RFR: 8321519: Typo in exception message

[Daniel Jeliński]

This PR fixes a typo in exception message printed when `jdk.readPollers` or `jdk.writePollers` is not a power of two.

While at it, I searched the code for other instances of `vale`, and corrected them as well.

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Commit messages:
 - Fix vale->value

Changes: https://git.openjdk.org/jdk/pull/17016/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17016&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8321519
  Stats: 3 lines in 3 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/17016.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17016/head:pull/17016

PR: https://git.openjdk.org/jdk/pull/17016