Added logs for refreshing cache to see if there is a concurrent call …

…to update cache which leads to sequence errors

sts-spring/src/main/java/de/adorsys/sts/ApplicationEventListener.java

@@ -0,0 +1,24 @@
+package de.adorsys.sts;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.context.event.ApplicationReadyEvent;
+import org.springframework.context.event.ContextClosedEvent;
+import org.springframework.context.event.EventListener;
+import org.springframework.stereotype.Component;
+
+@Component
+public class ApplicationEventListener {
+
+    private static final Logger log = LoggerFactory.getLogger(ApplicationEventListener.class);
+
+    @EventListener(ApplicationReadyEvent.class)
+    public void applicationReadyEvent() {
+        log.info("Application started");
+    }
+
+    @EventListener(ContextClosedEvent.class)
+    public void contextClosedEvent() {
+        log.info("Application stopped");
+    }
+}