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A JUnit rule that runs an in-memory SFTP server.

License: MIT License

Java 100.00%

sftp sftp-server junit-rule java test unittest inmemory

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Require to use the fake sftp server with java 1.7

Our project requires the use of fake sftp server with java 1.7

SSH key support

The rule is working fine but I'd like to use it also with an identity file.
Would you mind a PR on this topic?

The aim is to support authentication via an SSH public/private key pair.

If it's ok for you then there is already an implementation in #15

fake-sftp-server-rule compatible with java 7

In junit 5 this library throws "test has not been started or is already finished" from verifyThatTestIsRunning method because of @rule is no more there in junit 5. so is there any other version compatible with Junit 5 ?

multiple errors

I'm gettin an error when trying to create a directory, put a file

Creating directory:

Error auto creating directory: folder due File operation failed: Could not parse response code.
Server Reply: SSH-2.0-SSHD-CORE-1.7.0. Code: 0. This exception is ignored.

Reading file:

Caused by: org.apache.commons.net.MalformedServerReplyException: Could not parse response code.
Server Reply: SSH-2.0-SSHD-CORE-1.7.0

When disconnecting:

Error occurred while disconnecting from ftps://admin@localhost:12345 due: File operation failed: Could not parse response code.
Server Reply: Unsupported protocol version: QUIT
. Code: 0. This exception will be ignored.

This is how I declare it:

@Rule
    public final FakeSftpServerRule sftpServer = new FakeSftpServerRule()
            .setPort(12345)
            .addUser("admin", "admin");

and this is how I create folder and put file, in @PostConstruct method:

sftpServer.createDirectory("/folder");
        sftpServer.putFile("/folder/myfile_20180115082245.csv", CSV_CONTENTS, StandardCharsets.UTF_8);

The file is read by apache camel ftp, using this route:
ftps://admin@localhost:12345/folder?binary=true&connectTimeout=5000

PowerMock and FakeSftpServerRule Server wont start

I have a worst case scenario application i have to write unit test for.
Much static & legacy code.
I managed to get it running by powermock static methods.
One Unit test has to run against a SFTP Server.
I tried your rule in a clean env. and it works as designed.
But when i add it to our code, the server wont start. (Tired with FileZilla to connect to the random port).

package de.itout.spinterface.interfaces.fileDistributor;

import com.github.stefanbirkner.fakesftpserver.rule.*;
import de.gsq.system.*;
import de.itout.spinterfaces.*;
import de.itout.spinterfaces.interfaces.*;
import java.io.*;
import java.net.*;
import static java.nio.charset.StandardCharsets.UTF_8;
import java.util.*;
import org.junit.*;
import static org.junit.Assert.*;
import org.junit.runner.*;
import static org.mockito.Mockito.*;
import org.powermock.api.mockito.*;
import org.powermock.core.classloader.annotations.*;
import org.powermock.modules.junit4.*;

/**
 * Unit Test der Schnittstelle FileDistributor.
 *
 * Testcase: File SFTP Upload.
 *
 * @author swendelmann
 */
@RunWith(PowerMockRunner.class)
@PrepareForTest(VO.class)
@PowerMockIgnore(
  {
    "javax.management.*", "javax.script.*", "org.apache.sshd.*", "com.github.*"
  })
public class FileDistributorSFTPUploadTest
{

  /**
   * Interface to Test.
   */
  private SPInterface inter;

  @Rule
  public final FakeSftpServerRule sftpServer = new FakeSftpServerRule().addUser("username", "password");

  private final String sftpDir = "/data";
  private final String sftpUser = "username";
  private final String sftpPass = "password";
  private File testFile;

  public FileDistributorSFTPUploadTest()
  {
  }

  @Before
  public void setUp() throws URISyntaxException, IOException
  {
    Environment.getInstance().setApplicationType(Environment.APPLICATION_TYPE_CLI);

    PowerMockito.mockStatic(VO.class);
    PowerMockito.when(VO.getVO(anyString())).thenReturn("mocked");
    PowerMockito.when(VO.getVO(anyString(), any(Object[].class))).thenReturn("mocked");
    PowerMockito.when(VO.getVO(anyString(), any(Object[].class), anyString())).thenReturn("mocked");
    PowerMockito.when(VO.getVO(anyString(), any(Class.class))).thenReturn("mocked");
    PowerMockito.when(VO.getVOEntry(anyString(), anyString(), anyString(), any(Object[].class), anyString(), anyString())).thenReturn("mocked");

