What problem does this code solve?
Adds Jacocoo to gradle build, restores location of method check in JSONObject.populateMap()

Does the code still compile with Java6?
Yes

Risks
Low

Changes to the API?
No

Will this require a new release?
No

Should the documentation be updated?
No

Does it break the unit tests?
No

Was any code refactored in this commit?
The JSONObject change was a refactor.

Review status
APPROVED - by myself

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