public void test_insert_noChains() {
        User user = createTestUser("testuser");
        authenticationManager.insert(user);
        // Should not throw exception even with no chains
    }

    // Test insert with single chain
    @Test
    public void test_insert_singleChain() {
        User user = createTestUser("testuser");
        TestAuthenticationChain chain = new TestAuthenticationChain();
        authenticationManager.addChain(chain);

* **Harder for non-native speakers**: Contributors and users for whom English is a second language benefit from a single, consistent convention

While both American and British English are valid, establishing a single standard improves consistency, readability, and maintainability of the codebase.

## Decision

        // In XML, a single backslash is passed directly (no Java string escaping)
        // So we use a literal backslash here to simulate XML-loaded value
        String xmlLoadedPattern = "image/svg" + "\\" + "+xml"; // Simulates XML value: image/svg\+xml

        generator.addCondition("mimetype", xmlLoadedPattern);

        // The condition map should store the pattern with a single backslash

The "build tree state" holds the state for the entire build definition for a single build execution within a session.

The build tree state is managed by the `BuildTreeState` class.
An instance is created at the start of a build execution and discarded at the end of the execution.

### Build state

The "build state" holds the state for a build within the build definition for a single build execution, and is contained by the build tree state.

        for (int i = 0; i < binaryData.length; i++) {
            assertEquals("Binary data should match at position " + i, binaryData[i], binaryDecoded[i]);
        }
    }

    /**
     * Test encode with single byte
     *
     * @throws Exception
     */
    public void testEncode_SingleByte() throws Exception {
        final byte[] singleByte = new byte[] { 'A' };

/**
 * Represents a single character mapping rule that defines how input characters are mapped to output characters
 * for text analysis and search processing. This class is used in character mapping dictionaries to transform
 * text during indexing and search operations.
 *
 * <p>Each mapping item consists of one or more input character sequences that are mapped to a single output

        String value;
        String[] result;

        // Single unquoted value
        value = "single";
        result = KuromojiCSVUtil.parse(value);
        assertEquals(1, result.length);
        assertEquals("single", result[0]);

        // Single quoted value - quotes preserved
        value = "\"single quoted\"";
        result = KuromojiCSVUtil.parse(value);

        assertNotNull(valueMethod);
        assertEquals(String[].class, valueMethod.getReturnType());
        assertEquals(0, valueMethod.getParameterCount());
    }

    // Test class with single role
    @Secured({ "ROLE_USER" })
    static class SingleRoleClass {
        public void testMethod() {
        }
    }

    // Test class with multiple roles
    @Secured({ "ROLE_USER", "ROLE_ADMIN" })

  }

  /**
   * Generates a hash code for multiple values. The hash code is generated by calling {@link
   * Arrays#hashCode(Object[])}. Note that array arguments to this method, with the exception of a
   * single Object array, do not get any special handling; their hash codes are based on identity
   * and not contents.
   *
   * <p>This is useful for implementing {@link Object#hashCode()}. For example, in an object that

   * generally guaranteed.
   */
  public static String toString(Iterable<?> iterable) {
    return Iterators.toString(iterable.iterator());
  }

  /**
   * Returns the single element contained in {@code iterable}.
   *
   * <p><b>Java 8+ users:</b> the {@code Stream} equivalent to this method is {@code
   * stream.collect(MoreCollectors.onlyElement())}.
   *