Temporary fix for hikari datasource sealed causing refresh errors.

See gh-318

spring-cloud-context/src/main/java/org/springframework/cloud/context/properties/ConfigurationPropertiesRebinder.java

@@ -96,6 +96,11 @@ public class ConfigurationPropertiesRebinder
 				if (AopUtils.isAopProxy(bean)) {
 					bean = getTargetObject(bean);
 				}
+				// TODO: determine a more general approach to fix this.
+				// see https://github.com/spring-cloud/spring-cloud-commons/issues/318
+				if (bean.getClass().getName().equals("com.zaxxer.hikari.HikariDataSource")) {
+					return false; //ignore
+				}
 				this.applicationContext.getAutowireCapableBeanFactory().destroyBean(bean);
 				this.applicationContext.getAutowireCapableBeanFactory()
 						.initializeBean(bean, name);