8157344: Multiple test timeouts after push for JDK-8141039
8156606: java/security/SecureRandom/Serialize.java gets time out in Linux
Reviewed-by: weijun

8051408: NIST SP 800-90A SecureRandom implementations
Reviewed-by: wetmore, xuelei, coffeys

6943119: Rebrand source copyright notices
Reviewed-by: darcy, weijun

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