private TestIngestFactory ingestFactory;
    private FessConfig.SimpleImpl fessConfig;

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);

        // Clear cached components in ComponentUtil using reflection
        try {
            java.lang.reflect.Field systemHelperField = ComponentUtil.class.getDeclaredField("systemHelper");
            systemHelperField.setAccessible(true);

   * its cell view, as returned by {@link #cellSet}.
   */
  @Override
  int hashCode();

  // Mutators

  /** Removes all mappings from the table. */
  void clear();

  /**
   * Associates the specified value with the specified keys. If the table already contained a
   * mapping for those keys, the old value is replaced with the specified value.
   *

   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public final void clear() {
    throw new UnsupportedOperationException();
  }

  /**
   * Guaranteed to throw an exception and leave the {@code RangeMap} unmodified.
   *
   * @throws UnsupportedOperationException always

   * instance, so it can be invoked again to create multiple independent maps.
   *
   * <p>The bulk operations {@code putAll}, {@code equals}, and {@code clear} are not guaranteed to
   * be performed atomically on the returned map. Additionally, {@code size} and {@code
   * containsValue} are implemented as bulk read operations, and thus may fail to observe concurrent
   * writes.

- Regenerate Java classes: `mvn dbflute:freegen`
- Rebuild project: `mvn clean package`
- Restart Fess application

### Translations not showing

- Clear browser cache
- Force language with `?browser_lang=[locale]` parameter
- Check property file encoding (should be UTF-8 or use Unicode escapes `\uXXXX`)
- Verify property keys match exactly with base English files

            assertTrue(echoResponse.isReceived());
            assertEquals(testException, echoResponse.getException());
        }

        @Test
        @DisplayName("Should clear received state")
        void testClearReceived() {
            echoResponse.received();
            assertTrue(echoResponse.isReceived());

            echoResponse.clearReceived();

            return parent.removeAll(c);
        }

        public boolean retainAll(final Collection<?> c) {
            return parent.retainAll(c);
        }

        public void clear() {
            parent.clear();
        }

        public boolean equals(final Object o) {
            return parent.equals(o);
        }

        public int hashCode() {
            return parent.hashCode();

   * instance, so it can be invoked again to create multiple independent maps.
   *
   * <p>The bulk operations {@code putAll}, {@code equals}, and {@code clear} are not guaranteed to
   * be performed atomically on the returned map. Additionally, {@code size} and {@code
   * containsValue} are implemented as bulk read operations, and thus may fail to observe concurrent
   * writes.

          // Keep looping till we find a non-duplicate value.
          if (!duplicate) {
            lastValue = next;
            return lastValue;
          }
        }

        lastValue = null; // clear reference to unused data
        return endOfData();
      }
    };
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

        }

        assertEquals(5, keyManager.getKeyCount(), "Should have 5 keys");

        keyManager.clearAllKeys();

        assertEquals(0, keyManager.getKeyCount(), "Should have no keys after clear");

        // Verify all keys are removed
        for (int i = 0; i < 5; i++) {
            assertFalse(keyManager.hasSessionKey("session-" + i), "Key should be removed");
        }
    }

    @Test