// Verify the name is set
        assertEquals("Test Crawl Job", options.name);
    }

    // Test error handling in doCrawl
    public void test_doCrawl_withErrors() {
        // Clear any previous errors
        try {
            Field errorsField = Crawler.class.getDeclaredField("errors");
            errorsField.setAccessible(true);
            Queue<String> errors = (Queue<String>) errorsField.get(null);

                    deleteOldDocs();
                }
            }
        }

        /**
         * Deletes old documents from the search index.
         * This method removes documents that were indexed in previous
         * crawling sessions for the same data configuration, keeping
         * only the documents from the current session.
         *
         * <p>The deletion process:</p>
         * <ul>

This code is something you can actually use in your application, save the password hashes in your database, etc.

We are going to start from where we left in the previous chapter and increment it.

## About JWT { #about-jwt }

JWT means "JSON Web Tokens".

It's a standard to codify a JSON object in a long dense string without spaces. It looks like this:

```

    newRoutePlanner: Boolean,
    chain: RealInterceptorChain,
  ) {
    check(interceptorScopedExchange == null)

    withLock {
      check(!responseBodyOpen) {
        "cannot make a new request because the previous response is still open: " +
          "please call response.close()"
      }
      check(!requestBodyOpen)
    }

    if (newRoutePlanner) {
      val routePlanner =
        RealRoutePlanner(

   *
   * @param rowIndex position of the row key in {@link #rowKeyList()}
   * @param columnIndex position of the row key in {@link #columnKeyList()}
   * @param value value to store in the table
   * @return the previous value with the specified row and column
   * @throws IndexOutOfBoundsException if either index is negative, {@code rowIndex} is greater than

     */
    public interface CircuitBreakerListener {
        /**
         * Called when circuit state changes
         *
         * @param circuitBreaker the circuit breaker
         * @param fromState previous state
         * @param toState new state
         */
        void onStateChange(SmbCircuitBreaker circuitBreaker, State fromState, State toState);

        /**
         * Called when a request succeeds

This could be especially useful during testing, as it's very easy to override a dependency with your own custom settings.

### The config file { #the-config-file }

Coming from the previous example, your `config.py` file could look like:

{* ../../docs_src/settings/app02/config.py hl[10] *}

Notice that now we don't create a default instance `settings = Settings()`.

        assertNotEquals(l1, l5);

        // Force address resolution failure -> fallback to server name compare
        // Use a fresh context to avoid affecting previous tests
        CIFSContext ctx2 = mock(CIFSContext.class);
        Configuration config2 = mock(Configuration.class);
        Credentials creds2 = mock(Credentials.class);

                if (name != null) {
                    ListIterator<XmlNode> it = children.listIterator(children.size());
                    while (it.hasPrevious()) {
                        XmlNode child = it.previous();
                        if (name.equals(child.name())) {
                            return child;
                        }
                    }
                }
                return null;

// Endpoint set represents parsed ellipses values, also provides
// methods to get the sets of endpoints.
type endpointSet struct {
	argPatterns []ellipses.ArgPattern
	endpoints   []string   // Endpoints saved from previous GetEndpoints().
	setIndexes  [][]uint64 // All the sets.
}

// Supported set sizes this is used to find the optimal
// single set size.
var setSizes = []uint64{2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}