RFR: 8278028: [test-library] Warnings cleanup of the test library [v2]

[Leonid Mesnik]

On Mon, 13 Dec 2021 20:58:50 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> Compilation warnings of the test library introduce noise in test output and should be addressed or suppressed. 
>> Changes include:
>>  - SuppressWarnings("deprecation") and SuppressWarnings("removal")
>>  - Adding type parameters to Raw types
>>  - Adding a hashCode method where equals was already present
>
> Roger Riggs has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:
> 
>  - Merge branch 'master' into 8278028-test-warning-cleanup
>  - Update copyrights
>  - 8278028: [test-library] Warnings cleanup of the test library

Is test/micro/org/openjdk/bench/java/io/SerialFilterOverhead.java  added accidentally or by purpose?

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PR: https://git.openjdk.java.net/jdk/pull/6638