title: Java: The import org.apache.commons.lang cannot be resolved [Eclipse]
body: <p>I've been handed a java project for modification, so I went ahead and decided to set it up in my MacBook. I loaded the project into Eclipse (Luna), imported and added all the external jars necessary, and pretty much tried to copy the old setup.</p>
  
  <p>Then, I get this:<br>
  <img src="https://i.stack.imgur.com/UptlO.png" alt="Marco"></p>
  
  <p>Which is weird, because I could've sworn I added that as a JAR (same one from the old setup):
  <img src="https://i.stack.imgur.com/D0KUI.png" alt="Polo">
  Oh, wait. There it is.</p>
  
  <p>Now, according to <a href="https://stackoverflow.com/questions/19381095/package-org-apache-commons-lang-does-not-exist-netbeans">this, which may or may not apply, as it is NetBeans</a> (not sure if there's much of a difference), I should use <code>org.apache.commons.lang3.StringEscapeUtils;</code></p>
  
  <p>Which, however, gives me this:</p>
  
  <p><img src="https://i.stack.imgur.com/3lka9.png" alt="enter image description here"></p>
  
  <p>EDIT: Here's the part of the code that uses the StringEscapeUtils:
  <img src="https://i.stack.imgur.com/IRpr5.png" alt="enter image description here"></p>
  
  <p>Sorry if this seems trivial, but I'm kinda stumped. Can anyone help? Thanks.</p>
  
  <p>EDIT: It would appear that in trying to solve this problem, I ran into a different one. After changing the <code>org.apache.commons.lang.StringEscapeUtils;</code> into <code>org.apache.commons.lang3.StringEscapeUtils;</code>, I noticed the error also says <code>Unable to load realm info from SCDynamic store</code>.</p>
  
  <p>At this point, I'm not sure if I did solve the previous error, or not, as I probably need to fix this new error to proceed.</p>