[jdk18u] Integrated: 8281183: RandomGenerator:NextDouble() default behavior partially fixed by JDK-8280950

[Joe Darcy]

8281183: RandomGenerator:NextDouble() default behavior partially fixed by JDK-8280950

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Commit messages:
 - Backport 77b0240d44fd356711d75bc241e198f6f89ada8f

Changes: https://git.openjdk.java.net/jdk18u/pull/23/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18u&pr=23&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8281183
  Stats: 7 lines in 2 files changed: 3 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk18u/pull/23.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18u pull/23/head:pull/23

PR: https://git.openjdk.java.net/jdk18u/pull/23