title: java.lang.NoClassDefFoundError: org/springframework/util/unit/DataSize while running spring boot project
body: <p>After chaning the spring-boot version to 2.0.1.RELEASE Getting this error while running spring boot project. I just change version from 2.0.3.RELEASE</p>
  
  <pre><code>    &lt;dependency&gt;
          &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
          &lt;artifactId&gt;spring-boot-starter-web&lt;/artifactId&gt;
          &lt;version&gt;2.1.0.RELEASE&lt;/version&gt;
      &lt;/dependency&gt;
  
  [DEV: 2018-Dec-03 17:35:10,523][ERROR][main      ]Application run failed
  java.lang.NoClassDefFoundError: org/springframework/util/unit/DataSize
  at org.springframework.boot.convert.StringToDataSizeConverter.getConvertibleTypes(StringToDataSizeConverter.java:40)
  at org.springframework.core.convert.support.GenericConversionService$Converters.add(GenericConversionService.java:507)
  at org.springframework.core.convert.support.GenericConversionService.addConverter(GenericConversionService.java:105)
  at org.springframework.boot.convert.ApplicationConversionService.addApplicationConverters(ApplicationConversionService.java:107)
  at org.springframework.boot.convert.ApplicationConversionService.configure(ApplicationConversionService.java:91)
  at org.springframework.boot.convert.ApplicationConversionService.&lt;init&gt;(ApplicationConversionService.java:52)
  at org.springframework.boot.convert.ApplicationConversionService.&lt;init&gt;(ApplicationConversionService.java:45)
  at org.springframework.boot.convert.ApplicationConversionService.getSharedInstance(ApplicationConversionService.java:71)
  at org.springframework.boot.SpringApplication.configureEnvironment(SpringApplication.java:486)
  at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:346)
  at org.springframework.boot.SpringApplication.run(SpringApplication.java:306)
  at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
  at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
  at org.onap.universalvesadapter.Application.main(Application.java:29)
  Caused by: java.lang.ClassNotFoundException: org.springframework.util.unit.DataSize
  at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:357) 
  </code></pre>