assertNull(user.getName());

        // Test with special characters in name
        user = new TestFessUser("******@****.***", new String[] {}, new String[] {}, new String[] {});
        assertEquals("******@****.***", user.getName());

        // Test with Unicode characters
        user = new TestFessUser("ユーザー名", new String[] {}, new String[] {}, new String[] {});

    // 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");

import java.io.EOFException
import okio.Buffer

/**
 * Returns true if the body in question probably contains human readable text. Uses a small
 * sample of code points to detect unicode control characters commonly used in binary file
 * signatures.
 */
fun Buffer.isProbablyUtf8(): Boolean {
  try {
    val prefix = Buffer()
    val byteCount = size.coerceAtMost(64)
    copyTo(prefix, 0, byteCount)

    private static final long serialVersionUID = 0;
  }

  /**
   * Creates a {@code HashCode} from a hexadecimal ({@code base 16}) encoded string. The string must
   * be at least 2 characters long, and contain only valid, lower-cased hexadecimal characters.
   *
   * <p>This method accepts the exact format generated by {@link #toString}. If you require more

  @BeforeExperiment
  public void setUp() {
    // precalculate some random strings of ascii characters.
    StringBuilder sb = new StringBuilder();
    Random random = new Random(0xdeadbeef); // for unpredictable but reproducible behavior
    sb.ensureCapacity(size);
    for (int k = 0; k < size; k++) {
      // [9-127) includes all ascii non-control characters
      sb.append((char) (random.nextInt(127 - 9) + 9));
    }
    data = sb.toString();

            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();
            }
        }
    }

      into.putBytes(from);
    }

    @Override
    public String toString() {
      return "Funnels.byteArrayFunnel()";
    }
  }

  /**
   * Returns a funnel that extracts the characters from a {@code CharSequence}, a character at a
   * time, without performing any encoding. If you need to use a specific encoding, use {@link
   * Funnels#stringFunnel(Charset)} instead.
   *

      into.putBytes(from);
    }

    @Override
    public String toString() {
      return "Funnels.byteArrayFunnel()";
    }
  }

  /**
   * Returns a funnel that extracts the characters from a {@code CharSequence}, a character at a
   * time, without performing any encoding. If you need to use a specific encoding, use {@link
   * Funnels#stringFunnel(Charset)} instead.
   *

        assertNull(exception.getCause());
    }

    public void test_constructor_withSpecialCharacters() {
        // Test constructor with special characters
        String type = "Token-Type_123!@#";
        String message = "Error: Token contains special characters <>&\"'";
        InvalidAccessTokenException exception = new InvalidAccessTokenException(type, message);

        assertEquals(type, exception.getType());

        // 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