- Language items are cached for 1 hour by `SystemHelper`
- Restart the application after adding new languages

### Auto-Generated Files

Never edit these files manually (marked with `@author FreeGen`):
- `FessLabels.java`
- `FessMessages.java`

Always regenerate them using `mvn dbflute:freegen`

## Complete Example: Adding Swedish (sv)

```bash
# 1. Navigate to resources directory
cd src/main/resources

1.  Make sure the Issue Template is filled out.
1.  The issue should be related to the repo it is created in.

**Here's why we have this policy:** We want to focus on the work that benefits
the whole community, e.g., fixing bugs and adding features. Individual support
should be sought on Stack Overflow or other non-GitHub channels. It helps us to

  }

  /** Test equalObjects after adding multiple instances at once with a null */
  public void testAddTwoEqualObjectsAtOnceWithNull() {
    assertThrows(
        NullPointerException.class,
        () -> equalsTester.addEqualityGroup(reference, equalObject1, null));
  }

  /** Test adding null equal object yields error */
  public void testAddNullEqualObject() {
    assertThrows(

        project.getPluginManager().apply(LoggerUsagePrecommitPlugin.class);
        project.getPluginManager().apply(JarHellPrecommitPlugin.class);

        // tasks with just tests don't need certain tasks to run, so this flag makes adding
        // the task optional
        if (withProductiveCode) {
            project.getPluginManager().apply(ThirdPartyAuditPrecommitPlugin.class);

* Edit the text of the PR title to start in "imperative", like giving an order. So, instead of `Adding support for teleporting` use `Add support for teleporting`.

import org.gradle.api.Plugin;
import org.gradle.api.Project;
import org.gradle.api.Task;
import org.gradle.api.plugins.JavaPluginExtension;
import org.gradle.api.tasks.TaskProvider;

/**
 * Base plugin for adding a precommit task.
 */
public abstract class PrecommitPlugin implements Plugin<Project> {

    public static final String PRECOMMIT_TASK_NAME = "precommit";

    @Override
    public final void apply(Project project) {

        // Test with empty strings
        result = jobExecutor.execute("", "");
        assertEquals("Executed:  ", result);
    }

    @Test
    public void test_addShutdownListener() {
        // Test adding shutdown listener
        AtomicBoolean shutdownCalled = new AtomicBoolean(false);
        ShutdownListener listener = new ShutdownListener() {
            @Override
            public void onShutdown() {

 *   <li>{@code Client} - The client used for accessing the settings.</li>
 * </ul>
 *
 * <p>Logging:</p>
 * <ul>
 *   <li>Uses {@code Logger} to log debug information when adding, deleting, or deleting all elevate words.</li>
 * </ul>
 */
public class ElevateWordSettings {
    private static final Logger logger = LogManager.getLogger(ElevateWordSettings.class);

///

### What is "Mounting" { #what-is-mounting }

"Mounting" means adding a complete "independent" application in a specific path, that then takes care of handling all the sub-paths.

    checkNotNull(runnable, "Runnable was null.");
    checkNotNull(executor, "Executor was null.");

    // Lock while we check state. We must maintain the lock while adding the new pair so that
    // another thread can't run the list out from under us. We only add to the list if we have not
    // yet started execution.
    synchronized (lock) {
      if (!executed) {