Ruilei Ma

Add curly braces to the if statement to pass checkstyle, although it's not necessary.

4

### What changes were proposed in this pull request? 1. Add curly braces to the if statement to pass checkstyle, although it's not necessary. 2. Add space after token if....

…leting cache # Which issue does this PR close? Closes #. # Rationale for this change # What changes are included in this PR? # Are there any user-facing changes?...