Algorithm negotiation fail, Through Firezilla i am able to connect client server , but through job this is failing .

[Anonymous]

Can any one help me on this issue . Network team replyed that there is no issue from there side because we are abule to connect client through Firezilla. we have passed same value's in contex parameter's . this issue in production , job running from long but sudenlly it' failing , unable to connect . 

### Job STARTED  at 2017/08/16 08:45:11 (jobId=20170804_105703_oQQkJ, jobExecutionId=20170816084511_5YEXq) ###

Exception in component tFTPConnection_1

com.jcraft.jsch.JSchException: Algorithm negotiation fail

                at com.jcraft.jsch.Session.receive_kexinit(Session.java:529)

                at com.jcraft.jsch.Session.connect(Session.java:291)

                at com.jcraft.jsch.Session.connect(Session.java:154)

[Aukema]

Some thought:

Is it normal FTP or some FTPS / SFTP?

Does it do anything or do you experience the "long" as a timeout? with other words does it connect and later come with this error or is it directly on connecting?

Can you add a screenshot?

[Anonymous]

Thanks for reply :

please find more details.

It is SFTP

20170816134502_vsdBT__task_10_Task__DE_UQ_US_Message_Combined_v2.txt

[Anonymous]

screen shot 1: code and context

screen shot 2: Manuvally I am able to connect through Firezilla

Doc1.docx

[Aukema]

Could it be that the Java Crypotgraphic Extension is needed to run properly?

I believe the FTP component is using the jsch library and according to their site (http://www.jcraft.com/jsch/😞  

JSch is in pure Java, but it depends on JavaTM Cryptography Extension (JCE). JSch has been known to work with:

[Anonymous]

No.. I don't think so , because we have latest verstion java(jdk) installed last week . and this job's running from long .

[Anonymous]

Hi As per this I have update to latest version 1.6 to 1.8 . but now i am facing different issue .  

### Job STARTED  at 2017/08/23 13:45:43 (jobId=20170823_083037_hLOGE, jobExecutionId=20170823134543_0Wspu) ###

Registry key 'Software\JavaSoft\Java Runtime Environment\CurrentVersion'

has value '1.8', but '1.6' is required.

Error: could not find java.dll

Error: could not find Java SE Runtime Environment.

 any help ? 

[nmodi]

Was there any resolution to this? I am getting same issue while trying to connect to SFTP

com.jcraft.jsch.JSchException:Algorithm negotiation fail

[sr11]

Hi, Is there any resolution to this issue? I am getting the same error... Any inputs, please?

[FATAL]:  - tFTPConnection_2 Algorithm negotiation fail
Exception in component tFTPConnection_2
com.jcraft.jsch.JSchException: Algorithm negotiation fail
at com.jcraft.jsch.Session.receive_kexinit(Session.java:583)
at com.jcraft.jsch.Session.connect(Session.java:320)
at com.jcraft.jsch.Session.connect(Session.java:183)

Thank you

[Anonymous]

Hi

I had the same issue using TOS 6.1 to connect to a FTP with implicit TLS.

I had the sftp support checked.

Following this thread, I downloaded jsch-0.1.55, copied it into D:\Talend\TOS_DI-20151214_1327-V6.1.1\workspace\.Java\lib and renamed it jsch-0.1.51.jar. After restzrting the studio, same issue.

I then copied it to D:\Talend\TOS_DI-20151214_1327-V6.1.1\configuration\.m2\repository\org\talend\libraries\jsch-0.1.51\6.0.0-SNAPSHOT to replace the existing jsch-0.1.51-6.0.0-SNAPSHOT.jar

It now works after restarting the studio

Hope it helps !