Remove the unnecessary special case "OVERRIDE" in jdk.serialFilterFactory property. Fix description in the example of a filter allowing platform classes. Suppress some warnings about use of SecurityManager in tests.
------------- Commit messages: - JDK-8268827: Cleanup Implement Context-Specific Deserialization Filters Changes: https://git.openjdk.java.net/jdk17/pull/85/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk17&pr=85&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8268826 Stats: 29 lines in 4 files changed: 10 ins; 13 del; 6 mod Patch: https://git.openjdk.java.net/jdk17/pull/85.diff Fetch: git fetch https://git.openjdk.java.net/jdk17 pull/85/head:pull/85 PR: https://git.openjdk.java.net/jdk17/pull/85
