While `SymbolLookup` correctly uses an `Optional` return to denote whether a symbol has been found by the lookup or not (which enables composition of symbol lookups), many clients end up just calling `Optional::get`, or `Optional::orElseThrow()` on the result.
This PR proposes to add a convenience method `SymbolLookup::findOrThrow` that will do a lookup and, if no symbol can be found, throws an `IllegalArgumentException` with a relevant exception message. ------------- Commit messages: - Remove white space - Add SymbolLookup::findOrThrow Changes: https://git.openjdk.org/jdk/pull/18474/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18474&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8314592 Stats: 93 lines in 21 files changed: 30 ins; 0 del; 63 mod Patch: https://git.openjdk.org/jdk/pull/18474.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18474/head:pull/18474 PR: https://git.openjdk.org/jdk/pull/18474
