Build fails on JDK 11 and above

[gtudan]

Issue Overview

The project currently does not build with JDK 11.

There are quiet a few issues here:

• the fabric8 clients rely on an old Version of io.sundr:builder-annotations which need tools.jar
  • can probably be excluded or updated
• some unit tests fail
• the sun.net.spi.nameservice SPI is no longer there in >JDK9.
  • this keeps the project from compiling
  • Our custom lookups (used for open shift) don't work on any JRE greater than 8

`./mvnw --version`

``` Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T17:41:47+01:00) Maven home: /Users/gregor.tudan/.m2/wrapper/dists/apache-maven-3.3.9-bin/2609u9g41na2l7ogackmif6fj2/apache-maven-3.3.9 Java version: 11.0.19, vendor: Homebrew Java home: /opt/homebrew/Cellar/openjdk@11/11.0.19/libexec/openjdk.jdk/Contents/Home Default locale: de_DE, platform encoding: UTF-8 OS name: "mac os x", version: "13.3.1", arch: "aarch64", family: "Mac" ```