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Full Discussion: host key issue via java
Top Forums UNIX for Dummies Questions & Answers host key issue via java Post 302439447 by prashant.ladha on Thursday 22nd of July 2010 02:48:11 PM
Old 07-22-2010
host key issue via java
Hi,
I am encountering below mentioned exception when I execute my Java program that is supposed to SFTP the file from one server over to another.

Can you please tell me some pointers to resolve this issue?


Exception
Code:
HostName- 10.1.1.1 ; userName- bmsftp 
log4j:WARN No appenders could be found for logger (com.sshtools.j2ssh.transport.publickey.SshKeyPairFactory). 
log4j:WARN Please initialize the log4j system properly. 
The host 10.1.1.1  is currently unknown to the system 
The host key fingerprint is: 1024: a d3 9d 50 c9 97 6e f3 54 ef 8e ce 26 cd 54 78 
Do you want to allow this host key? [Yes|No|Always]: java.lang.NullPointerException 
        at com.sshtools.j2ssh.transport.ConsoleKnownHostsKeyVerification.getResponse(Unknown Source) 
        at com.sshtools.j2ssh.transport.ConsoleKnownHostsKeyVerification.onUnknownHost(Unknown Source) 
        at com.sshtools.j2ssh.transport.AbstractKnownHostsKeyVerification.validateHost(Unknown Source) 
        at com.sshtools.j2ssh.transport.AbstractKnownHostsKeyVerification.verifyHost(Unknown Source) 
        at com.sshtools.j2ssh.transport.TransportProtocolClient.verifyHostKey(Unknown Source) 
        at com.sshtools.j2ssh.transport.TransportProtocolClient.performKeyExchange(Unknown Source) 
        at com.sshtools.j2ssh.transport.TransportProtocolCommon.beginKeyExchange(Unknown Source) 
        at com.sshtools.j2ssh.transport.TransportProtocolCommon.onMsgKexInit(Unknown Source) 
        at com.sshtools.j2ssh.transport.TransportProtocolCommon.startBinaryPacketProtocol(Unknown Source) 
        at com.sshtools.j2ssh.transport.TransportProtocolCommon.run(Unknown Source) 
        at java.lang.Thread.run(Thread.java:534)

 

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LEARN ABOUT DEBIAN

ppi::statement::unknown

PPI::Statement::Unknown(3pm)				User Contributed Perl Documentation			      PPI::Statement::Unknown(3pm)

NAME

       PPI::Statement::Unknown - An unknown or transient statement

INHERITANCE

	 PPI::Statement::Unknown
	 isa PPI::Statement
	     isa PPI::Node
		 isa PPI::Element

DESCRIPTION

       The "PPI::Statement::Unknown" class is used primarily during the lexing process to hold elements that are known to be statement, but for
       which the exact "type" of statement is as yet unknown, and requires further tokens in order to resolve the correct type.

       They should not exist in a fully parse valid document, and if any exists they indicate either a problem in Document, or possibly (by
       allowing it to get through unresolved) a bug in PPI::Lexer.

METHODS

       "PPI::Statement::Unknown" has no additional methods beyond the default ones provided by PPI::Statement, PPI::Node and PPI::Element.

SUPPORT

       See the support section in the main module.

AUTHOR

       Adam Kennedy <adamk@cpan.org>

COPYRIGHT

       Copyright 2001 - 2011 Adam Kennedy.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       The full text of the license can be found in the LICENSE file included with this module.

perl v5.10.1							    2011-02-26					      PPI::Statement::Unknown(3pm)
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