OZG-3665 remove spring boot exit command

xta-adapter/src/main/java/de/ozgcloud/eingang/xta/XtaRunner.java

 package de.ozgcloud.eingang.xta;
 
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.SpringApplication;
-import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationListener;
 import org.springframework.context.annotation.Profile;
 import org.springframework.context.event.ContextRefreshedEvent;
@@ -23,15 +21,10 @@ class XtaRunner implements ApplicationListener<ContextRefreshedEvent> {
 	@Autowired
 	private SemantikAdapter semantikAdapter;
 
-	@Autowired
-	private ApplicationContext context;
-
 	@Override
 	public void onApplicationEvent(ContextRefreshedEvent event) {
 		LOG.info("Fetching XTA Messages");
 		runGetXtaMessages();
-
-		SpringApplication.exit(context, () -> 0);
 	}
 
 	void runGetXtaMessages() {