Address nit and move prometheus-jmx-exporter examples into it's own directory

Signed-off-by: OwenCorrigan76 <[email protected]>

Author: OwenCorrigan76

cluster-operator/src/main/java/io/strimzi/operator/cluster/model/KafkaCluster.java

@@ -1869,7 +1869,7 @@ private String generatePerBrokerConfiguration(NodeRef node, KafkaPool pool, Map<
     public List<ConfigMap> generatePerBrokerConfigurationConfigMaps(MetricsAndLogging metricsAndLogging, Map<Integer, Map<String, String>> advertisedHostnames, Map<Integer, Map<String, String>> advertisedPorts)   {
         String parsedMetrics = null;
         if (metrics instanceof JmxPrometheusExporterModel exporter) {
-            parsedMetrics = (exporter).metricsJson(reconciliation, metricsAndLogging.metricsCm());
+            parsedMetrics = exporter.metricsJson(reconciliation, metricsAndLogging.metricsCm());
         }
         String parsedLogging = logging().loggingConfiguration(reconciliation, metricsAndLogging.loggingCm());
         List<ConfigMap> configMaps = new ArrayList<>();

packaging/examples/Makefile

@@ -4,7 +4,7 @@ include ../../Makefile.os
 
 RELEASE_VERSION ?= latest
 RELEASE_PATH ?= ../../strimzi-$(RELEASE_VERSION)/$(PROJECT_NAME)
-EXAMPLE_DASHBOARDS ?= metrics/grafana-dashboards/
+EXAMPLE_DASHBOARDS ?= metrics/prometheus-jmx-exporter/grafana-dashboards/
 HELM_CHART_DASHBOARD_PATH ?= ../helm-charts/helm3/strimzi-kafka-operator/files/grafana-dashboards/
 
 ifneq ($(RELEASE_VERSION),latest)

packaging/examples/metrics/prometheus-jmx-exporter/README.md

@@ -0,0 +1,4 @@
+# Metrics configuration examples
+
+The examples in this directory demonstrate how you can use configure metrics with Prometheus JMX Exporter Java agent.
+There are also some Grafana dashboards that you can use with them.