我正在开发一个可以在Kubernetes中运行的spring boot应用程序。在开发过程中（在Windows和Linux中）是否存在错误，例如在spring属性中，我得到并为此错误作为日志输出的最后一行：
...
2019-01-11 11:17:45.372 WARN 15528 --- [ost-startStop-2] o.a.c.loader.WebappClassLoaderBase : The web application [easyprocesses] appears to have started a thread named [oracle.jdbc.driver.BlockSource.ThreadedCachingBlockSource.BlockReleaser] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Object.wait(Native Method)
oracle.jdbc.driver.BlockSource$ThreadedCachingBlockSource$BlockReleaser.run(BlockSource.java:327)
2019-01-11 11:17:45.407 ERROR 15528 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mailCreationProperties': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'mailcreation.sender.email-address' in value "${mailcreation.sender.email-address}"
如果我运行相同的应用程序，则不会收到错误消息。没有提示为什么应用程序无法正常启动。这就是我在Kubernetes中得到的：
...
2019-01-11 10:35:33.365 WARN 1 --- [ost-startStop-2] o.a.c.loader.WebappClassLoaderBase : The web application [easyprocesses] appears to have started a thread named [oracle.jdbc.driver.BlockSource.ThreadedCachingBlockSource.BlockReleaser] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Object.wait(Native Method)
oracle.jdbc.driver.BlockSource $ ThreadedCachingBlockSource $ BlockReleaser.run（BlockSource.java:327）
在两种情况下都存在一些关闭问题（不知道为什么），但是它们是相似的。
例如，如果基础数据库的密码错误，则应用程序也不会显示该错误。该应用程序停止并且不打印任何可用错误。
有人知道这种行为的原因是什么？
谢谢， 斯蒂芬