Allow compilation of deployment example under JDK8 and 11 (#438)

* Allow compilation of deployment example under JDK8 and 11

Author: tmiddlet2666

README.md

@@ -40,12 +40,12 @@ to the kubernetes zone label on the associated pod.
 Kibana (EFK) stack), and Prometheus to monitor the performance, logs, and health of your clusters.
 
 -------
-The current release of the operator is 3.0.0
+The current release of the operator is 3.0.1
 
-Documentation for the Coherence Operator is available [here](https://oracle.github.io/coherence-operator/docs/3.0.0)
+Documentation for the Coherence Operator is available [here](https://oracle.github.io/coherence-operator/docs/3.0.1)
 
 The fastest way to experience the operator is to follow the 
-[Quick Start guide](https://oracle.github.io/coherence-operator/docs/3.0.0/#/about/03_quickstart).
+[Quick Start guide](https://oracle.github.io/coherence-operator/docs/3.0.1/#/about/03_quickstart).
 -------
 
 # Need more help? Have a suggestion? Come and say "Hello!"

examples/deployment/README.md

@@ -38,14 +38,14 @@ You can use `kubectl create` for any of the examples to install that one directl
 
 ## Coherence Operator Quick Start
 
-Ensure you have followed all the [Quick Start Guide](https://oracle.github.io/coherence-operator/docs/#/about/03_quickstart) including the
+Ensure you have followed all the [Quick Start Guide](https://oracle.github.io/coherence-operator/docs/3.0.1/#/about/03_quickstart) including the
 prerequisites and have been able to successfully install the Coherence Operator and a Coherence Cluster.
 
 ## Software Versions
 
 Ensure you have the following software installed:
 
-* [Java 11+ JDK](http://jdk.java.net/)
+* [Java 8+ JDK](http://jdk.java.net/)
 * [Maven](https://maven.apache.org) version 3.6.0+
 * [Docker](https://docs.docker.com/install/) version 17.03+.
 * [kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl/) version v1.12.0+ .
@@ -92,6 +92,9 @@ following command to build the projects and associated Docker images:
 mvn clean install -P docker
 ```            
 
+> Note: If you want to change the Coherence version from the default of 14.1.1-0-1 to 20.06, then 
+> you can supply the -Dcoherence.version=20.06 for the mvn commands below. You must also use JDK11.
+
 > Note: If you are running behind a corporate proxy and receive the following message building the 
 > Docker image:
 > `Connect to gcr.io:443 [gcr.io/172.217.212.82] failed: connect timed out` you must modify the build command 

examples/deployment/pom.xml

@@ -83,7 +83,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>${maven.compiler.plugin.version}</version>
         <configuration>
-          <release>8</release>
+          <source>${maven.compiler.source}</source>
+          <target>${maven.compiler.target}</target>
         </configuration>
       </plugin>