title: issue with spring boot while upgrading to 1.3.0.RELEASE
body: <p>Hi i just upgraded to spring boot 1.3.0.RELEASE and while running the same again get this strange error </p>
  
  <pre><code>14:43:52.503 [main] INFO  c.test.whf.service.HfServices - Starting up....
  Exception in thread "main" java.lang.IllegalAccessError: tried to access method org.springframework.core.convert.support.DefaultConversionService.addCollectionConverters(Lorg/springframework/core/convert/converter/ConverterRegistry;)V from class org.springframework.boot.bind.RelaxedConversionService
      at org.springframework.boot.bind.RelaxedConversionService.&lt;init&gt;(RelaxedConversionService.java:52)
      at org.springframework.boot.bind.RelaxedDataBinder.modifyProperties(RelaxedDataBinder.java:148)
      at org.springframework.boot.bind.RelaxedDataBinder.doBind(RelaxedDataBinder.java:128)
      at org.springframework.validation.DataBinder.bind(DataBinder.java:715)
      at org.springframework.boot.bind.PropertiesConfigurationFactory.doBindPropertiesToTarget(PropertiesConfigurationFactory.java:267)
      at org.springframework.boot.bind.PropertiesConfigurationFactory.bindPropertiesToTarget(PropertiesConfigurationFactory.java:240)
      at org.springframework.boot.context.config.ConfigFileApplicationListener.bindToSpringApplication(ConfigFileApplicationListener.java:220)
      at org.springframework.boot.context.config.ConfigFileApplicationListener.postProcessEnvironment(ConfigFileApplicationListener.java:171)
      at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEnvironmentPreparedEvent(ConfigFileApplicationListener.java:161)
      at org.springframework.boot.context.config.ConfigFileApplicationListener.onApplicationEvent(ConfigFileApplicationListener.java:146)
      at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:163)
      at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:136)
      at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:119)
      at org.springframework.boot.context.event.EventPublishingRunListener.publishEvent(EventPublishingRunListener.java:111)
      at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:65)
      at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
      at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:315)
      at org.springframework.boot.SpringApplication.run(SpringApplication.java:295)
      at org.springframework.boot.SpringApplication.run(SpringApplication.java:1112)
      at org.springframework.boot.SpringApplication.run(SpringApplication.java:1101)
      at com.wellmanage.whf.service.HfServices.main(HfServices.java:97)
  </code></pre>
  
  <p>also there have been no other changes to my code not sure what is causing this really .</p>
  
  <p>app class is as simple as below</p>
  
  <pre><code>  SpringApplication.run(HfServices.class, args);
  </code></pre>
  
  <p>Please help ...</p>