    // Interface Setup
    inter = new FileDistributor();
    inter.setLaufID("FD00002");
    inter.setSchnittstelle("FileDist");
    inter.setVersion("FD02");

    testFile = new File(getClass().getClassLoader().getResource("order.csv").toURI());

    sftpServer.createDirectory(sftpDir);

  }

  @After
  public void tearDown()
  {
  }

  @Test
  public void ftpUloadFileFromFilesystem() throws URISyntaxException, IOException
  {
    // Init Interface Parameter
    HashMap<String, SPInterface.ParameterHeader> header = new HashMap<>();
    LinkedHashMap<String, SPParameter> parameter = new LinkedHashMap<>();
    header.put("SAVE_DIC", inter.new ParameterHeader("A", 1, "Sicherungsverzeichnis"));
    header.put("IN_DIR", inter.new ParameterHeader("A", 1, "Input Verzeichnis"));
    header.put("FILESEL", inter.new ParameterHeader("A", 1, "Datei Selection"));
    header.put("SFTP", inter.new ParameterHeader("A", 1, "SFTP übertragen?"));
    header.put("SFTPDIR", inter.new ParameterHeader("A", 1, "SFTP Verz"));
    header.put("SFTPHOST", inter.new ParameterHeader("A", 1, "SFTP host"));
    header.put("SFTPPORT", inter.new ParameterHeader("A", 1, "SFTP Port"));
    header.put("SFTPUSER", inter.new ParameterHeader("A", 1, "SFTP User"));
    header.put("SFTPPWD", inter.new ParameterHeader("A", 1, "SFTP PWD"));

    parameter.put("SAVE_DIC_1", new SPParameter("A", "test-save-dic", 0, "", "Sicherungsverzeichnis"));
    parameter.put("IN_DIR_1", new SPParameter("A", testFile.getParent(), 0, "", "Input Verzeichnis"));
    parameter.put("FILESEL_1", new SPParameter("A", testFile.getName(), 0, "", "Datei Selection"));
    parameter.put("SFTP_1", new SPParameter("A", "JA", 0, "", "SFTP übertragen?"));
    parameter.put("SFTPDIR_1", new SPParameter("A", sftpDir, 0, "", "SFTP Verz"));
    parameter.put("SFTPHOST_1", new SPParameter("A", "localhost", 0, "", "SFTP host"));
    parameter.put("SFTPPORT_1", new SPParameter("A", "", sftpServer.getPort(), "", "SFTP Port"));
    parameter.put("SFTPUSER_1", new SPParameter("A", sftpUser, 0, "", "SFTP User"));
    parameter.put("SFTPPWD_1", new SPParameter("A", sftpPass, 0, "", "SFTP PWD"));
    inter.loadTestParameter(header, parameter);

    inter.startTest();

    // Assertions
    // Assert Interface Values (status, appended files, logging, etc.)
    assertEquals(SPInterface.OK, inter.getLaufStatus());
    assertTrue(inter.getLaufDateien().stream().filter(o -> o.getDatei().equals(testFile.getName())).findFirst().isPresent());
    assertTrue(sftpServer.existsFile(sftpDir + "/order.csv"));
    assertEquals("A;B;C", sftpServer.getFileContent(sftpDir + "/order.csv", UTF_8));

