[Coverity] Wrap main() with try-catch block (#1839950)

[dkjung]

To address coverity issue #1839950, the main function is wrapped with try-catch block.

Self evaluation:

1. Build test: [*]Passed [ ]Failed [ ]Skipped
2. Run test: [*]Passed [ ]Failed [ ]Skipped

[jijoongmoon]

Do we really have to wrap the main with try and catch?

[myungjoo]

Anyway.. do you need nested try here?

try {
} catch(A) { ... }
catch(B) { ... }
catch(C) { ... }

is generally better than

try {
   try {
   } catch (B) { ... }
   try {
   } catch (A) { ... }
} catch(C) { ...}

[dkjung]

@jijoongmoon @myungjoo

The Coverity issue didn't specify the line where the unhandled exception (std::bad_array_new exception) could possibly be thrown, so I covered the whole the main function with a try-catch block.

[dkjung]

Anyway.. do you need nested try here?

try {
} catch(A) { ... }
catch(B) { ... }
catch(C) { ... }

is generally better than

try {
   try {
   } catch (B) { ... }
   try {
   } catch (A) { ... }
} catch(C) { ...}

Now I fixed it. I missed the exception-throwing line that the issue had reported.

[DonghakPark]

LGTM!