Method importPackage

java/jakarta/el/ImportHandler.java:403–411

Imports all classes from a package so they can be referenced by their simple names in EL expressions. Classes from the imported package are resolved during expression evaluation. If a simple name is ambiguous across multiple imported packages, an ELException is thrown at resolution time. @p

(String name)

     * @param name the package name to import
     */
    public void importPackage(String name) {
        // Import ambiguity is handled at resolution, not at import
        // Whether the package exists is not checked,
        // a) for sake of performance when used in JSPs (BZ 57142),
        // b) java.lang.Package.getPackage(name) is not reliable (BZ 57574),
        // c) such check is not required by specification.
        Set<String> preloaded = standardPackages.get(name);
        packageNames.put(name, Objects.requireNonNullElse(preloaded, Collections.emptySet()));
    }


    /**