    //TODO: Weitere Assertions definieren.
  }

}

The Output

Running de.itout.spinterface.interfaces.fileDistributor.FileDistributorSFTPUploadTest
ERROR StatusLogger Unrecognized format specifier [d]
ERROR StatusLogger Unrecognized conversion specifier [d] starting at position 16 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [thread]
ERROR StatusLogger Unrecognized conversion specifier [thread] starting at position 25 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [level]
ERROR StatusLogger Unrecognized conversion specifier [level] starting at position 35 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [logger]
ERROR StatusLogger Unrecognized conversion specifier [logger] starting at position 47 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [msg]
ERROR StatusLogger Unrecognized conversion specifier [msg] starting at position 54 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [n]
ERROR StatusLogger Unrecognized conversion specifier [n] starting at position 56 in conversion pattern.
ERROR StatusLogger No Log4j 2 configuration file found. Using default configuration (logging only errors to the console), or user programmatically provided configurations. Set system property 'log4j2.debug' to show Log4j 2 internal initialization logging. See https://logging.apache.org/log4j/2.x/manual/configuration.html for instructions on how to configure Log4j 2
ERROR StatusLogger Unrecognized format specifier [d]
ERROR StatusLogger Unrecognized conversion specifier [d] starting at position 16 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [thread]
ERROR StatusLogger Unrecognized conversion specifier [thread] starting at position 25 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [level]
ERROR StatusLogger Unrecognized conversion specifier [level] starting at position 35 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [logger]
ERROR StatusLogger Unrecognized conversion specifier [logger] starting at position 47 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [msg]
ERROR StatusLogger Unrecognized conversion specifier [msg] starting at position 54 in conversion pattern.
ERROR StatusLogger Unrecognized format specifier [n]
ERROR StatusLogger Unrecognized conversion specifier [n] starting at position 56 in conversion pattern.

pom dependency error com.github.marschall 1.0.1-SNAPSHOT

Hi,

Thanks a lot for this rule, it is a great help for me, and testing my project.

I think recently, the version of dependency com.github.marschall rose to 1.0.1-SNAPSHOT and my project can't compile anymore.

[ERROR] Failed to execute goal on project common: Could not resolve dependencies for project ..*:common:jar:0.0.1-SNAPSHOT: Could not find artifact com.github.marschall:memoryfilesystem:jar:1.0.1-SNAPSHOT -> [Help 1]

I was able to resolve it by excluding the dependency in your module, and importing version 1.0.0 of com.github.marschall.

incompatibility with sshd-core 2.0.0

gradle now pulls in sshd-core 2.0.0 as depndency which is not compatible.

./gradlew dependencyInsight --configuration testCompile --dependency sshd

org.apache.sshd:sshd-core:[1,) -> 2.0.0
variant "runtime"
--- com.github.stefanbirkner:fake-sftp-server-rule:2.0.0
--- testCompile

with SSHD-815, the sftp component has been moved into its own module and org.apache.sshd.server.subsystem.sftp.SftpSubsystemFactory no longer exists in sshd-core.
this project needs to start declaring sshd-sftp as dependency or restrict the version of sshd-core to below 2.0.0

Getting Software caused connection abort: socket write error

Hi I am trying to integrate this fake-sftp-server-rule with my JUnits.

I started fake-sftp-server-rule and trying to make a connection with my client but I am facing below error.

com.jcraft.jsch.JSchException: java.net.SocketException: Software caused connection abort: socket write error

at com.jcraft.jsch.ChannelSftp.start(ChannelSftp.java:315)
at com.jcraft.jsch.Channel.connect(Channel.java:152)
at com.jcraft.jsch.Channel.connect(Channel.java:145)

fakesftpserver.txt

Attached the sample code snippet, Can you please help me connecting to sftp server and make uploads and download.

Thanks in advance,
Dinesh

TestNG support

Hi There,

You fake-sftp-server-rule seems really interesting, but I was wondering how I can use in TestNG. Do I have to manually start and stop the server? And if so How would this be done?

Best regards,

Baubak

junit5 compatible version

Would it be possible to alter the rule so that @EnableRuleMigrationSupport would work: https://medium.com/@GalletVictor/migration-from-junit-4-to-junit-5-d8fe38644abe

or better - make it an Extension?

Support Junit5 Jupiter

Are there any plans supporting junit 5 jupiter?

Cleaning file system

Could you create public method in FakeSftpServerRule for clean file system ?

