<extension point="org.eclipse.ui.ide.markerResolution">
    <markerResolutionGenerator
        markerType="org.eclipse.core.resources.problemmarker"
        class="org.eclipse.escript.quickfix.QuickFixer"/>
</extension>

Then i have created the two classes QuickFixer and QuickFix.

package quickfixer;

import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.ui.IMarkerResolution;
import org.eclipse.ui.IMarkerResolutionGenerator;

class QuickFixer implements IMarkerResolutionGenerator {

    public IMarkerResolution[] getResolutions(IMarker arg0) {
    try {
            Object problem = arg0.getAttribute("Whatsup");
            return new IMarkerResolution[] {
            new QuickFix("Fix #1 for "+problem),
            new QuickFix("Fix #2 for "+problem),
            };
        } catch(CoreException e) {
            return new IMarkerResolution[0];
        }
    }
}

then the class QuickFix:

package quickfixer;

import org.eclipse.core.resources.IMarker;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ui.IMarkerResolution;

public class QuickFix implements IMarkerResolution {

       String label;
       QuickFix(String label) {
          this.label = label;
       }
       public String getLabel() {
          return label;
       }

    public void run(IMarker arg0) {
        MessageDialog.openInformation(null, "QuickFix Demo",
                     "This quick-fix is not yet implemented");
        System.out.println("Label: " + label);              
    }
}