[GitHub] autumnust opened a new pull request #2551: [GOBBLIN-680] Enhance error handling on task creation

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autumnust opened a new pull request #2551: [GOBBLIN-680] Enhance error handling on task creation
URL: https://github.com/apache/incubator-gobblin/pull/2551
 
 
   Dear Gobblin maintainers,
   
   Please accept this PR. I understand that it will not be reviewed until I have checked off all the steps below!
   
   In the process of creating `Task` object, especially in customized task execution framework, we usually see huge memory consumption in `Task` itself and it can run into `OutOfMemoryError` from time to time in one of our internal pipelines. `OutOfMemoryError` will not be caught by original implementation unfortunately since it is not an `Exception`. We added this implementation and corresponding testing code to make sure that, whenever there are virtual machine error like `OutOfMemoryError` happening, the `countDownLatch` is still being correctly handled. 
   
   
   ### JIRA
   - [x] My PR addresses the following [Gobblin JIRA](https://issues.apache.org/jira/browse/GOBBLIN/) issues and references them in the PR title. For example, "[GOBBLIN-680] My Gobblin PR"
       - https://issues.apache.org/jira/browse/GOBBLIN-680
   
   
   ### Description
   - [x] Here are some details about my PR, including screenshots (if applicable):
   
   
   ### Tests
   - [x] My PR adds the following unit tests __OR__ does not need testing for this extremely good reason:
   
   
   ### Commits
   - [x] My commits all reference JIRA issues in their subject lines, and I have squashed multiple commits if they address the same issue. In addition, my commits follow the guidelines from "[How to write a good git commit message](http://chris.beams.io/posts/git-commit/)":
       1. Subject is separated from body by a blank line
       2. Subject is limited to 50 characters
       3. Subject does not end with a period
       4. Subject uses the imperative mood ("add", not "adding")
       5. Body wraps at 72 characters
       6. Body explains "what" and "why", not "how"
   
   

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