P4
per the discussion begun in https://mail.openjdk.java.net/pipermail/jdk-dev/2019-October/003480.html this change removes the following JLS rule from section 11.2.3:
"It is a compile-time error if a catch clause can catch checked exception class E1
and it is not the case that the try block corresponding to the
catch clause can
throw a checked exception class that is a subclass or superclass of
E1, unless E1
is Exception or a superclass of Exception."
and converting the javac error message for this condition to a warning.
The necessary patch required for this change is brief and will be posted as a webrev or PR once I remember how to do that again. ;-)
"It is a compile-time error if a catch clause can catch checked exception class E1
and it is not the case that the try block corresponding to the
catch clause can
throw a checked exception class that is a subclass or superclass of
E1, unless E1
is Exception or a superclass of Exception."
and converting the javac error message for this condition to a warning.
The necessary patch required for this change is brief and will be posted as a webrev or PR once I remember how to do that again. ;-)