public void test_init() {
        try {
            languageHelper.init();
            // Should not throw exception
        } catch (Exception e) {
            fail("init() should not throw an exception: " + e.getMessage());
        }
    }

    public void test_updateDocument_withExistingLang() {
        Map<String, Object> doc = new HashMap<>();
        doc.put("lang", "ja");
        doc.put("title", "タイトル");

            Exception thrownException = assertThrows(Exception.class, mockSession::close, "close() should propagate exceptions");
            assertEquals("Test close exception", thrownException.getMessage());
        }
    }

    @Nested
    @DisplayName("Configuration Access Tests")
    class ConfigurationAccessTest {

        @Test

            IllegalStateException exception = assertThrows(IllegalStateException.class, () -> {
                testRequest.encode(buffer, 0);
            });

            assertTrue(exception.getMessage().contains("Wrong size calculation"));
        }
    }

    // Test implementation classes
    private static class TestServerMessageBlock2Request extends ServerMessageBlock2Request<TestServerMessageBlock2Response> {

            System.out.println("Async suggestion: " + item.getText()[0])
        );
    })
    .error(throwable -> {
        // Handle error
        System.err.println("Error: " + throwable.getMessage());
    });
```

## Advanced Usage

### Index from Existing Documents

```java
import org.codelibs.fess.suggest.index.contents.document.ESSourceReader;

            try {
                setupMinioClient(bucketName, endpoint);
                break;
            } catch (final Exception e) {
                logger.warn("[{}] {}", i + i, e.getMessage());
            }
            ThreadUtil.sleep(1000L);
        }
    }

    private void setupMinioClient(String bucketName, String endpoint) throws Exception {

    }

    boolean hasCapability(final int cap) throws SmbException {
        try {
            connect(RESPONSE_TIMEOUT);
        } catch (final IOException ioe) {
            throw new SmbException(ioe.getMessage(), ioe);
        }
        return (capabilities & cap) == cap;
    }

    boolean isSignatureSetupRequired(final NtlmPasswordAuthentication auth) {

            if (this.negotiated == null) {
                connect(this.transportContext.getConfig().getResponseTimeout());
            }
        } catch (final IOException ioe) {
            throw new SmbException(ioe.getMessage(), ioe);
        }
        final SmbNegotiationResponse r = this.negotiated;
        if (r == null) {
            throw new SmbException("Connection did not complete, failed to get negotiation response");
        }

                            try {
                                return "<<< " + new String(bytes, 0, len, encoding);
                            } catch (final Exception e) {
                                return "<<< <" + e.getMessage() + ">";
                            }
                        });
                        dfos.write(bytes, 0, length);
                    }
                    length = bis.read(bytes);
                }

            ioe = (TransportException) root;
            root = ioe.getCause();
        }
        if (root instanceof InterruptedException) {
            ioe = new InterruptedIOException(root.getMessage());
            ioe.initCause(root);
        }
        return ioe;
    }

    /**
     * Closes this input stream and releases any system resources associated with the stream.
     *

                        timeout -= System.currentTimeMillis() - start;
                    }

                } catch (final InterruptedException ie) {
                    throw new IOException(ie.getMessage());
                } finally {
                    responseTable.remove(nid);
                }

                synchronized (LOCK) {
                    if (!NbtAddress.isWINS(request.addr)) {