Deprecated reflective access

Before Jenkins 2.272 Stapler would access all fields ignoring visibility restrictions.

Stapler now tries to access a field first and only if it gets access denied then will it force access via javadoc:java.lang.reflect.AccessibleObject#setAccessible-boolean-[setAccessible(true)].

This behavior is not recommended anymore, and will trigger IllegalReflectiveAccess warnings when running Jenkins on Java 11.

If you see a warning message about this then you should report an issue to the respective plugin.

Dec 15, 2020 9:22:33 PM org.kohsuke.stapler.lang.FieldRef$1 get
WARNING: java.lang.IllegalAccessException: Processing this request relies on deprecated behavior that will be disallowed in future releases of Java. See https://jenkins.io/redirect/stapler-reflective-access/ for more information. Details: class org.kohsuke.stapler.lang.FieldRef$1 cannot access a member of class org.kohsuke.stapler.AncestorImplTest$Foo with modifiers "public"