[jdk17u-dev] RFR: 8281234: The -protected option is not always checked in keytool and jarsigner

[Goetz Lindenmaier]

I would like to fix this issue in 17. I think it's important to get this feature rigtht.

I had to work around missing "8281175: Add a -providerPath option to jarsigner" in the test, else the patch would be clean.

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Commit messages:
 - Backport fc918a73d0dcc28146e60f15e978209424a32576

Changes: https://git.openjdk.org/jdk17u-dev/pull/3163/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3163&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8281234
  Stats: 203 lines in 4 files changed: 199 ins; 0 del; 4 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3163.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3163/head:pull/3163

PR: https://git.openjdk.org/jdk17u-dev/pull/3163