RFR: 8272608: java_lang_System::allow_security_manager() doesn't set its initialization flag

Tue Sep 7 04:05:54 UTC 2021

Originally the initialized flag was always false causing the System fields to be read each time the method is called. The flag is now set the first time it runs.
Tested with tier1, specifically with runtime/logging/ProtectionDomainVerificationTest.java.

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Commit messages:
 - Set initialized to true

Changes: https://git.openjdk.java.net/jdk/pull/5268/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5268&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8272608
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5268.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5268/head:pull/5268

PR: https://git.openjdk.java.net/jdk/pull/5268