* @param location identification of a path in the {@code javax.tool} API
     * @return Java path type associated to the given location
     */
    public static Optional<JavaPathType> valueOf(JavaFileManager.Location location) {
        for (JavaPathType type : JavaPathType.values()) {
            if (location.equals(type.location)) {
                return Optional.of(type);
            }
        }
        return Optional.empty();

     */
    @Test
    public void testEqualsHashCode() {
        JavaPathType.Modular foo1 = JavaPathType.patchModule("foo");
        JavaPathType.Modular foo2 = JavaPathType.patchModule("foo");
        JavaPathType.Modular bar = JavaPathType.patchModule("bar");
        assertEquals(foo1, foo2);
        assertEquals(foo1.hashCode(), foo2.hashCode());
        assertNotEquals(foo1, bar);

     * For example, if a Java tools accepts only class-path elements, then the filter should return
     * {@code true} for {@link JavaPathType#CLASSES} and {@code false} for {@link JavaPathType#MODULES}.
     * If no filter is explicitly set, then the default is a filter accepting everything.
     *
     * @return a filter for the types of path (class-path, module-path, …) accepted by the tool