Develop Reference

Unable to create directory path [/User/Desktop/db2/logs] for Neo4j store

I am trying to use a tool that, in two steps, analyzes code smells for android.
In the first step, the tool parses an apk and generates within a directory .db files that should then be converted to CSV files in the next step; however, whenever I try to run the second step, the console returns the following error:
java.io.IOException: Unable to create directory path [/User/Desktop/db2/logs] for Neo4j store.
I think it is a Neo4J configuration problem.
I am currently running the tool with the following Java configuration:
echo $JAVA_HOME
/home/User/openlogic-openjdk-11.0.15
update-alternatives --config java
* 0 /usr/lib/jvm/java-11-openjdk-amd64/bin/java 1111 auto mode
To be safe, I also started Neo4J, which returned the following output
sudo systemctl status neo4j.service
neo4j.service - Neo4j Graph Database
Loaded: loaded (/lib/systemd/system/neo4j.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2022-07-06 20:11:04 CEST; 16min ago
Main PID: 1040 (java)
Tasks: 57 (limit: 18901)
Memory: 705.4M
CPU: 16.639s
CGroup: /system.slice/neo4j.service
└─1040 /usr/bin/java -cp "/var/lib/neo4j/plugins:/etc/neo4j:/usr/share/neo4j/lib/*:/var/lib/neo4j/plugins/*" -XX:+UseG1GC -XX:-OmitStackTraceInFastThrow -XX:+AlwaysPreTouch -XX:+UnlockExper>.
How can I solve this?

You posted this error:
java.io.IOException: Unable to create directory path [/User/Desktop/db2/logs] for Neo4j store.
From that error, it looks like:
Neo4j was installed at "/User/Desktop/db2"
The permissions for that directory do not have "write" permission
I tried to reproduce this locally using Neo4j Community 4.4.5, following the steps below.
I do see an IOException related to "logs", but it's slightly different from what you posted. Perhaps we're on different versions of Neo4j.
Open terminal into install directory: cd neo4j
Verify "neo4j" is stopped: ./bin/neo4j stop
Rename existing "logs" directory: mv logs logs.save
Remove write permission for the Neo4j install: chmod u-w .
Start neo4j in console mode: ./bin/neo4j console
Observe errors in console output
2022-07-08 03:28:38.081+0000 INFO Starting...
ERROR StatusLogger Unable to create file [****************************]/neo4j/logs/debug.log
java.io.IOException: Could not create directory [****************************]/neo4j/logs
...
To fix things, try:
Get a terminal into your Neo4j directory:
cd /User/Desktop/db2
Set write permissions for the entire directory tree:
chmod u+w -R .
Start neo4j in console mode:
./bin/neo4j console
If this works and you're able to run neo4j fine, it points to an issue with user permissions when running neo4j as a system service.
The best steps from there depend on the system, your access, how comfortable you are making changes, probably other things. An easy, brute-force hammer would be to manually create each directory you discover (such as "/User/Desktop/db2/logs") and grant premissions to all users (chmod ugo+w .), then try re-running the service, see what errors pop up. Repeat that until you're able to run the service without errors.

Eclipse SVN Algorithm missing: No installed provider supports this key: javax.crypto.spec.SecretKeySpec

In Eclipse I sometimes get the following error message in the console when starting an SVN-update or any other SVN-action:
update [myLocalSVNpath] -r HEAD --force
svn: E175002: Algorithm missing:
svn: E175002: OPTIONS request failed on '[myRemoteSVNpath]/trunk'
svn: E175002: Algorithm missing:
svn: E175002: OPTIONS request failed on '[myRemoteSVNpath]/trunk'
Algorithm missing:
No installed provider supports this key: javax.crypto.spec.SecretKeySpec
class configured for Mac (provider: SunJCE) cannot be found.
com.sun.crypto.provider.HmacCore$HmacSHA384
Sometimes I can do some SVN operations (mostly update, compare, show history, commit) and then suddenly this message occurs and no SVN operations work any more. Restarting Eclipse or restarting the computer helps sometimes, not always.
I’m using a Windows 10 with Eclipse 2019-03 (4.11.0), Build id 20190314-1200 and „SVNKit Client Adapter“ in version 1.8.12.3. All other developers also use Windows 10 and a similar Eclipse version.
The workaround is to use Tortoise SVN in parallel so I can do SVN operations even if in Eclipse it doesn’t work.
Short question: How can I fix this?
Detailled question: Where does this missing class come from and where do I have to configure / install / add / exchange / remove the missing class? Or where (and how) can I install a provider that supports that asked key?

