RFR: JDK-8316778: test hprof lib: invalid array element type from JavaValueArray.elementSize

[Chris Plummer]

On Wed, 27 Sep 2023 21:34:37 GMT, Alex Menkov <amenkov at openjdk.org> wrote:

> The change fixes 2 issues in hprof test library.
> The issue were discovered during test development (logging values of dumped heap objects).
> - JavaValueArray.elementSize cannot determine size of the array elements and throws RuntimeException: invalid array element type
> - JavaObject.toString() method for dumped String objects tries to construct string value of the object from "value" field assuming "value" field is array of char. Actually it's byte array, so toString return array values like "{65, 66, 67}" (with fixed JavaValueArray.elementSize)

Just a minor nit. Otherwise looks good.

test/lib-test/jdk/test/lib/hprof/HprofTest.java line 43:

> 41: 
> 42: /**
> 43:  * @test

Add an `@bug`

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Marked as reviewed by cjplummer (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/15953#pullrequestreview-1649733063
PR Review Comment: https://git.openjdk.org/jdk/pull/15953#discussion_r1340682712