IVY Unresolved dependencies GWT 2.7.0 - gwt

Question

I'm trying to resolve the following dependencies using IVY 2.5.0-rc1 where gwt.version=[2.7.0, 2.8.0, 2.8.2] and I'm pointing to https://jcenter.bintray.com/ as a repository
<dependency org="com.google.gwt" name="gwt-user" rev="${gwt.version}"
conf="gwt-compile, compile->master"/>
<dependency org="com.google.gwt" name="gwt-dev" rev="${gwt.version}"
conf="compile, gwt-compile->master" />
<dependency org="com.google.gwt" name="gwt-servlet" rev="${gwt.version}"
conf="compile, gwt-compile, war-libs->master" />
This results in the following output
[ivy:resolve] :: problems summary ::
[ivy:resolve] :::: WARNINGS
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:resolve] :: UNRESOLVED DEPENDENCIES ::
[ivy:resolve] ::::::::::::::::::::::::::::::::::::::::::::::
[ivy:resolve] :: com.google.gwt#gwt-user;2.7.0: com.google.gwt#gwt;2.7.0->org.sonatype.oss#oss-parent;4
[ivy:resolve] :: com.google.gwt#gwt-dev;2.7.0: com.google.gwt#gwt;2.7.0->org.sonatype.oss#oss-parent;4
[ivy:resolve] :: com.google.gwt#gwt-servlet;2.7.0: com.google.gwt#gwt;2.7.0->org.sonatype.oss#oss-parent;4
The org.sonatype.oss#oss-parent;4 appears to exist in the repository https://jcenter.bintray.com/org/sonatype/oss/oss-parent/
I've tried using excludes for oss-parent both at the dependency and dependencies level without success. I've also tried setting the transitive=false attribute on the gwt dependency elements.
The only relevant post I could find was this, which has no response.
I also saw the following deprecation warning regarding oss-parent
Sonatype OSS Parent poms - oss-parents
DEPRECATION WARNING:
This project is no longer active or supported. We suggest to manage parent POM files for your own organization as needed. The POM files from this project no longer work with latest Maven and/or Java versions.
For deployments to the Central Repository and the needed setup, please refer to http://central.sonatype.org

Answer 1

This is due to the following bug in ivy 2.5.0-rc1: https://issues.apache.org/jira/browse/IVY-1588
The best workaround I've found until they push out a release with the fix they implemented is to downgrade to ivy 2.4