public void test_crawl_withSessionId_emptyConfigList() {
        try {
            dataIndexHelper.crawl("test-session");
            assertTrue("Should complete quickly with empty config list", true);
        } catch (Exception e) {
            assertTrue("Exception handling should be fast", true);
        }
    }

    public void test_crawl_withConfigIdList_emptyList() {
        try {

        String username = "nonexistentuser";

        try {
            throw new FessUserNotFoundException(username);
        } catch (FessUserNotFoundException e) {
            assertEquals("User is not found: nonexistentuser", e.getMessage());
            assertNull(e.getCause());
        } catch (Exception e) {
            fail("Should have caught FessUserNotFoundException");
        }
    }

                throw new CommandExecutionException("The command execution is timeout: " + String.join(" ", commands));
            }
            return exitValue;
        } catch (final CrawlerSystemException e) {
            throw e;
        } catch (final InterruptedException e) {
            if (mt != null && mt.isTeminated()) {

                    response.setHeader("Content-Type", responseContentType);
                }
                CopyUtil.copy(in, out);
            } catch (final ClientAbortException e) {
                logger.debug("Client aborts this request.", e);
            }
        } catch (final Exception e) {
            if (!(e.getCause() instanceof ClientAbortException)) {

                bw.flush();
            } catch (IOException e) {
                throw new IORuntimeException(e);
            }
        }).execute()) {
            if (logger.isDebugEnabled()) {
                logger.debug("Bulk Response:\n{}", response.getContentAsString());
            }
            systemHelper.reloadConfiguration(resetJobs.get());
        } catch (final Exception e) {

        this.connectionState.set(2); // connected

        try {
            validateNegotiation(transport, sess);
        } catch (final CIFSException se) {
            try {
                transport.disconnect(true);
            } catch (final IOException e) {
                log.warn("Failed to disconnect transport", e);
                se.addSuppressed(e);
            }
            throw se;

    } catch (ignored: IllegalArgumentException) {
    }
    try {
      builder.connectTimeout(Duration.ofNanos(1))
    } catch (ignored: IllegalArgumentException) {
    }
    try {
      builder.writeTimeout(Duration.ofNanos(1))
    } catch (ignored: IllegalArgumentException) {
    }
    try {
      builder.readTimeout(Duration.ofNanos(1))
    } catch (ignored: IllegalArgumentException) {
    }

            // endpoint.connect(remoteAddress, 1000);  // 1 second timeout

            state = RdmaConnectionState.CONNECTED;
            log.debug("DiSNI RDMA connection established to {}", remoteAddress);

        } catch (Exception e) {
            state = RdmaConnectionState.ERROR;
            throw new IOException("DiSNI RDMA connection failed", e);
        }
    }

    @Override

                try {
                    trans.ensureConnected();
                } catch (final IOException e) {
                    removeTransport(trans);
                    throw e;
                }
                return trans.acquire();
            } catch (final IOException e) {
                final String hostAddress = addr.getHostAddress();

      val byteRead = inputStream.read()
      // OpenJDK behavior: end of stream.
      assertThat(byteRead).isEqualTo(-1)
    } catch (e: ProtocolException) {
      // On Android, HttpURLConnection is implemented by OkHttp v2. OkHttp
      // treats an incomplete response body as a ProtocolException.
    } catch (ioe: IOException) {
      // Change in https://bugs.openjdk.org/browse/JDK-8335135