Description
The ceylon-maven-example with the fix to run on JDK 9+ was not released for some time and it's causing issues in the camel-example-ceylon.
We should delete this example or remove it from examples module in Java 9+ profile
[ERROR] Failed to execute goal org.ceylon-lang:ceylon-maven-plugin:1.3.3:compile (compile) on project camel-example-ceylon: Execution compile of goal org.ceylon-lang:ceylon-maven-plugin:1.3.3:compile failed: invalid source release: 0 -> [Help 3] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.ceylon-lang:ceylon-maven-plugin:1.3.3:compile (compile) on project camel-example-ceylon: Execution compile of goal org.ceylon-lang:ceylon-maven-plugin:1.3.3:compile failed: invalid source release: 0