title: getting "Whitelabel Error Page" running actuator health and mappings urls
body: <p>I am starting with spring boot, running a demo spring web starter project, I was checking the spring actuator functionality by calling <a href="http://localhost:8080/mappings" rel="noreferrer">http://localhost:8080/mappings</a> and <a href="http://localhost:8080/health" rel="noreferrer">http://localhost:8080/health</a>  ... It's giving me the "Whitelabel Error Page" ... the log is not showing anything </p>
  
  <p><a href="https://i.stack.imgur.com/YSFUD.png" rel="noreferrer"><img src="https://i.stack.imgur.com/YSFUD.png" alt="enter image description here"></a></p>
  
  <p>the project is a very simple boot application created in STS with one <code>@RestController</code> which is working fine</p>
  
  <p><strong>Main class :</strong></p>
  
  <pre><code>@SpringBootApplication
  public class DemoApplication {
  
      public static HashMap&lt;Long,Student&gt; hmStudent;
  
      public static void main(String[] args) {
          //dummt code
            SpringApplication.run(DemoApplication.class, args);
      }
  }
  </code></pre>
  
  <p><strong>Rest Controller :</strong></p>
  
  <pre><code>import java.util.HashMap;
  
  import org.springframework.web.bind.annotation.PathVariable;
  import org.springframework.web.bind.annotation.RequestBody;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RequestMethod;
  import org.springframework.web.bind.annotation.RequestParam;
  import org.springframework.web.bind.annotation.RestController;
  
  import com.example.demo.DemoApplication;
  import com.example.demo.entities.Student;
  
  @RestController
  @RequestMapping(value="/rest/student")
  class StudentService{
  
     @RequestMapping(value="/",method = RequestMethod.GET)
     public HashMap&lt;Long,Student&gt; getAllStudents(){
        return DemoApplication.hmStudent;
     }
  .
  .
  .
  .
  }
  </code></pre>
  
  <p><strong>application properties :</strong> </p>
  
  <pre><code>spring.datasource.url=jdbc:oracle:thin:@localhost:ibmwas
  spring.datasource.username=u
  spring.datasource.password=p
  spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver
  </code></pre>
  
  <p><strong>pom.xml</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"&gt;
      &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
  
      &lt;groupId&gt;com.example&lt;/groupId&gt;
      &lt;artifactId&gt;demo&lt;/artifactId&gt;
      &lt;version&gt;0.0.1-SNAPSHOT&lt;/version&gt;
      &lt;packaging&gt;jar&lt;/packaging&gt;
  
      &lt;name&gt;demo&lt;/name&gt;
      &lt;description&gt;Demo project for Spring Boot&lt;/description&gt;
  
      &lt;parent&gt;
          &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
          &lt;artifactId&gt;spring-boot-starter-parent&lt;/artifactId&gt;
          &lt;version&gt;2.0.0.RELEASE&lt;/version&gt;
          &lt;relativePath /&gt; &lt;!-- lookup parent from repository --&gt;
      &lt;/parent&gt;
  
      &lt;properties&gt;
          &lt;project.build.sourceEncoding&gt;UTF-8&lt;/project.build.sourceEncoding&gt;
          &lt;project.reporting.outputEncoding&gt;UTF-8&lt;/project.reporting.outputEncoding&gt;
          &lt;java.version&gt;1.8&lt;/java.version&gt;
      &lt;/properties&gt;
  
      &lt;dependencies&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
              &lt;artifactId&gt;spring-boot-starter-data-jpa&lt;/artifactId&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
              &lt;artifactId&gt;spring-boot-starter-data-rest&lt;/artifactId&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
              &lt;artifactId&gt;spring-boot-starter-jta-atomikos&lt;/artifactId&gt;
          &lt;/dependency&gt;
  
          &lt;dependency&gt;
              &lt;groupId&gt;mysql&lt;/groupId&gt;
              &lt;artifactId&gt;mysql-connector-java&lt;/artifactId&gt;
              &lt;scope&gt;runtime&lt;/scope&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
              &lt;artifactId&gt;spring-boot-starter-test&lt;/artifactId&gt;
              &lt;scope&gt;test&lt;/scope&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
              &lt;artifactId&gt;spring-boot-devtools&lt;/artifactId&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;com.oracle&lt;/groupId&gt;
              &lt;artifactId&gt;ojdbc8&lt;/artifactId&gt;
              &lt;version&gt;12.0.2&lt;/version&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
              &lt;artifactId&gt;spring-boot-actuator&lt;/artifactId&gt;
              &lt;version&gt;2.0.0.RELEASE&lt;/version&gt;
          &lt;/dependency&gt;
      &lt;/dependencies&gt;
  
      &lt;build&gt;
          &lt;plugins&gt;
              &lt;plugin&gt;
                  &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
                  &lt;artifactId&gt;spring-boot-maven-plugin&lt;/artifactId&gt;
              &lt;/plugin&gt;
          &lt;/plugins&gt;
      &lt;/build&gt;
  &lt;/project&gt;
  </code></pre>
  
  <p>What is the problem and how can I the logs be more descriptive</p>