try {
            handshake();
        } catch (final IOException ex) {}
        return connection.getContent(classes);
    }

    @Override
    public Permission getPermission() throws IOException {
        return connection.getPermission();
    }

    @Override
    public InputStream getInputStream() throws IOException {
        try {
            handshake();

        assertNotNull(testConverter);
    }

    @Test
    public void testInit() throws IOException {
        // Test init method (should do nothing)
        converter.init();
        // No exception should be thrown
    }

    @Test
    public void testConvertWithNoLanguages() throws IOException {
        // Test convert with no languages specified
        String text = "test text";

     */
    public abstract void connect() throws IOException;
    
    /**
     * Send data using RDMA
     */
    public abstract void send(ByteBuffer data, RdmaMemoryRegion region) throws IOException;
    
    /**
     * Receive data using RDMA  
     */
    public abstract ByteBuffer receive(int timeout) throws IOException;
    
    /**
     * Perform RDMA read operation
     */

        };
        ComponentUtil.register(factory, "webApiManagerFactory");

        // Execute and expect IOException
        try {
            webApiFilter.doFilter(request, response, chain);
            fail("Expected IOException");
        } catch (IOException e) {
            assertEquals("Test IOException", e.getMessage());
        } catch (ServletException e) {

        @Override
        public void init() throws IOException {
            if (throwExceptionOnInit) {
                throw new IOException("Init failed");
            }
        }

        @Override
        public List<String> convert(String text, String field, String... langs) throws IOException {
            if (throwExceptionOnConvert) {
                throw new IOException("Convert failed");
            }

     *
     * @param request the request to create a key for
     * @throws IOException if an I/O error occurs
     */
    protected abstract void makeKey(Request request) throws IOException;

    /**
     * Reads and returns the key of the next message without consuming it.
     *
     * @return the request key of the next message
     * @throws IOException if an I/O error occurs
     */

     *
     * @throws IOException if connection fails
     */
    private void testConnection() throws IOException {
        // For now, just test basic connectivity to RPC endpoint
        try (java.net.Socket socket = new java.net.Socket()) {
            socket.connect(new java.net.InetSocketAddress(serverAddress, WITNESS_RPC_PORT), WITNESS_RPC_TIMEOUT_MS);
        } catch (IOException e) {

        }

        @Test
        @DisplayName("Should throw IOException when handle is stale")
        void testDoSendReceiveFragment_StaleHandle() throws Exception {
            DcerpcPipeHandle handle = createMockedDcerpcPipeHandle();
            when(mockSmbPipeHandleInternal.isStale()).thenReturn(true);

            assertThrows(IOException.class, () -> handle.doSendReceiveFragment(new byte[10], 0, 10, new byte[10]));
        }

    /**
     * Get the address the service is listening on
     *
     * @return the service address
     * @throws IOException if address cannot be determined
     */
    public InetAddress getAddress() throws IOException {
        if (serverSocket == null) {
            throw new IOException("Service not started");
        }
        return InetAddress.getLocalHost();
    }

    /**

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.math.BigInteger;
import java.util.Date;

import org.junit.jupiter.api.Test;

import jcifs.SmbConstants;
import jcifs.smb.SID;

public class PacDataInputStreamTest {

    // Helper to create PacDataInputStream from a byte array
    private PacDataInputStream createInputStream(byte[] data) throws IOException {