ServletException servletException = new ServletException();

        // Wrap it in ServletRuntimeException
        ServletRuntimeException runtimeException = new ServletRuntimeException(servletException);

        // Verify that the cause is correctly set
        assertNotNull(runtimeException);
        assertEquals(servletException, runtimeException.getCause());

import org.codelibs.fess.cors.CorsHandlerFactory;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;

import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.ServletRequest;
import jakarta.servlet.ServletResponse;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

        try {
            manager.process(request, response, chain);
            fail("Expected ServletException");
        } catch (ServletException e) {
            assertEquals("Test error", e.getMessage());
        }
    }

    public void test_process_withNullParameters() throws IOException, ServletException {
        // Test null parameter handling
        TestWebApiManager manager = new TestWebApiManager("/api");

        public boolean authenticate(HttpServletResponse response) throws IOException, ServletException {
            return false;
        }

        @Override
        public void login(String username, String password) throws ServletException {
        }

        @Override
        public void logout() throws ServletException {
        }

        @Override

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

        networkExplorer = new NetworkExplorer() {
            @Override
            public void init(ServletConfig config) throws ServletException {
                try {
                    setFieldsViaReflection(this, false, "jCIFS");
                } catch (Exception e) {
                    throw new ServletException(e);
                }
            }

            @Override

        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
            // Do nothing - just for testing
        }

        @Override
        protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
            // Do nothing - just for testing
        }
    }

                    throws IOException, ServletException {
                if (skipAuthentication) {
                    return null;
                }
                return super.negotiate(req, resp, skipAuthentication);
            }

            @Override
            public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {

     * @throws IOException If an IO error occurs.
     * @throws ServletException If an error occurs.
     */
    public NtlmPasswordAuthentication doAuthentication(final HttpServletRequest req, final HttpServletResponse resp, final byte[] challenge)
            throws IOException, ServletException {
        return authenticate(req, resp, challenge);
    }

    /**

        } catch (final CIFSException ex) {
            throw new ServletException("Failed to initialize config", ex);
        }
    }

    @Override
    protected void service(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
        Address dc;