails catch the failures in the catch block to execute additional tasks - which can be used to compensate etc.

JSON structure:

{
  "type": "TRY",
  "try": [
     //list of task - includes simple, system, nested like decision, fork/join etc
  ],
  "catch": {
    "onFailed": ["task1", "task2] //list of task reference names whose failures should trigger the catch block, or "*" to catch any
     "tasks": [
             //list of compensating tasks to be scheduled
      ]
  }
}