RFR 8187222 : ClassLoader.getSystemClassLoader not clear if recursive initialization leads to ISE or unspecified error

[Alan Bateman]

On 30/11/2017 22:57, mandy chung wrote:
> :
>
> This is indeed a bug that should throw ISE when 
> ClassLoader.getSystemClassLoader is called during the initialization 
> of the system class loader, as the spec states.
>
> line 1921: I suggest to revise the message to make it clearer:
>      "getSystemClassLoader cannot be called during the system class 
> loader instantiation"
>
> In ClassLoader::initSystemClassLoader (line 1971), when the exception 
> is thrown via Constructor::newInstance, it would be good to the cause 
> of an InvocationTargetException like:
>
> +                Throwable t = e;
> +                if (e instanceof InvocationTargetException) {
> +                    t = e.getCause();
> +                }
> +                throw new Error(t.getMessage(), t);
Better still might be for initSystemClassLoader to re-throw the cause so 
that it appears immediately after the "Error occurred during 
initialization of VM" message that the VM will fail with.

-Alan