title: After Spring boot 2.2.0 upgrade cause issue to read value by placeholder
body: <pre><code>Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'myname' in value "${myname}"
      at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:178) ~[spring-core-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:124) ~[spring-core-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:236) ~[spring-core-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:210) ~[spring-core-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      at org.springframework.context.support.PropertySourcesPlaceholderConfigurer.lambda$processProperties$0(PropertySourcesPlaceholderConfigurer.java:175) ~[spring-context-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:908) ~[spring-beans-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1228) ~[spring-beans-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1207) ~[spring-beans-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:636) ~[spring-beans-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:116) ~[spring-beans-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:397) ~[spring-beans-5.2.0.RELEASE.jar:5.2.0.RELEASE]
      ... 94 common frames omitted
  
  
  @Value("${myName}")
  private String myName
  </code></pre>
  
  <p>myName is value getting readed from Vault, with old Spring boot version it was worked well, Issue started after Latest upgrade</p>
  
  <p>And Test Case fail with </p>
  
  <pre><code>java.lang.IllegalStateException: Failed to load ApplicationContext
  Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'linkDiscoverers' defined in class path resource [org/springframework/hateoas/config/HateoasConfigurati
  on.class]: Unsatisfied dependency expressed through method 'linkDiscoverers' parameter 0; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'org.s
  pringframework.plugin.core.PluginRegistry&lt;org.springframework.hateoas.client.LinkDiscoverer, org.springframework.http.MediaType&gt;' available: expected single matching bean but found 3: relProviderPluginRegistry,
  linkDiscovererRegistry,entityLinksPluginRegistry
  Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'org.springframework.plugin.core.PluginRegistry&lt;org.springframework.hateoas.client.LinkDiscoverer, org.sp
  ringframework.http.MediaType&gt;' available: expected single matching bean but found 3: relProviderPluginRegistry,linkDiscovererRegistry,entityLinksPluginRegistry
  </code></pre>