if (currentIndex < connections.size()) {
                return connections.get(currentIndex++);
            }
            throw new IOException("No more connections available");
        }
    }

        try {
            final RESULT result = entityType.newInstance();
            result.setAvailable(DfTypeUtil.toBoolean(source.get("available")));
            result.setCrawler(DfTypeUtil.toBoolean(source.get("crawler")));
            result.setCreatedBy(DfTypeUtil.toString(source.get("createdBy")));

                // Wrong TOK_ID
                Arguments.of("wrong TOK_ID", new byte[] { 0x00, 0x02, 0x00, 0x01 }, IllegalArgumentException.class),

                // OID length claims more than available
                Arguments.of("oid length exceeds buffer", new byte[] { 0x04, 0x01, 0x00, 0x10, 0x06 }, IllegalArgumentException.class),

                // Missing NAME_LEN (not enough bytes for 4-byte length)

     * Interval in milliseconds for checking channel health
     */
    protected int channelHealthCheckInterval;

    // RDMA configuration
    /**
     * Flag indicating whether RDMA transport should be used when available
     */
    protected boolean useRDMA;
    /**
     * RDMA provider implementation to use (e.g. "disni" or "tcp")
     */
    protected String rdmaProvider;
    /**

            }
        } catch (final Exception e) {
            logger.warn("Failed to ensure bucket exists: {}", bucket, e);
        }
    }

    @Override
    public boolean isAvailable() {
        try {
            return storage.get(bucket) != null;
        } catch (final Exception e) {
            return false;
        }
    }

    @Override
    public void close() {

     * @param localName the local name without prefix, or empty string if namespace processing is not performed
     * @param qName the qualified name with prefix, or empty string if qualified names are not available
     * @param attributes the attributes attached to the element
     * @throws SAXException if a SAX error occurs or if the XML format is invalid
     */
    @Override

                assertNotNull("Resource should exist", is);

                // Simulate an exception during processing
                if (is.available() > 0) {
                    throw new RuntimeException("Simulated processing error");
                }
            }
            fail("Should have thrown RuntimeException");
        } catch (RuntimeException e) {

                    return this.handle.acquire();
                }

                // Wait for named pipe availability - called when pipe is not immediately available
                if (this.uncPath.startsWith("\\pipe\\")) {
                    th.send(new TransWaitNamedPipe(th.getConfig(), this.uncPath), new TransWaitNamedPipeResponse(th.getConfig()));
                }

     */
    public ProtocolHelper() {
        // Default constructor
    }

    /**
     * Initializes the protocol helper by loading configured protocols from FessConfig
     * and scanning for available protocol handlers in the classpath.
     * This method is called automatically after bean construction.
     */
    @PostConstruct
    public void init() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

mvn formatter:format

# Apply license headers to source files
mvn license:format

# Build JAR with all verifications
mvn clean package

# Generate test coverage report
mvn verify
# Coverage report available at: target/site/jacoco/index.html
```

### Project Structure
```
corelib/
├── src/main/java/org/codelibs/core/
│   ├── beans/          # Bean manipulation and introspection