On Tue, 26 Oct 2021 22:51:29 GMT, Mandy Chung <mch...@openjdk.org> wrote:
> On, macOS 11.x, system libraries are loaded from dynamic linker cache. The
> libraries are no longer present on the filesystem.
> `NativeLibraries::loadLibrary` checks for the file existence before calling
> `JVM_LoadLibrary`. Such check no longer applies on Big Sur. This proposes
> that on macOS >= 11, it will skip the file existence check and attempt to
> load a library for each path from java.library.path and system library path.
src/java.base/macosx/classes/jdk/internal/loader/ClassLoaderHelper.java line 44:
> 42: } catch (NumberFormatException e) {}
> 43: }
> 44: hasDynamicLoaderCache = major >= 11;
Hello Mandy,
I'm not too familiar with MacOS versioning schemes. However, in this specific
logic, if the `os.version` value doesn't contain a dot character, then the
`major` is initialized to `11`, which would then evaluate this
`hasDynamicLoaderCache` to `true`. That would mean if the `os.version` is (for
example) `10`, then `hasDynamicLoaderCache` will be incorrectly set to `true`
here, isn't it?
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PR: https://git.openjdk.java.net/jdk/pull/6127
