The Signature modeling in the ClassFile API is missing some validations required by JVMS, notably identifier character restrictions and void type restrictions. In addition, the model currently uses `ClassDesc` to indicate a simple name for an inner class signature, which is incorrect, and this patch proposes to deprecate that API for removal.
------------- Commit messages: - 8368050: Validation missing in ClassFile signature factories Changes: https://git.openjdk.org/jdk/pull/27380/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27380&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8368050 Stats: 205 lines in 5 files changed: 178 ins; 4 del; 23 mod Patch: https://git.openjdk.org/jdk/pull/27380.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/27380/head:pull/27380 PR: https://git.openjdk.org/jdk/pull/27380
