RFR: 8343178: Test BasicTest.java javac compile fails cannot find symbol

[SendaoYan]

Hi all,
The test `tools/jpackage/share/jdk/jpackage/tests/BasicTest.java` javac compile fails `cannot find symbol TKit.assertPathNotEmptyDirectory` after JDK-8343178. I think we should use `TKit.assertDirectoryNotEmpty` instead of `TKit.assertPathNotEmptyDirectory`.
The change has been verified locally on linux-x64, test-fix only , no risk.

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Commit messages:
 - 8343178: Test BasicTest.java javac compile fails cannot find symbol

Changes: https://git.openjdk.org/jdk/pull/21750/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21750&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8343178
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/21750.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21750/head:pull/21750

PR: https://git.openjdk.org/jdk/pull/21750