protected boolean keepImport(Map.Entry<String, String> ent) {
    return !setNotImportedNames.contains(ent.getKey()) &&
           !ent.getValue().isEmpty() &&
           !JAVA_LANG_PACKAGE.equals(ent.getValue()) &&
           !ent.getValue().equals(currentPackagePoint);
  }
Check whether to keep the given entry in the import list.

@param ent the entry in the map containing the class name and its corresponding package name
@return true if the entry should be kept for importing, false otherwise
src/org/jetbrains/java/decompiler/main/collectors/ImportCollector.java