> Update Class::isRecord to only return true for classes that are final. > > The removal of non-specified JVM checks on classes with a Record Attribute > (see JDK-8255342), has resulted in more types of loadable classes that may > contain a Record Attribute. Since these checks are not performed by the JVM > anymore, Class::isRecord, and by extension Class::getRecordComponents, may > return true or component values, respectively, for classes that are not > well-formed record classes (as per the JLS), .e.g. non-final or abstract > classes, that contain a record Attribute. > > Core Reflection, Class::isRecord, already asserts checks that the JVM does > not, e.g. that the direct superclass is java.lang.Record. Some points from > the Java Language Specification for record classes: > > 1. It is a compile-time error if a record declaration has the modifier > abstract. > 2. A record declaration is implicitly final. > 3. The direct superclass type of a record class is Record. > > Class::isRecord already ensures no.3. This issue proposes to add explicit > checks in Core Reflection to ensure no.1 and no.2, since the JVM now allows > such classes that contain a Record Attribute to be loaded.
Chris Hegarty has updated the pull request incrementally with one additional commit since the last revision: fix issue in ByteCodeLoader ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/1543/files - new: https://git.openjdk.java.net/jdk/pull/1543/files/1aa59363..4eb26488 Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1543&range=03 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1543&range=02-03 Stats: 16 lines in 1 file changed: 13 ins; 0 del; 3 mod Patch: https://git.openjdk.java.net/jdk/pull/1543.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/1543/head:pull/1543 PR: https://git.openjdk.java.net/jdk/pull/1543
