> 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
Harold Seigel has updated the pull request incrementally with one additional commit since the last revision: 8256867: Classes with empty PermittedSubclasses attribute cannot be extended ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/1675/files - new: https://git.openjdk.java.net/jdk/pull/1675/files/89c61b95..de461457 Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1675&range=01 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1675&range=00-01 Stats: 12 lines in 2 files changed: 6 ins; 0 del; 6 mod Patch: https://git.openjdk.java.net/jdk/pull/1675.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/1675/head:pull/1675 PR: https://git.openjdk.java.net/jdk/pull/1675