devvthedev opened a new issue, #532:
URL: https://github.com/apache/mina-sshd/issues/532
Hello,
I'm using the following JGit and Apache MINA dependencies in my project:
```
implementation "org.eclipse.jgit:org.eclipse.jgit:6.10.0.202406032230-r"
implementation
"org.eclipse.jgit:org.eclipse.jgit.ssh.apache:6.10.0.202406032230-r"
implementation "org.apache.sshd:sshd-git:2.13.1"
```
I've created a default `org.apache.sshd.client.SshClient` with:
`SshClient sshClient = SshClient.setUpDefaultClient();`
and then set an instance of the GitSshdSessionFactory on JGits
SshSessionFactory:
`SshSessionFactory.setInstance(new GitSshdSessionFactory(sshClient));`
<br>
By default the sshClient is reading the SSH keys I have stored in the
`~/.ssh` folder where the `config` file has the following configuration:
```
Host github.com
IdentityFile ~/.ssh/my-ssh-key
```
I am using a **_passphrase-less_** private SSH key.
<br>
<br>
The question I have is around JGits Git push command call when talking back
to the remote repository.
For example,
1. Given I have cloned a repository on my machine with SSH in a terminal:
`git clone g...@github.com:devvthedev/my-project.git`
2. Made some changes to the repo
3. Opened the repo using JGit with `Git.open(...)` and get a `Git` object
back
4. Staged the changes I made and committed them:
```
git.add()
.addFilepattern(".")
.call();
```
```
git.commit()
.setCommitter(new PersonIdent("me", "m...@example.com"))
.setMessage("message")
.call();
```
6. When I try to push those changes with JGit:
```
git.push()
.call();
```
I get the following error:
```
Caused by: org.eclipse.jgit.errors.TransportException: Unable to connect
at
org.apache.sshd.git.transport.GitSshdSessionFactory.getSession(GitSshdSessionFactory.java:134)
at
org.eclipse.jgit.transport.SshTransport.getSession(SshTransport.java:107)
at
org.eclipse.jgit.transport.TransportGitSsh$SshPushConnection.<init>(TransportGitSsh.java:356)
at
org.eclipse.jgit.transport.TransportGitSsh.openPush(TransportGitSsh.java:157)
at
org.eclipse.jgit.transport.PushProcess.execute(PushProcess.java:140)
at org.eclipse.jgit.transport.Transport.push(Transport.java:1555)
at org.eclipse.jgit.api.PushCommand.call(PushCommand.java:158)
... 2 more
Caused by: java.lang.NullPointerException: Cannot invoke
"org.eclipse.jgit.transport.CredentialsProvider.isInteractive()" because
"credentialsProvider" is null
at
org.apache.sshd.git.transport.GitSshdSession.<init>(GitSshdSession.java:55)
at
org.apache.sshd.git.transport.GitSshdSessionFactory$1.<init>(GitSshdSessionFactory.java:90)
at
org.apache.sshd.git.transport.GitSshdSessionFactory.getSession(GitSshdSessionFactory.java:90)
... 8 more
```
<br>
If I provide a CredentialsProvider with the `git` user and no password:
```
git.push()
.setCredentialsProvider(new UsernamePasswordCredentialsProvider("git",
""))
.call();
```
It works!
So my question is - why is a CredentialsProvider required given I have
configured a `SshSessionFactory` instance?
I've also raised this to JGit maintainers
[here](https://github.com/eclipse-jgit/jgit/issues/72)
Thank you
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