DOCKER_HOST environment variable on windows

I'm running Docker 1.12.0 on a Windows 10 machine. I'm developing a Java program, using Maven 3.3.9 as a dependency manager. I have a maven docker plugin (https://github.com/fabric8io/docker-maven-plugin), which gives the following error on clean install.
[ERROR] Failed to execute goal io.fabric8:docker-maven-plugin:0.15.16:build (docker-build-start) on project integration-test: Execution docker-build-start of goal io.fabric8:docker-maven-plugin:0.15.16:build failed: No <dockerHost> or <machine> given, no DOCKER_HOST environment variable, and no read/writable '/var/run/docker.sock' -> [Help 1]
When I run a clean install with the following configuration option in the POM file:
<dockerHost>tcp://0.0.0.0:2376</dockerHost>
the following result is shown.
[ERROR] Failed to execute goal io.fabric8:docker-maven-plugin:0.15.16:build (docker-build-start) on project integration-test: Cannot create docker access object: Cannot extract API version from server https://0.0.0.0:2376: Connect to 0.0.0.0:2376 [/0.0.0.0] failed: Connection refused: connect -> [Help 1]
My question: is there an IP address I can use to tell this maven plugin where it can reach the daemon? Normal docker commands work perfectly fine. The plugin works without any problems on OS X.

After nearly a day of fruitless Googling I found this solution by myself. Trivial, but might still help others.
You need to enable the checkbox 'Expose daemon on...' under Settings -> General

On Windows 10 with Docker for Windows, the Docker Engine API is available in these two locations:
npipe:////./pipe/docker_engine
http://localhost:2375
I recommend trying with the localhost one.
Details here: https://docs.docker.com/docker-for-windows/faqs/#/how-do-i-connect-to-the-remote-docker-engine-api

It seems the user which is running Maven goals doesn't have access to docker.sock . The error message is telling which options are there to resolve the problem.
No <dockerHost> or <machine> given, no DOCKER_HOST environment
variable, and no read/writable '/var/run/docker.sock'
Last option is the easiest one because it requires a file permission and it doesn't need to create any docker machine or set a DOCKER_HOST, On Linux you can change read/write permission of docker.sock with the following:
sudo chmod 776 /var/run/docker.sock
On windows go through this article : Microsoft article

I had the same issue when I tried to build a project in a custom GitLab CI/CD runner, with another than root user defined in a custom build image. I fixed by setting the read/write permission for users to the docker-socket.
chmod o+rw /var/run/docker.sock

If you are using Window and Maven in eclipse to build your java project
but continue seeing that error, then you have to perform these steps:
Step1:
You need to enable the checkbox 'Expose daemon on...' under Settings -> General
As mentioned by #Adriaan Koster
If step1 does not solve the issue,then
Step2: Run your eclipse in administration mode.
Now it should work without issues.

