RFR: 8284853: Fix varios 'expected' typo

[Andrey Turbanov]

Found various typos of expected: `exepected`, `exept`, `epectedly`, `expeced`, `Unexpeted`, etc.

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Commit messages:
 - [PATCH] Fix 'expected' typo
 - [PATCH] Fix 'expected' typo
 - [PATCH] Fix 'expected' typo

Changes: https://git.openjdk.java.net/jdk/pull/8231/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8231&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8284853
  Stats: 65 lines in 28 files changed: 0 ins; 0 del; 65 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8231.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8231/head:pull/8231

PR: https://git.openjdk.java.net/jdk/pull/8231