RFR: 8366359: Test should throw SkippedException when there is no lpstat [v4]

[SendaoYan]

> Hi all,
> 
> I think test javax/print/PrintServiceLookup/CountPrintServices.java should throw jtreg.SkippedException when there is no lpstat, rather that report test failure.
> 
> Only javax/print/PrintServiceLookup/CountPrintServices.java invokes lpstat explicitly.
> 
> Change has been verified locally, test-fix only, no risk.

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

  1. add import java.io.IOException; 2. Re-throw the IOException if do not throw SkippeException

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/26988/files
  - new: https://git.openjdk.org/jdk/pull/26988/files/7598971d..62fbc672

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26988&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26988&range=02-03

  Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/26988.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26988/head:pull/26988

PR: https://git.openjdk.org/jdk/pull/26988