Those of you who haven't yet heard, the upcoming JDK 17 release will be
deprecating (for future removal) the SecurityManager classes and some of
the related infrastructure. The complete details of this proposed change
are explained here https://openjdk.java.net/jeps/411.
The initial changes around this are already available in an early access
release of JDK 17 which is available at https://jdk.java.net/17/
Ant is one of the projects that will be impacted since we internally
deal with Java's SecurityManager APIs especially when the "permissions"
type https://ant.apache.org/manual/Types/permissions.html is used in Ant
builds.
I think it would be good to hear from the users of Ant if/how they will
be impacted by these changes in the JDK and how severe that impact will
be. Please take a look at the JEP and even try out your project builds
using the latest early access of JDK and report any issues that you
might notice.
Please do remember that the proposed change for JDK 17 is making
SecurityManager deprecated for future removal and it is _not_ being
removed or its behaviour changed in JDK 17 (although you will start
seeing some diagnostic warning messages, from the JDK itself, bringing
to your attention this deprecation).
-Jaikiran
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