Get a list of ICompilationUnits from an Eclipse IJavaProject object

GetICompilationUnits.java

import java.util.List;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;

public class GetICompilationUnits {
   public static List<ICompilationUnit> getCompilationUnits(IJavaProject javaProject) {
      List<ICompilationUnit> units = new LinkedList<ICompilationUnit>();
      try {
         IPackageFragmentRoot[] packageFragmentRoots = javaProject.getAllPackageFragmentRoots();
         for(int i = 0; i < packageFragmentRoots.length; i++) {
            IPackageFragmentRoot packageFragmentRoot = packageFragmentRoots[i];
            IJavaElement[] fragments = packageFragmentRoot.getChildren();
            for(int j = 0; j < fragments.length; j++) {
               IPackageFragment fragment = (IPackageFragment)fragments[j];
               IJavaElement[] javaElements = fragment.getChildren();
               for(int k = 0; k < javaElements.length; k++) {
                  IJavaElement javaElement = javaElements[k];
                  if(javaElement.getElementType() == IJavaElement.COMPILATION_UNIT) {
                     units.add( (ICompilationUnit)javaElement);
                  }
               }
            }
         }
      }
      catch(Exception e) {
         e.printStackTrace();
      }
      return units;
   }
}