Example of code


 public void clearFileSystem() {
        Iterable<Path> rootDirectories = fileSystem.getRootDirectories();
        if (rootDirectories != null) {
            stream(rootDirectories.spliterator(), false)
                    .forEach(path -> {
                        try {
                            walkFileTree(path, new SimpleFileVisitor<Path>() {

                                @Override
                                public FileVisitResult visitFile(Path file,
                                                                 BasicFileAttributes attrs) throws IOException {
                                    deleteContent(file);
                                    return CONTINUE;
                                }

                                private void deleteContent(Path file) throws IOException {
                                    if (file.getNameCount() != 0) {
                                        Files.delete(file);
                                    }
                                }

                                @Override
                                public FileVisitResult postVisitDirectory(Path dir, IOException exc)
                                        throws IOException {
                                    deleteContent(dir);
                                    return CONTINUE;
                                }
                            });
                        } catch (IOException e) {
                            log.error("Error during delete content", e);
                        }
                    });
        }
    }

Set file modification time during upload

I'm running a test suite where the modification time of a file is taken into account. Currently I have to add a Thread.sleep in order for these times to be different. It seems it is possible to set the modification time of a file using the BasicFileAttributeView It would be nice to be able to set the modification time during upload. (Maybe the creation time and last accessed time as well, but I don't know if they are supported by the underlying filesystem.)

FakeSftpServerRule.createDirectory should accept a varargs parameter

Hi,

it would be awesome if createDirectory would accept a varargs String parameter, something like

public void createDirectory(String... paths) throws IOException {
    this.verifyThatTestIsRunning("create directory");
    Arrays.stream(paths).forEach(path -> {
        Path pathAsObject = this.fileSystem.getPath(path, new String[0]);
        Files.createDirectories(pathAsObject, new FileAttribute[0]);
    });
}

This way, the method would still be backwards compatible but creating multiple directories would be simplified.

Get a directory listing or use wildcard with existsFile

feature request

I need to test if a file has been created without knowing the exact name of the file. The existsFile() function does almost what I need but only works using an exact path and file name.

The scenario is that the application is placing a file in a particular SFTP folder and adding a timestamp to the file name. The path to the folder is known and part of the file name is known, but the timestamp included in the file name is not exactly predictable.

Could it be possible to use a glob pattern wildcard? For example existsFile("/path/*_file.txt")

Alternatively, could it be possible to retrieve a directory listing? For example: listDirectory("/path"). I could then check the result to see if the file is present.

How to simulate failure scenario ?

The source code that I am creating unit tests has a lot of try catch block. How do I simulate failure scenario, so I can cover those catch blocks ? Is there I way we can customize the response or reply code of the different SFTP commands ?

Support for user accounts/testing credentials

It would be a nice feature if we could interact with the server using actual user credentials.

At a minimum, the server could accept one specific set of credentials (rather than accepting any client-provided credentials). Alternatively, a flag could be set that indicates the server should now refuse any connection attempts, returning authorization error as the cause.

ServiceConfigurationError when calling @Rule

Hi Stefan,

i was integrating your nice test tool fake-sftp-server-rule in our code and saldy got an exception.

  @Rule
  public final FakeSftpServerRule sftpServer = new FakeSftpServerRule().addUser("user", "pass");

