`jdk.lambda.vm.InterfaceAccessFlagsTest` uses `ClassToInterfaceConverter` to mechanically convert a classfile for a Class into an in-memory class representation of an equivalent Interface. `testPrivateMethodCall` tests to invoke a private method. Before nestmates, invoking a private class method and a private interface method both use `Invokespecial`. With the nestmate changes, the class uses `invokevirtual` but the interface must use `invokeinterface` but this conversion is not handled by the existing `ClassToInterfaceConverter`.
This fix converts `ClassToInterfaceConverter` to use the Class-File API to properly convert a classfile from a class to an interface including method invocation from `invokevirtual` to `invokeinterface`. The old custom bytecode manipulation code can be dropped. ------------- Commit messages: - 8187655: InterfaceAccessFlagsTest.testPrivateMethodCall needs update after nestmates support Changes: https://git.openjdk.org/jdk/pull/16526/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16526&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8187655 Stats: 594 lines in 5 files changed: 5 ins; 538 del; 51 mod Patch: https://git.openjdk.org/jdk/pull/16526.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/16526/head:pull/16526 PR: https://git.openjdk.org/jdk/pull/16526
