title: javac not recognizing external libraries
body: <p>I have a working version of my project in eclipse.</p>
  
  <p>I exported the project as a runnable jar.
  Extracted (after converting to .zip)and tried to compile a particular java file from the command prompt
  (Doing it this way since I have a project requirement, where input parameter inside that particular file can be modified and recompiled/run by users who wont have Eclipse)</p>
  
  <p>I have used some external libraries( for Eg:json-simple,gson etc).They arent getting recognized , during compilation.
  But if I run the class file(from the Eclipse compiled version), it gets executed properly</p>
  
  <p>a)Tried to compile from root folder(using package name)
  javac packageName.javaFileName.java
  b) and went inside the package and compiled directly.
  javac javaFileName.java</p>
  
  <p>The a)part didnt compile at all saying classNotFound. The b)part started compiling but threw an error where none of the external libraries got recognized.(Getting --> error: cannot find symbol for places wherever the code/import of the external lib is used)</p>