How to use

getDefaultUseWebAppLibraries

method

in

org.eclipse.jst.j2ee.internal.common.classpath.J2EEComponentClasspathContainerUtils

private void removeOldWebContainerIfNecessary(IProject webProj) {
  IJavaProject jproj = JemProjectUtilities.getJavaProject(webProj);
  final IClasspathEntry[] current;
  try {
    current = jproj.getRawClasspath();
    List updatedList = new ArrayList();
    boolean useDefaultWebAppLibraries = J2EEComponentClasspathContainerUtils.getDefaultUseWebAppLibraries();
    for (int i = 0; i < current.length; i++) {
      IClasspathEntry entry = current[i];
      // the web container is added to the classpath if:
      // 1. they don't have an entry for WEB_LIB_CONTAINER AND
      // 2. they have an entry for WEB_LIB_PATH BUT
      // they do not have the preference checked to use the Web App classpath container
      if ((entry.getPath().toString().indexOf(WEB_LIB_CONTAINER) == -1) && 
          ((entry.getPath().toString().indexOf(WEB_LIB_PATH) == -1) || !useDefaultWebAppLibraries))
        updatedList.add(entry);
    }
    IClasspathEntry[] updated = (IClasspathEntry[])updatedList.toArray(new IClasspathEntry[updatedList.size()]);
    jproj.setRawClasspath(updated, null);
    jproj.save(null, true);
  } catch (JavaModelException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
  }
  
}