On Fri, 11 Feb 2022 20:36:26 GMT, Tim Prinzing <d...@openjdk.java.net> wrote:
> JDK-8281000 ClassLoader::registerAsParallelCapable throws NPE if caller is > null Thanks for taking on these null caller issue. To give more context to this issue, the spec of `ClassLoader::isRegisteredAsParallelCapable` returns true if this class loader is registered as parallel capable, otherwise false. The current spec does not specify what if the caller class is not a class loader. The current implementation throws NPE if caller is null. I initially proposed to return false for simplicity. However, if the caller is not a subclass of `ClassLoader`, the current implementation throws `ClassCastException`. Both cases are invalid caller and they should be handled in the same way, either return false or throw an exception. Having a second thought, since this API expects to be called by a class loader, I think throwing `IllegalCallerException` to indicate this method is called by an illegal caller. This will need a CSR due to the spec change. What do you think? ------------- PR: https://git.openjdk.java.net/jdk/pull/7448
