improved exception handling in response log filter (#8715)

* example code for BAEL-3749

* added live test

* added live test

* improved exception handling in response log filter

spring-cloud/spring-cloud-zuul/spring-zuul-post-filter/src/main/java/com/baeldung/filters/ResponseLogFilter.java

@@ -49,8 +49,8 @@ public class ResponseLogFilter extends ZuulFilter {
 
             context.setResponseBody(responseData);
         }
-        catch (Throwable e) {
+        catch (Exception e) {
-            e.printStackTrace();
+            logger.error("error occurred at response log filter", e);
         }
 
         return null;