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    Type:Bug Report 
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    Resolution: Fixed
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    Priority:L3 - Default 
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    Affects Version/s: None
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    Component/s: backend
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    None
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        Not defined
Brief summary of the bug. What is it ? Where is it ?
When we fetch the URLs to display in the app switcher, it is possible that a URL is returned for which we don't have a corresponding AppName enum. In this case, the url gets mapped to a null key, which is later resulting in a NPE and stopping Optimize from starting successfully.
ATs:
- Optimize can still start successfully even if a URL is returned that is not registered as a known AppName