ftpUloadFileFromFilesystem(de.itout.spinterface.interfaces.fileDistributor.FileDistributorSFTPUploadTest)  Time elapsed: 1.084 sec  <<< ERROR!
java.util.ServiceConfigurationError: java.nio.file.spi.FileSystemProvider: Provider org.apache.sshd.client.subsystem.sftp.SftpFileSystemProvider could not be instantiated
	at java.util.ServiceLoader.fail(ServiceLoader.java:232)
	at java.util.ServiceLoader.access$100(ServiceLoader.java:185)
	at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:384)
	at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
	at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
	at java.nio.file.spi.FileSystemProvider.loadInstalledProviders(FileSystemProvider.java:119)
	at java.nio.file.spi.FileSystemProvider.access$000(FileSystemProvider.java:77)
	at java.nio.file.spi.FileSystemProvider$1.run(FileSystemProvider.java:169)
	at java.nio.file.spi.FileSystemProvider$1.run(FileSystemProvider.java:166)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.nio.file.spi.FileSystemProvider.installedProviders(FileSystemProvider.java:166)
	at java.nio.file.FileSystems.newFileSystem(FileSystems.java:324)
	at com.github.marschall.memoryfilesystem.MemoryFileSystemBuilder.build(MemoryFileSystemBuilder.java:505)
	at com.github.stefanbirkner.fakesftpserver.rule.FakeSftpServerRule.createFileSystem(FakeSftpServerRule.java:421)
	at com.github.stefanbirkner.fakesftpserver.rule.FakeSftpServerRule.access$000(FakeSftpServerRule.java:158)
	at com.github.stefanbirkner.fakesftpserver.rule.FakeSftpServerRule$2.evaluate(FakeSftpServerRule.java:403)
	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.evaluateStatement(PowerMockJUnit47RunnerDelegateImpl.java:107)
	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:298)
	at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:87)
	at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:50)
	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:218)
	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:160)
	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:134)
	at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
	at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
	at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:136)
	at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:117)
	at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:57)
	at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
	at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Caused by: java.lang.ClassCastException: Cannot cast org.apache.sshd.common.util.security.bouncycastle.BouncyCastleSecurityProviderRegistrar to org.apache.sshd.common.util.security.SecurityProviderRegistrar
	at java.lang.Class.cast(Class.java:3369)
	at org.apache.sshd.common.util.threads.ThreadUtils.createDefaultInstance(ThreadUtils.java:114)
	at org.apache.sshd.common.util.threads.ThreadUtils.createDefaultInstance(ThreadUtils.java:121)
	at org.apache.sshd.common.util.threads.ThreadUtils.createDefaultInstance(ThreadUtils.java:107)
	at org.apache.sshd.common.util.security.SecurityUtils.register(SecurityUtils.java:397)
	at org.apache.sshd.common.util.security.SecurityUtils.isEDDSACurveSupported(SecurityUtils.java:529)
	at org.apache.sshd.common.signature.BuiltinSignatures$6.isSupported(BuiltinSignatures.java:103)
	at org.apache.sshd.common.NamedFactory.lambda$setUpBuiltinFactories$1(NamedFactory.java:63)
	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174)
	at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:566)
	at org.apache.sshd.common.NamedFactory.setUpBuiltinFactories(NamedFactory.java:64)
	at org.apache.sshd.common.BaseBuilder.setUpDefaultSignatures(BaseBuilder.java:339)
	at org.apache.sshd.common.BaseBuilder.fillWithDefaultValues(BaseBuilder.java:159)
	at org.apache.sshd.client.ClientBuilder.fillWithDefaultValues(ClientBuilder.java:103)
	at org.apache.sshd.client.ClientBuilder.fillWithDefaultValues(ClientBuilder.java:49)
	at org.apache.sshd.common.BaseBuilder.build(BaseBuilder.java:265)
	at org.apache.sshd.client.ClientBuilder.build(ClientBuilder.java:146)
	at org.apache.sshd.client.ClientBuilder.build(ClientBuilder.java:49)
	at org.apache.sshd.common.BaseBuilder.build(BaseBuilder.java:288)
	at org.apache.sshd.client.SshClient.setUpDefaultClient(SshClient.java:790)
	at org.apache.sshd.client.subsystem.sftp.SftpFileSystemProvider.<init>(SftpFileSystemProvider.java:157)
	at org.apache.sshd.client.subsystem.sftp.SftpFileSystemProvider.<init>(SftpFileSystemProvider.java:149)
	at org.apache.sshd.client.subsystem.sftp.SftpFileSystemProvider.<init>(SftpFileSystemProvider.java:135)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at java.lang.Class.newInstance(Class.java:442)
	at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:380)
	... 39 more

Known host file not configured, using user known host file: C:\Users\Sam/.ssh/known_hosts

Error while trying to do sftp.

Caused by: com.jcraft.jsch.JSchException: java.io.FileNotFoundException: C:\Users\Sam.ssh\known_hosts (The system cannot find the path specified)
at com.jcraft.jsch.KnownHosts.setKnownHosts(KnownHosts.java:57)
at com.jcraft.jsch.JSch.setKnownHosts(JSch.java:317)
at org.apache.camel.component.file.remote.SftpOperations.createSession(SftpOperations.java:286)
at org.apache.camel.component.file.remote.SftpOperations.connect(SftpOperations.java:115)
... 76 more

In actual sftp server it works fine , but on this mock , the connection could not get established

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