title: spring boot : error when add spring-boot-starter-data-jpa dependency
body: <p>When I add the simple spring-boot-starter-data-jpa dependency in my pom.xml, i got an error in the pom.xml file.  If I remove that dependency there is no more errors. I am no sure why it is happening, because i am trying to execute a simple jpa example. I haven't had problems if i add others starters dependencies, I only have problems with that specific starter. </p>
  
  <p>I am using Spring STS 3.7.0 to develop my tests.<br>
  I use jdk 8.0.0.60</p>
  
  <p>Thank for your help. </p>
  
  <p>my pom.xml (I removed the links in the header because i dont have enought reputatios to post ilimited links)</p>
  
  <pre><code> &lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;project xmlns="(MAVEN LINK)" xmlns:xsi="(W3 LINK)"
      xsi:schemaLocation="LINK"&gt;
      &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
  
      &lt;groupId&gt;org.test&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;1.2.6.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;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-test&lt;/artifactId&gt;
              &lt;scope&gt;test&lt;/scope&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>Exception</p>
  
  <pre><code>org.eclipse.aether.transfer.ArtifactTransferException: Failure to transfer org.hibernate:hibernate-core:jar:4.3.11.Final from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.hibernate:hibernate-core:jar:4.3.11.Final from/to central (https://repo.maven.apache.org/maven2): The operation was cancelled.
      at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:238)
      at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:206)
      at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:585)
      at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:503)
      at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
      at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)
      at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:367)
      at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:205)
      at org.apache.maven.project.DefaultProjectBuilder.resolveDependencies(DefaultProjectBuilder.java:215)
      at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:188)
      at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:119)
      at org.eclipse.m2e.core.internal.embedder.MavenImpl.readMavenProject(MavenImpl.java:636)
      at org.eclipse.m2e.core.internal.project.registry.DefaultMavenDependencyResolver.resolveProjectDependencies(DefaultMavenDependencyResolver.java:63)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refreshPhase2(ProjectRegistryManager.java:529)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager$3.call(ProjectRegistryManager.java:491)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager$3.call(ProjectRegistryManager.java:1)
      at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
      at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:495)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:350)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:297)
      at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.getProjectFacade(MavenBuilder.java:154)
      at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1.call(MavenBuilder.java:89)
      at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
      at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
      at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
      at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.execute(MavenBuilder.java:86)
      at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:200)
      at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:734)
      at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
      at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:205)
      at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:245)
      at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:300)
      at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
      at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:303)
      at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:359)
      at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:382)
      at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:144)
      at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:235)
      at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
  
  
  
      Failure to transfer org.hibernate:hibernate-core:jar:4.3.11.Final from  was cached in the local repository, resolution will not be reattempted until the update interval of spring-ext has elapsed or updates are forced. Original error: Could not transfer artifact org.hibernate:hibernate-core:jar:4.3.11.Final from/to spring-ext : The operation was cancelled.
  
  org.eclipse.aether.transfer.ArtifactTransferException: Failure to transfer org.hibernate:hibernate-core:jar:4.3.11.Final from (URL SPRING EDITED) was cached in the local repository, resolution will not be reattempted until the update interval of spring-ext has elapsed or updates are forced. Original error: Could not transfer artifact org.hibernate:hibernate-core:jar:4.3.11.Final from/to spring-ext (URL SPRING EDITED): The operation was cancelled.
      at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:238)
      at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:206)
      at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:585)
      at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:503)
      at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
      at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:246)
      at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:367)
      at org.apache.maven.project.DefaultProjectDependencies[![enter image description here][1]][1]Resolver.resolve(DefaultProjectDependenciesResolver.java:205)
      at org.apache.maven.project.DefaultProjectBuilder.resolveDependencies(DefaultProjectBuilder.java:215)
      at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:188)
      at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:119)
      at org.eclipse.m2e.core.internal.embedder.MavenImpl.readMavenProject(MavenImpl.java:636)
      at org.eclipse.m2e.core.internal.project.registry.DefaultMavenDependencyResolver.resolveProjectDependencies(DefaultMavenDependencyResolver.java:63)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refreshPhase2(ProjectRegistryManager.java:529)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager$3.call(ProjectRegistryManager.java:491)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager$3.call(ProjectRegistryManager.java:1)
      at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
      at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:495)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:350)
      at org.eclipse.m2e.core.internal.project.registry.ProjectRegistryManager.refresh(ProjectRegistryManager.java:297)
      at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.getProjectFacade(MavenBuilder.java:154)
      at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1.call(MavenBuilder.java:89)
      at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:176)
      at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
      at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
      at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.execute(MavenBuilder.java:86)
      at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:200)
      at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:734)
      at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
      at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:205)
      at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:245)
      at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:300)
      at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
      at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:303)
      at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:359)
      at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:382)
      at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:144)
      at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:235)
      at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
  </code></pre>