RFR: 8354327: Rewrite runtime/LoadClass/LoadClassNegative.java [v4]

[Anton Artemov]

> Rewrote the test  runtime/LoadClass/LoadClassNegative so that it creates an empty jar file on the fly and then removes it. Previously existing dummy.jar removed.

Anton Artemov has updated the pull request incrementally with one additional commit since the last revision:

  8354327: Addressed reviewer's comments.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24688/files
  - new: https://git.openjdk.org/jdk/pull/24688/files/5e3f2426..f1cdc8cf

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24688&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24688&range=02-03

  Stats: 4 lines in 1 file changed: 0 ins; 1 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/24688.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24688/head:pull/24688

PR: https://git.openjdk.org/jdk/pull/24688