Change PwdGenerator to use the same implementation logic as jdk SecureRandom, but fetching from underneath source in batch

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.0 CE GA1
• Fix Version/s: 6.1.X EE, 6.2.1 CE GA2, 6.2.X EE
• Component/s: Security Vulnerability
• Labels:
  • liferay-fixpack-platform-1-6210
  • liferay-fixpack-platform-2-6210
  • liferay-fixpack-platform-22-6130
• Branch Version/s:
  6.2.x, 6.1.x
• Backported to Branch:
  Committed
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/15161

This is essentially doing the same thing as jdk SecureRandom, just we do fetch secure random number in batch from the underneath source to reduce synchronized system calls, then consume them in memory.