On Wed, 2 Mar 2022 18:56:40 GMT, Tim Prinzing <[email protected]> wrote:
> The caller class returned by Reflection::getCallerClass was used to gain
> access to it's module in most cases and class loader in one case. I added a
> method to translate the caller class to caller module so that the decision of
> what module represents the caller with no stack frame is made in a single
> place. Calls made to caller.getModule() were replaced with
> getCallerModule(caller) which returns the system class loader unnamed module
> if the caller is null.
>
> The one place a class loader was produced from the caller in getBundleImpl it
> was rewritten to route through the getCallerModule method:
>
> final ClassLoader loader = (caller != null) ?
> caller.getClassLoader() : getLoader(getCallerModule(caller));
>
> A JNI test was added which calls getBundle to fetch a test bundle from a
> location added to the classpath, fetches a string out of the bundle and
> verifies it, and calls clearCache.
>
> The javadoc was updated for the caller sensitive methods changed.
Instead of sprinkling the null caller text in the javadoc in each `getBundle`
method, we can specify that that in the class specification, for example, after
the "Resource bundles in other modules and class path" section.
In cases where the {@code getBundle} factory method is called from a context
where there is no caller frame on the stack (e.g. when called directly from
a JNI attached thread), the caller module is default to the unnamed module for
the
{@linkplain ClassLoader#getSystemClassLoader system class loader}.
What do you think?
src/java.base/share/classes/java/util/ResourceBundle.java line 1588:
> 1586: Control control) {
> 1587: final ClassLoader loader = (caller != null) ?
> 1588: caller.getClassLoader() :
> getLoader(getCallerModule(caller));
Suggestion:
ClassLoader loader = getLoader(getCallerModule(caller));
This can be simplified as above. I would drop `final` too as it only adds
noise to the code.
-------------
PR: https://git.openjdk.java.net/jdk/pull/7663
