/**
   * Returns an {@link Escaper} instance that escapes strings so they can be safely included in a <a
   * href="https://url.spec.whatwg.org/#concept-url-fragment">URL fragment</a>. The returned escaper
   * escapes all non-ASCII characters.
   *
   * <p>When escaping a String, the following rules apply:
   *
   * <ul>

* `fixedquery` : a pour valeur exacte `fixedquery`.
* `$` : se termine directement ensuite, n'a pas d'autres caractères après `fixedquery`.

Si vous vous sentez perdu avec le concept d'**expression régulière**, pas d'inquiétudes. Il s'agit d'une notion difficile pour beaucoup, et l'on peut déjà réussir à faire beaucoup sans jamais avoir à les manipuler.

**Priority: MEDIUM** | **Estimated Effort: 2-3 weeks**

Directory leasing extends the lease concept to directories for improved metadata caching.

#### 4.1 Core Directory Lease Infrastructure
```
Package: jcifs.internal.smb2.lease
├── DirectoryLeaseContext.java    - Directory-specific lease context
├── DirectoryLeaseCache.java      - Directory metadata cache
└── DirectoryChangeNotifier.java  - Directory change tracking

  <artifactId>maven</artifactId>
  <version>3.0-SNAPSHOT</version>
  <packaging>pom</packaging>
  <name>Apache Maven</name>
  <description>Maven is a project development management and
    comprehension tool. Based on the concept of a project object model:
    builds, dependency management, documentation creation, site
    publication, and distribution publication are all controlled from
    the declarative file. Maven can be extended by plugins to utilise a

@Test
public void testDirectoryChangeNotification() throws Exception {
    CIFSContext context = getTestContext();
    context.getConfig().setProperty("jcifs.smb.client.directoryNotificationsEnabled", "true");
    
    SmbFile dir = new SmbFile("smb://server/share/testdir/", context);
    SmbFile testFile = new SmbFile("smb://server/share/testdir/newfile.txt", context);
    
    // Get initial listing (establishes cache)

  <artifactId>maven</artifactId>
  <version>3.0-SNAPSHOT</version>
  <packaging>pom</packaging>
  <name>Apache Maven</name>
  <description>Maven is a project development management and
    comprehension tool. Based on the concept of a project object model:
    builds, dependency management, documentation creation, site
    publication, and distribution publication are all controlled from
    the declarative file. Maven can be extended by plugins to utilise a

   *
   * <p>The returned set and its constituent sets use {@code equals} to decide whether two elements
   * are identical, even if the input set uses a different concept of equivalence.
   *
   * <p><i>Performance notes:</i> while the power set of a set with size {@code n} is of size {@code
   * 2^n}, its memory usage is only {@code O(n)}. When the power set is constructed, the input set

Go 1.20 introduced automatic seeding of the
[`math/rand`](/pkg/math/rand) global random number generator,
controlled by the [`randautoseed` setting](/pkg/math/rand/#Seed).

Go 1.20 introduced the concept of fallback roots for use during certificate verification,
controlled by the [`x509usefallbackroots` setting](/pkg/crypto/x509/#SetFallbackRoots).

Go 1.20 removed the preinstalled `.a` files for the standard library

import java.util.Map.Entry;
import org.jspecify.annotations.Nullable;

/**
 * Represents an <a href="http://en.wikipedia.org/wiki/Internet_media_type">Internet Media Type</a>
 * (also known as a MIME Type or Content Type). This class also supports the concept of media ranges
 * <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1">defined by HTTP/1.1</a>.

				"application/dita+xml;format=topic",
				"application/dita+xml;format=task",
				"application/dita+xml;format=concept",
				"application/dita+xml;format=val",
				"application/dns",
				"application/dvcs",
				"application/ecmascript",
				"application/edi-consent",
				"application/edi-x12",
				"application/edifact",
				"application/emma+xml",
				"application/epp+xml",