title: Java SWT: 22 MB of runnable.jar file. Is it possible to reduce the size?
body: <p>I'm developing an application with Java SWT and WindowBuilder.</p>
  
  <p>I'm building with Eclipse and export to runnable .jar and I did organize imports before.</p>
  
  <p>Now I'm testing to generate the runnable .jar file and I noticed that the .jar file has 22 MB of size. My classes are only a few kb and I don't use images or videos, so the 22 MB are from SWT libraries or something similar probably.</p>
  
  <p>Exists a possibility to compact the .jar runnable file forcing it to contain just the necessary and used SWT or Java libraries? For sure now it's containing the full SWT package and a lot of stuff that I'm not using.</p>