title: Maven not downloading jars for dependencies
body: <p>I am trying to set up Maven on my Windows machine. I tried both 3.2.3 and 3.1.1. I installed the m2eclipse plugin in my eclipse.</p>
  
  <p>I places the following dependencies in my pom.xml  (just as a sample)</p>
  
  <pre><code>&lt;dependencies&gt;
      &lt;dependency&gt;
        &lt;groupId&gt;org.springframework.boot&lt;/groupId&gt;
          &lt;artifactId&gt;spring-boot-tools&lt;/artifactId&gt;
          &lt;version&gt;1.1.7.RELEASE&lt;/version&gt;
      &lt;/dependency&gt;
  &lt;/dependencies&gt;
  </code></pre>
  
  <p>Eclipse gives the error: <code>Missing artifact org.springframework.boot:spring-boot-tools:jar:1.1.7.RELEASE</code></p>
  
  <p>In my .m2 repository I have the .pom file, the .jar.lastUpdated file but no actual .jar file</p>
  
  <p>When I execute <code>mvn -X clean install</code> I have the following stack trace</p>
  
  <pre><code>[ERROR] Failed to execute goal on project SpringTest_Boot: Could not resolve dependencies for project SpringTest_Boot:SpringTest_Boot:jar:0.0.1-SNAPSHOT: Failure to find org.springframework.boot:sprin
  g-boot-tools:jar:1.1.7.RELEASE in http://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 -&gt; [Help 1]
  org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal on project SpringTest_Boot: Could not resolve dependencies for project SpringTest_Boot:SpringTest_Boot:jar:0.0.1-SNAPSHOT
  : Failure to find org.springframework.boot:spring-boot-tools:jar:1.1.7.RELEASE in http://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the u
  pdate interval of central has elapsed or updates are forced
          at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:220)
          at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDependencies(LifecycleDependencyResolver.java:127)
          at org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved(MojoExecutor.java:257)
          at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:200)
          at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
          at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
          at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
          at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
          at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
          at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
          at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:317)
          at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152)
          at org.apache.maven.cli.MavenCli.execute(MavenCli.java:555)
          at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214)
          at org.apache.maven.cli.MavenCli.main(MavenCli.java:158)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          at java.lang.reflect.Method.invoke(Method.java:483)
          at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
          at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
          at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
          at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
  Caused by: org.apache.maven.project.DependencyResolutionException: Could not resolve dependencies for project SpringTest_Boot:SpringTest_Boot:jar:0.0.1-SNAPSHOT: Failure to find org.springframework.bo
  ot:spring-boot-tools:jar:1.1.7.RELEASE in http://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
          at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:198)
          at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:195)
          ... 22 more
  Caused by: org.eclipse.aether.resolution.DependencyResolutionException: Failure to find org.springframework.boot:spring-boot-tools:jar:1.1.7.RELEASE in http://repo.maven.apache.org/maven2 was cached i
  n the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced
          at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:384)
          at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:192)
          ... 23 more
  Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Failure to find org.springframework.boot:spring-boot-tools:jar:1.1.7.RELEASE in http://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
          at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:459)
          at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:262)
          at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:367)
          ... 24 more
  Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Failure to find org.springframework.boot:spring-boot-tools:jar:1.1.7.RELEASE in http://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
          at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:232)
          at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:206)
          at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:599)
          at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:518)
          at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:436)
          ... 26 more
  [ERROR]
  [ERROR]
  [ERROR] For more information about the errors and possible solutions, please read the following articles:
  [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
  O:\Clouds\Dropbox\Repositories\git\Spring Comparison Test\Boot&gt;mvn -X clean install
  </code></pre>