JDK-8236696 : Release Note: MethodHandles::privateLookupIn Might Not Produce a Lookup With Full Privilege Access
- Type: Sub-task
- Component: core-libs
- Sub-Component: java.lang.invoke
- Affected Version: 14
- Priority: P4
- Status: Closed
- Resolution: Delivered
- Submitted: 2020-01-06
- Updated: 2021-05-14
- Resolved: 2020-08-04
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| JDK 14 |
|---|
14Resolved  |
Description
The `Lookup` object produced by `MethodHandles::privateLookupIn` in this release might not have full privilege access. A `Lookup` that possesses both PRIVATE and MODULE access modes is said to possess full privilege access that can be tested with the `Lookup::hasFullPrivilegeAccess` method. In previous releases, a `Lookup` returned from `MethodHandles::privateLookupIn` could be used to look up caller-sensitive methods. In Java SE 14, if a `Lookup` does not have full privilege access (even though it has private access mode), it might fail to look up caller-sensitive methods.