On Mon, 7 Dec 2020 19:51:38 GMT, Harold Seigel <hsei...@openjdk.org> wrote:
> Please review this fix for JDK-8256867. This change no longer throws a > ClassFormatError exception when loading a class whose PermittedSubclasses > attribute is empty (contains no classes). Instead, the class is treated as a > sealed class which cannot be extended nor implemented. This new behavior > conforms to the JVM Spec. > > This change required changing Class.permittedSubclasses() to return an empty > array for classes with empty PermittedSubclasses attributes, and to return > null for non-sealed classes. > > This fix was tested with Mach5 tiers 1-2 on Linux, MacOS, and Windows, and > tiers 3-5 on Linux x64. > > Thanks, Harold This pull request has now been integrated. Changeset: d33a689b Author: Harold Seigel <hsei...@openjdk.org> URL: https://git.openjdk.java.net/jdk/commit/d33a689b Stats: 167 lines in 8 files changed: 106 ins; 13 del; 48 mod 8256867: Classes with empty PermittedSubclasses attribute cannot be extended Reviewed-by: lfoltan, mchung, jlahoda, chegar ------------- PR: https://git.openjdk.java.net/jdk/pull/1675
