// Test with all special characters
        char[] plaintext = "!@#$%^&*()_+-=[]{}|;':\",./<>?`~\t\n\r".toCharArray();

        byte[] encrypted = storage.encryptCredentials(plaintext);
        char[] decrypted = storage.decryptCredentials(encrypted);

        assertArrayEquals(plaintext, decrypted, "Special characters should be preserved");

        // Clean up

        // Test with special characters in message
        String message = "LDAP error: \n\t\r Special chars: @#$%^&*(){}[]|\\:;\"'<>,.?/~`";
        LdapOperationException exception = new LdapOperationException(message);

        assertEquals(message, exception.getMessage());
    }

    public void test_unicodeMessage() {
        // Test with Unicode characters in message

        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_withSpecialCharactersInMessage() {
        // Test with special characters in message
        String message = "Error with special chars: \n\t\r\"'<>&";
        ScriptEngineException exception = new ScriptEngineException(message);

        assertEquals(message, exception.getMessage());

        assertEquals("Invalid parameter", nestedCause.getMessage());
    }

    public void test_messageWithSpecialCharacters() {
        // Test message with special characters
        String message = "Theme error: 日本語 & special <characters> \"quoted\" 'text'";
        ThemeException exception = new ThemeException(message);

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
    }

            generator.generate("test_id", outputFile);
            assertTrue("Should handle special characters in paths", true);
        } catch (final Exception e) {
            assertTrue("Exception handling for special characters", true);
        } finally {
            if (outputFile.exists()) {
                outputFile.delete();
            }
        }
    }

        // Test null input
        assertEquals("null", InputValidator.sanitizeForLogging(null));

        // Test normal string without control characters
        assertEquals("test", InputValidator.sanitizeForLogging("test"));

        // Test removal of control characters (they are removed, not replaced with spaces)
        assertEquals("teststring", InputValidator.sanitizeForLogging("test\0string"));

    // A 4n+1 length string is never legal base64().
    assertFailsToDecode(base64(), "12345", "Invalid input length 5");
    // These have a combination of invalid length, unrecognized characters and wrong padding.
    assertFailsToDecode(base64(), "AB=C", "Unrecognized character: =");
    assertFailsToDecode(base64(), "A=BCD", "Invalid input length 5");
    assertFailsToDecode(base64(), "?", "Invalid input length 1");

        assertEquals(statusCode, exception.getStatusCode());
        assertEquals(message, exception.getMessage());
    }

    public void test_exceptionWithSpecialCharactersInMessage() {
        // Test with special characters in message
        int statusCode = 400;
        String message = "Error: \"Invalid JSON\" - {key: 'value'} \n\t@#$%^&*()";

        WebApiException exception = new WebApiException(statusCode, message);

 * This class represents the form data structure for installing a plugin
 * via file upload through the admin UI.
 */
public class InstallForm {

    /** Plugin identifier (required, max 400 characters) */
    @Required
    @Size(max = 400)
    public String id;

    /**
     * Default constructor.
     */
    public InstallForm() {
        // Default constructor
    }

  }

  /**
   * Strip unexpected characters when converting to URI (which is more strict).
   * https://github.com/square/okhttp/issues/5667
   */
  @Test
  fun hostToUriStripsCharacters() {
    val httpUrl = "http://example\".com/".toHttpUrl()
    assertThat(httpUrl.toUri().toString()).isEqualTo("http://example.com/")
  }

  /** Confirm that URI retains other characters. https://github.com/square/okhttp/issues/5236 */
  @Test