[JENKINS-70559] ClassNotFoundException using ssh git repository in blue ocean Pipeline editor

Type: Bug
Resolution: Fixed
Priority: Major
Component/s: blueocean-plugin
Labels:
- git
- pipeline
- plugin

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Trying to set up blue ocean pipeline with git repo in format `git@host:user/repo.git` throws exception and the flow gets stuck.

Could be related to ~~JENKINS-70379~~.

I am running latest jenkins version (2.389) through docker and latest blueocean plugin (1.27.1) installed through plugins.txt

There are actually two different exceptions.

Exception when I just paste in the repo address and javascript automatically triggers some background action.
Different exception (different class not found) when I click on the "Create pipeline" button

I used find to look for `jsch*` in file system, and it is not there when installing blueocean plugin. I tried adding jsch to plugin list manually (even though you are not supposed to) and it did not help either.

Exception 1:

2023-02-03 18:48:43.482+0000 [id=25]    WARNING    o.e.j.s.h.ContextHandler$Context#log: Error while serving http://localhost:8080/blue/rest/organizations/jenkins/user/publickey/
 java.lang.NoClassDefFoundError: com/jcraft/jsch/JSch
     at io.jenkins.blueocean.ssh.SSHKeyUtils.generateKey(SSHKeyUtils.java:49)

Exception 2:

2023-02-03 18:48:58.576+0000 [id=72] WARNING o.e.j.s.h.ContextHandler$Context#log: Error while serving http://localhost:8080/blue/rest/organizations/jenkins/pipelines/
java.lang.ClassNotFoundException: org.eclipse.jgit.transport.ssh.jsch.JschConfigSessionFactory
 at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:476)
 at jenkins.util.URLClassLoader2.findClass(URLClassLoader2.java:35)
 at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
 at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
Caused: java.lang.NoClassDefFoundError: org/eclipse/jgit/transport/ssh/jsch/JschConfigSessionFactory
 at java.base/java.lang.ClassLoader.defineClass1(Native Method)
 at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
 at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)
 at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:555)
 at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:458)
 at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:452)
 at java.base/java.security.AccessController.doPrivileged(Native Method)
 at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:451)
 at jenkins.util.URLClassLoader2.findClass(URLClassLoader2.java:35)
 at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
 at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
 at io.jenkins.blueocean.blueocean_git_pipeline.GitPipelineCreateRequest.validate(GitPipelineCreateRequest.java:64)

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image-2023-02-03-20-41-24-144.png
45 kB
2023-02-03 18:41

is caused by

JENKINS-69159 Use jgit.ssh.apache instead of jgit.sssh.jsch for the JGit ssh implementation in git client plugin

Closed

is duplicated by

JENKINS-70574 Open Blue Ocean to connect to the Git repository and report an error

Closed

links to

Blue ocean pull request 2397 - add Jsch to blue ocean git pipeline plugin

Janis created issue - 2023-02-03 18:58

Janis made changes - 2023-02-03 19:01

Description

Original: !image-2023-02-03-20-41-24-144.png|width=446,height=401!

Trying to set up blue ocean pipeline with git repo in format `git@host:user/repo.git` throws exception and the flow gets stuck.

Could be related to ~~JENKINS-70379~~.

I am running latest jenkins version (2.389) through docker and latest blueocean plugin (1.27.1) installed through plugins.txt

There are actually two different exceptions.
# Exception when I just paste in the repo address and javascript automatically triggers some background action.
# Different exception (different class not found) when I click on the "Create pipeline" button

I used find to look for `jsch*` in file system, and it is not there when installing blueocean plugin. I tried adding jsch to plugin list manually (even though you are not supposed to) and it did not help either.

Exception 1:

{code:java}
2023-02-03 18:48:43.482+0000 [id=25] WARNING o.e.j.s.h.ContextHandler$Context#log: Error while serving http://localhost:8080/blue/rest/organizations/jenkins/user/publickey/
java.lang.NoClassDefFoundError: com/jcraft/jsch/JSch
at io.jenkins.blueocean.ssh.SSHKeyUtils.generateKey(SSHKeyUtils.java:49)
{code}

Exception 2:

{code:java}
2023-02-03 18:48:58.576+0000 [id=72] WARNING o.e.j.s.h.ContextHandler$Context#log: Error while serving http://localhost:8080/blue/rest/organizations/jenkins/pipelines/ java.lang.ClassNotFoundException: org.eclipse.jgit.transport.ssh.jsch.JschConfigSessionFactory at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:476) at jenkins.util.URLClassLoader2.findClass(URLClassLoader2.java:35) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) Caused: java.lang.NoClassDefFoundError: org/eclipse/jgit/transport/ssh/jsch/JschConfigSessionFactory at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017) at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174) at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:555) at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:458) at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:452) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:451) at jenkins.util.URLClassLoader2.findClass(URLClassLoader2.java:35) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) at io.jenkins.blueocean.blueocean_git_pipeline.GitPipelineCreateRequest.validate(GitPipelineCreateRequest.java:64)
{code}

New: !image-2023-02-03-20-41-24-144.png|width=446,height=401!

Trying to set up blue ocean pipeline with git repo in format `git@host:user/repo.git` throws exception and the flow gets stuck.

Could be related to ~~JENKINS-70379~~.

