Remove unnecessary casting

[theresa-m]

Related to #20290 (review)

[keithc-ca]

Jenkins test sanity.functional alinuxval jdknext

[keithc-ca]

While reviewing this, I noticed several array declarations that until recently I would have thought just elicit compile errors. For example, the C-style declaration on line 265:

		String fields[] = {"x:I", "y:I"};

should put the brackets with the type:

		String[] fields = {"x:I", "y:I"};

When you get a chance, perhaps you could tidy up things like that too. Thanks.