RFR: 8285452: Add a new test library API to replace a file content using FileUtils.java [v4]

[Weijun Wang]

On Fri, 29 Apr 2022 10:36:50 GMT, Sibabrata Sahoo <ssahoo at openjdk.org> wrote:

>> A new API to support replacing selective lines with desired content.
>
> Sibabrata Sahoo has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8285452: Add a new test library API to replace a file content using FileUtils.java

test/lib/jdk/test/lib/util/FileUtils.java line 396:

> 394:                 removed += lines.remove(fromLine - 1).trim();
> 395:             }
> 396:             var froms = Arrays.asList(from.split(System.lineSeparator())).stream()

How about just using `from.lines()`?

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PR: https://git.openjdk.java.net/jdk/pull/8360