I am running latest jenkins version (2.389) through docker and latest blueocean plugin (1.27.1) installed through plugins.txt

There are actually two different exceptions.
# Exception when I just paste in the repo address and javascript automatically triggers some background action.
# Different exception (different class not found) when I click on the "Create pipeline" button

I used find to look for `jsch*` in file system, and it is not there when installing blueocean plugin. I tried adding jsch to plugin list manually (even though you are not supposed to) and it did not help either.

Exception 1:

{code:java}
2023-02-03 18:48:43.482+0000 [id=25] WARNING o.e.j.s.h.ContextHandler$Context#log: Error while serving http://localhost:8080/blue/rest/organizations/jenkins/user/publickey/
java.lang.NoClassDefFoundError: com/jcraft/jsch/JSch
at io.jenkins.blueocean.ssh.SSHKeyUtils.generateKey(SSHKeyUtils.java:49)
{code}

Exception 2:
{code:java}
2023-02-03 18:48:58.576+0000 [id=72] WARNING o.e.j.s.h.ContextHandler$Context#log: Error while serving http://localhost:8080/blue/rest/organizations/jenkins/pipelines/
java.lang.ClassNotFoundException: org.eclipse.jgit.transport.ssh.jsch.JschConfigSessionFactory
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:476)
at jenkins.util.URLClassLoader2.findClass(URLClassLoader2.java:35)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
Caused: java.lang.NoClassDefFoundError: org/eclipse/jgit/transport/ssh/jsch/JschConfigSessionFactory
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)
at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:555)
at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:458)
at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:452)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:451)
at jenkins.util.URLClassLoader2.findClass(URLClassLoader2.java:35)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at io.jenkins.blueocean.blueocean_git_pipeline.GitPipelineCreateRequest.validate(GitPipelineCreateRequest.java:64){code}

Janis added a comment - 2023-02-03 19:10 - edited

For now as a workaround I manually download jsch-0.1.55.jar and add it to /var/jenkins_home/war/WEB-INF/lib/ which solves the issue.

Janis added a comment - 2023-02-03 19:10 - edited For now as a workaround I manually download jsch-0.1.55.jar and add it to /var/jenkins_home/war/WEB-INF/lib/ which solves the issue.

Mark Waite added a comment - 2023-02-03 20:51 - edited

Thanks for reporting the issue and thanks for investigating.

Another workaround is to install git client plugin 4.0.0 instead of git client plugin 4.1.0. The jsch implementation that the blue ocean plugin relies on from JGit has been deprecated by JGit. Their documentation says that they may remove it at any time. Git client plugin 4.1.0 switches the JGit implementation to use Apache Mina sshd rather than jsch. The blue ocean plugin will need to adapt to that change the next time it updates its dependencies from the plugin bill of materials.

Another workaround is to use HTTPS repository access instead of SSH repository access.

Mark Waite added a comment - 2023-02-03 20:51 - edited Thanks for reporting the issue and thanks for investigating. Another workaround is to install git client plugin 4.0.0 instead of git client plugin 4.1.0. The jsch implementation that the blue ocean plugin relies on from JGit has been deprecated by JGit. Their documentation says that they may remove it at any time. Git client plugin 4.1.0 switches the JGit implementation to use Apache Mina sshd rather than jsch. The blue ocean plugin will need to adapt to that change the next time it updates its dependencies from the plugin bill of materials. Another workaround is to use HTTPS repository access instead of SSH repository access.

Mark Waite made changes - 2023-02-03 20:52

Link

New: This issue is caused by ~~JENKINS-69159~~ [ ~~JENKINS-69159~~ ]

Mark Waite added a comment - 2023-02-03 20:52

Caused by the git client plugin switch from Jsch to Apache Mina sshd

Mark Waite added a comment - 2023-02-03 20:52 Caused by the git client plugin switch from Jsch to Apache Mina sshd

Mark Waite made changes - 2023-02-04 00:27

Summary

Original: ClassNotFoundException when using git repository in blue ocean

New: ClassNotFoundException when using git repository with ssh in blue ocean

Mark Waite made changes - 2023-02-04 00:28

Summary

Original: ClassNotFoundException when using git repository with ssh in blue ocean

New: ClassNotFoundException with git repository using ssh in blue ocean Pipeline editor

Mark Waite made changes - 2023-02-04 03:15

Summary

Original: ClassNotFoundException with git repository using ssh in blue ocean Pipeline editor

New: ClassNotFoundException using ssh git repository in blue ocean Pipeline editor

Mark Waite made changes - 2023-02-06 03:14

Remote Link

New: This issue links to "Blue ocean pull request 2397 - add Jsch to blue ocean git pipeline plugin (Web Link)" [ 28463 ]

Assignee:: Unassigned

Reporter:: Janis

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Created:: 2023-02-03 18:58

Updated:: 2023-02-08 13:03

Resolved:: 2023-02-08 13:03

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Collapse comment: Janis added a comment - 2023-02-03 19:10, Edited by Janis - 2023-02-03 19:10

Expand comment: Janis added a comment - 2023-02-03 19:10, Edited by Janis - 2023-02-03 19:10

Collapse comment: Mark Waite added a comment - 2023-02-03 20:51, Edited by Mark Waite - 2023-02-08 13:01

Expand comment: Mark Waite added a comment - 2023-02-03 20:51, Edited by Mark Waite - 2023-02-08 13:01

Collapse comment: Mark Waite added a comment - 2023-02-03 20:52

Expand comment: Mark Waite added a comment - 2023-02-03 20:52

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