RFR: 8335150: Test LogGeneratedClassesTest.java fails on rpmbuild mock enviroment [v2]

[SendaoYan]

> Hi all,
> Test `test/jdk/java/lang/invoke/lambda/LogGeneratedClassesTest.java` fails on rpm build mock environment. The `df -h` command return fail `df: cannot read table of mounted file systems: No such file or directory` on the rpm build mock environment also. I think it's a environmental issue, and the environmental issue should not cause the test fails, it should skip the test.
> 
> Only change the testcase, the change has been verified locally, no risk.

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

  add a word throw

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/19905/files
  - new: https://git.openjdk.org/jdk/pull/19905/files/54ac1747..8931debe

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19905&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19905&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/19905.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19905/head:pull/19905

PR: https://git.openjdk.org/jdk/pull/19905