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

[Daniel Hu]

These changes should prevent entire binary files from being loaded into memory for build/AbsPathsInImage.java test. I chose a default buffer size of 8KB since BufferedInputStream uses that, but open to alternative solutions. GHA passes and test passes on linux x64.

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Commit messages:
 - remove 8341024
 - remove trailing whitespace
 - fix

Changes: https://git.openjdk.org/jdk/pull/26030/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26030&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8341735
  Stats: 23 lines in 1 file changed: 13 ins; 1 del; 9 mod
  Patch: https://git.openjdk.org/jdk/pull/26030.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26030/head:pull/26030

PR: https://git.openjdk.org/jdk/pull/26030