[IVY-1569] Illegal access warnings with Java 9

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.0, 2.4.0
• Fix Version/s: 2.5.0-rc1
• Component/s: Core

Environment

Java 9.0.1

• Assignee: Gintas Grigelionis
• Reporter: Wouter van Reeven
• Created: 23/Nov/17 20:27
• Updated: 26/Sep/19 03:41
• Resolved: 17/Mar/18 09:29

Description

When doing an ant ivy:resolve with Java 9, an illegal access warning is logged:

resolve:
[ivy:retrieve] :: Apache Ivy 2.3.0 - 20130110142753 :: http://ant.apache.org/ivy/ ::
[ivy:retrieve] :: loading settings :: file = common/conf/ivysettings.xml
[ivy:retrieve] :: resolving dependencies :: XXXX
[ivy:retrieve] confs: [compile, runtime, ext]
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.ivy.util.url.IvyAuthenticator (file:common/lib/ivy-2.3.0.jar) to field java.net.Authenticator.theAuthenticator
WARNING: Please consider reporting this to the maintainers of org.apache.ivy.util.url.IvyAuthenticator
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

There is a workaround which is to use --add-opens command line options to the invocation of java but unfortunately this cannot be done when using ivy in Ant. Please revise the code and fix this . Many thanks in advance!