RFR: JDK-8315897: some PrivilegedActions missing in JDK code for getting properties

[Matthias Baesken]

There are some remaining places in 'general' JDK code (= code not related to e.g. a specific tool) getting properties like :

osName = System.getProperty(os.name)

https://github.com/openjdk/jdk/blob/master/src/java.management/share/classes/sun/management/VMManagementImpl.java#L225

https://github.com/openjdk/jdk/blob/master/src/java.desktop/share/classes/sun/awt/FontConfiguration.java#L134

Those should be a PrivilegedAction .

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Commit messages:
 - JDK-8315897

Changes: https://git.openjdk.org/jdk/pull/15629/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15629&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315897
  Stats: 57 lines in 2 files changed: 36 ins; 4 del; 17 mod
  Patch: https://git.openjdk.org/jdk/pull/15629.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15629/head:pull/15629

PR: https://git.openjdk.org/jdk/pull/15629