This change implements a new service provider interface for host name and address resolution, so that java.net.InetAddress API can make use of resolvers other than the platform's built-in resolver.
The following API classes are added to `java.net.spi` package to facilitate this: - `InetAddressResolverProvider` - abstract class defining a service, and is, essentially, a factory for `InetAddressResolver` resolvers. - `InetAddressResolverProvider.Configuration ` - an interface describing the platform's built-in configuration for resolution operations that could be used to bootstrap a resolver construction, or to implement partial delegation of lookup operations. - `InetAddressResolver` - an interface that defines methods for the fundamental forward and reverse lookup operations. - `InetAddressResolver.LookupPolicy` - a class whose instances describe the characteristics of one forward lookup operation. More details in [JEP-418](https://openjdk.java.net/jeps/418). Testing: new and existing `tier1:tier3` tests ------------- Commit messages: - 8244202: Implementation of JEP 418: Internet-Address Resolution SPI Changes: https://git.openjdk.java.net/jdk/pull/5822/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5822&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8244202 Stats: 2779 lines in 50 files changed: 2524 ins; 134 del; 121 mod Patch: https://git.openjdk.java.net/jdk/pull/5822.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/5822/head:pull/5822 PR: https://git.openjdk.java.net/jdk/pull/5822
