[wicket] branch wicket-8.x updated: updated building instructions

[ad...@apache.org]

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adelbene pushed a commit to branch wicket-8.x
in repository https://gitbox.apache.org/repos/asf/wicket.git


The following commit(s) were added to refs/heads/wicket-8.x by this push:
     new bb35b49  updated building instructions
bb35b49 is described below

commit bb35b499cf2f48e729278cc3daa50d77acaa0903
Author: Andrea Del Bene <ad...@apache.org>
AuthorDate: Sat Feb 9 16:25:11 2019 +0100

    updated building instructions
---
 README.md | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index a17dd27..6849c7d 100644
--- a/README.md
+++ b/README.md
@@ -193,10 +193,11 @@ The Wicket distribution contains the final Wicket jar. You can use this
 directly in your applications. The Wicket project also uploads the source 
 and JavaDoc jars as well as the final jar to the Maven repository used by
 the Maven build tool. So there is actually no specific need to build Wicket
-yourself from the distribution.
+yourself from the distribution. Nontheless, if you wish to build Wicket from 
+source you can follow these instructions:
 
-Building using Maven 2 or 3, change the working directory to src and either
-do:
+##### With a JDK 8 as default Java distribution
+With Maven either do:
 
  - mvn package
 
@@ -207,6 +208,14 @@ do:
     creates wicket-x.y.z.jar in target/ subdirectory and installs the file
     into your local Maven repository for use in other projects.
 
+##### With a JDK 11 (or newer) as default Java distribution
+Due to the changes introduced after Java 8 the building process must uses
+Maven Toolchains plugin (https://maven.apache.org/guides/mini/guide-using-toolchains.html)
+so you must have Maven properly configured to find a JDK 8 distribution on your machine.
+Then you have to run Maven commands activating profiles `buildbot` and `jdk11`
+
+  mvn install -Pbuildbot,jdk11
+
 Migrating from 7.x
 ------------------