│       ├── __init__.py  # makes "internal" a "Python subpackage"
│       └── admin.py     # "admin" submodule, e.g. import app.internal.admin
```

## `APIRouter` { #apirouter }

Let's say the file dedicated to handling just users is the submodule at `/app/routers/users.py`.

You want to have the *path operations* related to your users separated from the rest of the code, to keep it organized.

import jcifs.SmbResource;
import jcifs.SmbResourceLocator;
import jcifs.context.SingletonContext;

/**
 * Tests for NetServerFileEntryAdapterIterator.
 *
 * Intent: Validate iteration behavior, filtering, invalid inputs handling,
 * and delegation to the underlying iterator.
 */
@ExtendWith(MockitoExtension.class)
class NetServerFileEntryAdapterIteratorTest {

    @Mock
    NetServerEnumIterator delegate;

    @Mock

        } catch (Exception e) {
            fail("setObject should handle different object types: " + e.getMessage());
        }
    }

    public void test_error_handling_edge_cases() {
        // Test error handling with edge cases
        try {
            // Test with extreme status codes
            WebApiUtil.setError(-1, "Negative status code");
            WebApiUtil.setError(0, "Zero status code");

 */
package org.codelibs.fess.app.pager;

import java.io.Serializable;
import java.util.List;

import org.codelibs.fess.util.ComponentUtil;

/**
 * Pager class for handling user list pagination.
 * This class manages pagination state and user search criteria for the user management interface.
 */
public class UserPager implements Serializable {

    /**

/// tip | Dica

Para resolver esse mesmo problema, é provavelmente muito mais fácil usar o `body` em um manipulador personalizado para `RequestValidationError` ([Tratando Erros](../tutorial/handling-errors.md#use-the-requestvalidationerror-body){.internal-link target=_blank}).

Mas esse exemplo ainda é valido e mostra como interagir com os componentes internos.

///

In most cases you would (and should) have a "termination proxy" handling HTTPS for you on top, this will depend on how you deploy your application, your provider might do this for you, or you might need to set it up yourself.

/// tip

import org.codelibs.core.io.FileUtil;
import org.codelibs.core.log.Logger;
import org.codelibs.core.net.JarURLConnectionUtil;
import org.codelibs.core.net.URLUtil;

/**
 * Utility class for handling {@link java.util.jar.JarFile}.
 *
 * @author higa
 */
public abstract class JarFileUtil {

    /**
     * Do not instantiate.
     */
    protected JarFileUtil() {
    }

/// tip | Consejo

Para resolver este mismo problema, probablemente sea mucho más fácil usar el `body` en un manejador personalizado para `RequestValidationError` ([Manejo de Errores](../tutorial/handling-errors.md#use-the-requestvalidationerror-body){.internal-link target=_blank}).

Pero este ejemplo sigue siendo válido y muestra cómo interactuar con los componentes internos.

///

        assertEquals(newState, entry.getLeaseState());
        assertEquals(initialEpoch + 1, entry.getEpoch());
        assertFalse(entry.isBreaking()); // Should be false after break handling completes
    }

    @Test
    @DisplayName("Should release lease")
    void testReleaseLease() {
        String path = "/share/file.txt";
        int requestedState = Smb2LeaseState.SMB2_LEASE_READ_HANDLE;

        // Act + Assert
        assertThrows(NullPointerException.class, () -> SmbCopyUtil.openCopyTargetFile(dest, SmbConstants.ATTR_NORMAL, false));
    }

    // --- Tests for copyFile exception handling branch ---

    @Nested
    class CopyFileExceptions {

        private SmbTreeHandleImpl newTreeHandle(boolean isSmb2) throws Exception {
            SmbTreeHandleImpl th = mock(SmbTreeHandleImpl.class);