} 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");

│       ├── __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 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);

        assertNotNull(context);
        assertEquals("CustomOS", context.getConfig().getNativeOs());
    }

    @Test
    void testInitIOExceptionHandling(@TempDir Path tempDir) {
        // Test handling IOException when loading jcifs.properties
        Path nonExistentPath = tempDir.resolve("nonexistent.properties");
        System.setProperty("jcifs.properties", nonExistentPath.toString());

package org.codelibs.core.beans;

import java.lang.reflect.Type;
import java.lang.reflect.TypeVariable;
import java.util.Map;

import org.codelibs.core.beans.factory.BeanDescFactory;

/**
 * Interface for handling JavaBeans metadata.
 * <p>
 * Instances of {@link BeanDesc} are obtained from {@link BeanDescFactory}.
 * </p>
 *
 * <pre>
 * BeanDesc beanDesc = BeanDescFactory.getBeanDesc(Foo.class);
 * </pre>
 * <p>

        I end up not being able to add new features, fix bugs, review pull requests, etc. as fast as I wish because I have to spend too much time handling questions.

        // Test null input handling
        try {
            KuromojiCSVUtil.quoteEscape(null);
            fail("Should throw NullPointerException for null input");
        } catch (NullPointerException e) {
            // Expected behavior
        }
    }

    public void test_parse_null_input() {
        // Test null input handling
        try {
            KuromojiCSVUtil.parse(null);