title: Maven error: Unable to get resource / Server redirected too many times
body: <p>Our proxy went down and I tried to update dependencies with Maven while it was off.
  Since then I can't download anything with Maven.
  I get this error for everything.
  I tried -U option, deleting my local repository and tried different Maven version (2.0.9, 2.2.1) but it doesn't work.
  Any idea how to solve this?</p>
  
  <p>Earlier it also said 'repository will be blacklisted' to all of them.</p>
  
  <pre>
  Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-compiler-plugin/2.1/maven-compiler-plugin-2.1.pom<br>
  [WARNING] Unable to get resource 'org.apache.maven.plugins:maven-compiler-plugin:pom:2.1'<br> from repository central (http://repo1.maven.org/maven2): <br>Error transferring file: Server redirected too many  times (20)
    org.apache.maven.plugins:maven-compiler-plugin:pom:2.1
  
  from the specified remote repositories:
    jboss-snapshot (http://snapshots.jboss.org/maven2),
    central (http://repo1.maven.org/maven2),
    JBoss Repo (http://repository.jboss.com/maven2),
    spring-maven-snapshot (http://maven.springframework.org/snapshot),
    com.springsource.repository.bundles.external (http://repository.springsource.com/maven/bundles/external),
    com.springsource.repository.bundles.snapshot (http://repository.springsource.com/maven/bundles/snapshot),
    jboss (http://repository.jboss.com/maven2),
    com.springsource.repository.bundles.release (http://repository.springsource.com/maven/bundles/release),
    jboss-snapshot-plugins (http://snapshots.jboss.org/maven2),
    com.springsource.repository.bundles.milestone (http://repository.springsource.com/maven/bundles/milestone),
    jboss-plugins (http://repository.jboss.com/maven2)
  
  
          at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:228)
          at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:90)
          at org.apache.maven.project.DefaultMavenProjectBuilder.findModelFromRepository(DefaultMavenProjectBuilder.java:558)
          ... 25 more
  Caused by: org.apache.maven.wagon.ResourceDoesNotExistException: Unable to download the artifact from any repository
          at org.apache.maven.artifact.manager.DefaultWagonManager.getArtifact(DefaultWagonManager.java:404)
          at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:216)
          ... 27 more</pre>