title: How to upgrade only two eclipse plugin
body: <p>Eclipse has its own built-in Java compiler. Because my eclipse is old, there are some bugs in the compiler, which blocks my works currently. </p>
  
  <p>At the beginning, I tried use Help>Check for updates. This fails and upgrade does not continue because of some plugin is installed locally and the failure of checking these local directory results in exit of whole upgrade. </p>
  
  <p><code>No repository found at file:/c:/J9%20Development%20Tools/j9dt-update-site/.</code></p>
  
  <p>Therefore, is it possible to update only two or three plugins in Eclipse? </p>