8341735: Rewrite the build/AbsPathsInImage.java test to not load the entire file at once

[cost0much]

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8341735 needs maintainer approval

Issue

• JDK-8341735: Rewrite the build/AbsPathsInImage.java test to not load the entire file at once (Enhancement - P4)

Reviewing

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Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u-dev.git pull/2918/head:pull/2918
$ git checkout pull/2918

Update a local copy of the PR:
$ git checkout pull/2918
$ git pull https://git.openjdk.org/jdk21u-dev.git pull/2918/head

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$ git pr checkout 2918

View PR using the GUI difftool:
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https://git.openjdk.org/jdk21u-dev/pull/2918.diff

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[openjdk]

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See the Progress checklist in the description for automated requirements.

[openjdk]

This backport pull request has now been updated with issue from the original commit.