JDK-8337220 : AccessFlags validation should respect ClassFile version
  • Type: Bug
  • Component: core-libs
  • Sub-Component: java.lang.classfile
  • Affected Version: 24
  • Priority: P4
  • Status: Closed
  • Resolution: Won't Fix
  • Submitted: 2024-07-25
  • Updated: 2025-11-12
  • Resolved: 2025-11-12
Related Reports
Blocks :  
JDK-8297271 - AccessFlag.maskToAccessFlags should be specific to class file version
Blocks :  
JDK-8337219 - AccessFlags factories do not require necessary arguments
Relates :  
JDK-8366270 - [lworld] Fix ClassFile AccessFlagsTest
Description
Currently, `AccessFlags` validation does not respect ClassFile version; for example, we currently rejects using `AccessFlag.STRICT` on methods if we generate major version 52 (Java 8) bytecode. With the update to AccessFlags creation, we can capture the class file version from builder context to create the flags bound to the right versions.
Comments
We decide not to reject obsolete flags for compatibility.
12-11-2025