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From "Guillaume Nodet (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SSHD-370) SSHD-CORE component declaring dependencies for OSGi as optional
Date Sun, 16 Nov 2014 19:57:34 GMT

    [ https://issues.apache.org/jira/browse/SSHD-370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14214040#comment-14214040
] 

Guillaume Nodet commented on SSHD-370:
--------------------------------------

Optionality is quite relative to what you actually use.
SSHD does not need BouncyCastle to run, but if some classes do, such as the PEMGeneratorHostKeyProvider.
That's a problem with OSGi, where optional packages may or may not be resolved.
However, a workaround is to make your bundle that use SSHD import bouncy castle with a non
optional import, in which case, you minimise the chances sshd-core is not wired correctly.
 If you want to be 100% sure, you'd have to copy the PEMGeneratorHostKeyProvider into your
own bundle.

> SSHD-CORE component declaring dependencies for OSGi as optional
> ---------------------------------------------------------------
>
>                 Key: SSHD-370
>                 URL: https://issues.apache.org/jira/browse/SSHD-370
>             Project: MINA SSHD
>          Issue Type: Bug
>         Environment: OSGi container with sshd-core bundle
>            Reporter: Maros Marsalek
>            Priority: Minor
>
> The import-package instructions that are present in the MANIFEST for sshd-core are declared
as optional. Is this correct ? I use the class PEMGeneratorHostKeyProvider to generate/read
the PEM file. This class directly uses classes from bouncycastle bundle. In case the bouncycastle
bundle is not present or resolved I get following exception:
> 2014-11-11 11:10:41,423 | WARN  | o-group-thread-1 | Nio2Acceptor                   
 | 208 - org.apache.sshd.core - 0.12.0 | Caught exception while accepting incoming connection
> java.lang.NoClassDefFoundError: org/bouncycastle/openssl/PEMParser
>         at org.apache.sshd.server.keyprovider.PEMGeneratorHostKeyProvider.doReadKeyPair(PEMGeneratorHostKeyProvider.java:58)[208:org.apache.sshd.core:0.12.0]
>         at org.apache.sshd.server.keyprovider.AbstractGeneratorHostKeyProvider.readKeyPair(AbstractGeneratorHostKeyProvider.java:128)[208:org.apache.sshd.core:0.12.0]
>         at org.apache.sshd.server.keyprovider.AbstractGeneratorHostKeyProvider.loadKeys(AbstractGeneratorHostKeyProvider.java:108)[208:org.apache.sshd.core:0.12.0]
>         at org.apache.sshd.common.keyprovider.AbstractKeyPairProvider.getKeyTypes(AbstractKeyPairProvider.java:53)[208:org.apache.sshd.core:0.12.0]
>         at org.apache.sshd.server.session.ServerSession.sendKexInit(ServerSession.java:127)[208:org.apache.sshd.core:0.12.0]
>         at org.apache.sshd.server.session.ServerSession.<init>(ServerSession.java:60)[208:org.apache.sshd.core:0.12.0]
>         at org.apache.sshd.server.session.SessionFactory.doCreateSession(SessionFactory.java:43)
> I would expect the bundle to fail in the dependency resolution phase to prevent runtime
errors.
> I am on version 0.12 but I think this is present in the newer version as well.



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