private void setClasspath(IProject project, IFeatureModel model, IProgressMonitor monitor)
      throws JavaModelException {
    IJavaProject jProject = JavaCore.create(project);

    IClasspathEntry jreCPEntry =
        JavaCore.newContainerEntry(
            new Path("org.eclipse.jdt.launching.JRE_CONTAINER")); // $NON-NLS-1$

    String libName = model.getFeature().getInstallHandler().getLibrary();
    IClasspathEntry handlerCPEntry =
        JavaCore.newLibraryEntry(project.getFullPath().append(libName), null, null);

    jProject.setRawClasspath(new IClasspathEntry[] {jreCPEntry, handlerCPEntry}, monitor);
  }
  private void addProjectSourceContainers(IProject project, ArrayList result) throws CoreException {
    if (project == null || !project.hasNature(JavaCore.NATURE_ID)) return;

    IJavaProject jProject = JavaCore.create(project);
    result.add(JavaRuntime.newProjectRuntimeClasspathEntry(jProject));

    IClasspathEntry[] entries = jProject.getRawClasspath();
    for (int i = 0; i < entries.length; i++) {
      IClasspathEntry entry = entries[i];
      if (entry.getEntryKind() == IClasspathEntry.CPE_LIBRARY) {
        IRuntimeClasspathEntry rte = convertClasspathEntry(entry);
        if (rte != null) result.add(rte);
      }
    }
  }