There are problems with Global Tools after upgrading Jenkins from 1.651.3 to 2.7.1:

• Global Tool Configuration page is not loading
• Tools is not available(( They not installed(
• There are warnings in logs:

  ul 26, 2016 3:12:54 PM hudson.model.DownloadService$Downloadable updateNow
  WARNING: No tool installer metadata found for hudson.tasks.Maven.MavenInstaller
  Jul 26, 2016 3:12:55 PM hudson.model.DownloadService$Downloadable updateNow
  WARNING: No tool installer metadata found for hudson.tasks.Ant.AntInstaller
  Jul 26, 2016 3:12:55 PM hudson.model.DownloadService$Downloadable updateNow
  WARNING: No tool installer metadata found for ru.yandex.qatools.allure.jenkins.tools.AllureCommandlineInstaller
  Jul 26, 2016 3:12:56 PM hudson.model.DownloadService$Downloadable updateNow
  WARNING: No tool installer metadata found for hudson.plugins.groovy.GroovyInstaller
  Jul 26, 2016 3:12:57 PM hudson.model.DownloadService$Downloadable updateNow
  WARNING: No tool installer metadata found for hudson.plugins.gradle.GradleInstaller
  Jul 26, 2016 3:12:58 PM hudson.model.DownloadService$Downloadable updateNow
  WARNING: No tool installer metadata found for hudson.plugins.sonar.SonarRunnerInstaller
  Jul 26, 2016 3:12:59 PM hudson.model.DownloadService$Downloadable updateNow
  WARNING: No tool installer metadata found for hudson.tools.JDKInstaller
  Jul 26, 2016 3:12:59 PM hudson.model.DownloadService$Downloadable updateNow
  WARNING: No tool installer metadata found for org.jenkinsci.plugins.golang.GolangInstaller
  Jul 26, 2016 3:13:00 PM hudson.model.DownloadService$Downloadable updateNow
  WARNING: No tool installer metadata found for org.jenkinsci.plugins.scriptler.CentralScriptJsonCatalog
  Jul 26, 2016 3:13:00 PM hudson.model.AsyncPeriodicWork$1 run
  INFO: Finished Download metadata. 9,227 ms
  

Reinstalling plugins didnt help