### Summary The changes in this PR add new API to `java.net.InetAddress`, `java.net.Inet4Address`, and `java.net.Inet6Address` classes to parse IP address literals: ``` method public static java.net.InetAddress java.net.InetAddress.ofLiteral(java.lang.String) method public static java.net.Inet4Address java.net.Inet4Address.ofLiteral(java.lang.String) method public static java.net.Inet6Address java.net.Inet6Address.ofLiteral(java.lang.String) ```
### How new methods differ from existing ones These methods differ from `InetAddress.getByName` and `InetAddress.getAllByName` in the following ways: 1. Address literal strings are not forwarded to the system-wide resolver - they are only parsed and validated by the internal methods. 2. No reverse lookup is performed to resolve a hostname for the supplied address literal - the `InetAddress[46 ]` instances returned by the new `ofLiteral` API has no hostname set. 3. Each `ofLiteral` static method returns addresses of its class only. It gives the ability to check if an IP address literal is of a specific address type. ### The list of noteworthy changes - `IPv4-mapped IPv6 address` and `IPv4-compatible IPv6 addresses` require some special handling in the new API to implement all supported IP address types. - All address literal parsing code has been moved from `InetAddress.getAllByName` to address type-specific `Inet4Address.parseAddressString` and `Inet6Address.parseAddressString` methods. - The text with scoped IPv6 addresses architecture draft IETF file has been replaced from `[draft-ietf-ipngwg-scoping-arch-04.txt]` to reference `RFC 4007: IPv6 Scoped Address Architecture`. The "RFC 4007" has been also added as `@ spec` into Inet6Address class-level Javadoc. ### Testing `jdk-tier1`, `jdk-tier2`, and `jdk-tier3` test sets show no failure with the changes. `java/net` JCK tests are failing with new methods added failure (CSR is planned for this change): Added Methods ------------- java.net.Inet4Address: method public static java.net.Inet4Address java.net.Inet4Address.ofLiteral(java.lang.String) java.net.Inet6Address: method public static java.net.Inet6Address java.net.Inet6Address.ofLiteral(java.lang.String) java.net.InetAddress: method public static java.net.InetAddress java.net.InetAddress.ofLiteral(java.lang.String) ------------- Commit messages: - 8272215: Add InetAddress methods for parsing IP address literals Changes: https://git.openjdk.org/jdk/pull/15775/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15775&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8272215 Stats: 514 lines in 6 files changed: 437 ins; 57 del; 20 mod Patch: https://git.openjdk.org/jdk/pull/15775.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/15775/head:pull/15775 PR: https://git.openjdk.org/jdk/pull/15775