If someone just wants to skip fabric8 docker-maven-plugin execution that prevents build to succeed with error
No given, no DOCKER_HOST environment variable, no
read/writable '/var/run/docker.sock' or '//./pipe/docker_engine' and
no external provider like Docker machine configured
then this can be achieved with -Ddocker.skip=true according to https://dmp.fabric8.io/#global-configuration.

use docker-machine if you are using toolbox.
<machine>
<name>default</name>
<autoCreate>true</autoCreate>
<createOptions>
<driver>virtualbox</driver>
<virtualbox-cpu-count>2</virtualbox-cpu-count>
</createOptions>
</machine>

Unable to clone/push/pull a project on Git Bash

I previously worked on a project in Ruby on Rails using Vagrant as development environment. After I finished the project, I started to work in a project in Java, but when i try to clone the project into my workspace, i'm getting this error on Git Bash console:
git clone git#git.address.com:mari/project.git
Cloning into 'project'
/usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/1.9.1/net/http.rb:763:in 'initialize': No route to host - connect(2) (Errno::EHOSUNREACH)
from /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/1.9.1/net/http.rb:763:in 'open'
from /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/1.9.1/net/http.rb:763:in 'block in connect'
from /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/1.9.1/net/http.rb:55:in 'timeout'
from /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/1.9.1/net/http.rb:100:in 'timeout'
from /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/1.9.1/net/http.rb:763:in 'connect'
from /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/1.9.1/net/http.rb:756:in 'do_start'
from /usr/local/rvm/rubies/ruby-1.9.3-p429/lib/ruby/1.9.1/net/http.rb:745:in 'start'
from /opt/git/gitlab-shell/lib/gitlab_net.rb:56:in 'get'
from /opt/git/gitlab-shell/lib/gitlab_net.rb:17:in 'allowed?'
from /opt/git/gitlab-shell/lib/gitlab_net.rb:51:in 'validate_access'
from /opt/git/gitlab-shell/lib/gitlab_net.rb:21:in 'exec'
from /opt/git/gitlab-shell/lib/gitlab_net.rb:16:in '<main>'
fatal: Could not read from remote repository.
Please make sure you have the correct access rights and the repository exists.
NOTE: I've tried this solution (Change the URI (URL) for a remote Git repository) and didn't work. Any idea what might be happening?
EDIT: I'm using Windows, but the VM used on Vagrant is Linux.

Try adding the protocol to the beginning of the remote url:
ssh://git#git.address.com/mari/project.git
Also don't use a : to seperate path and uri, but use a / instead.
Of course, you can use another protocol as ssh.

try git remote url like this
http://<username>#git.address.com/<path>.git

Jenkins Build fails with SVNException

I am trying to run a jenkins build. The below is my configuration.
Jenkins Version : 1.445
Deployment : as a WAR
Java : 1.7 (Server 64 bit)
Tomcat Ver : 7.0.23
It gives the following error:
Started by user jenkins-admin
Updating https://myrepo.mycompany.com/svn/repos/myrepo
ERROR: Failed to update https://myrepo.mycompany.com/svn/repos/myrepo
org.tmatesoft.svn.core.SVNException: svn: OPTIONS /svn/repos/myrepo failed
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:298)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:283)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:271)
at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.exchangeCapabilities(DAVConnection.java:533)
at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.open(DAVConnection.java:98)
at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.openConnection(DAVRepository.java:1011)
at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.getRepositoryUUID(DAVRepository.java:148)
at org.tmatesoft.svn.core.wc.SVNBasicClient.createRepository(SVNBasicClient.java:342)
at org.tmatesoft.svn.core.wc.SVNBasicClient.createRepository(SVNBasicClient.java:330)
at org.tmatesoft.svn.core.wc.SVNUpdateClient.update(SVNUpdateClient.java:535)
at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:401)
at hudson.scm.subversion.UpdateUpdater$TaskImpl.perform(UpdateUpdater.java:135)
at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:136)
at hudson.scm.SubversionSCM$CheckOutTask.perform(SubversionSCM.java:787)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:768)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:752)
at hudson.FilePath.act(FilePath.java:783)
at hudson.FilePath.act(FilePath.java:765)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:742)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:684)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1195)
at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:571)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:460)
at hudson.model.Run.run(Run.java:1404)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:481)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:238)
Caused by: org.tmatesoft.svn.core.SVNErrorMessage: svn: OPTIONS /svn/repos/myrepo failed
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:200)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:146)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:89)
... 27 more
Caused by: org.tmatesoft.svn.core.SVNException: svn: OPTIONS request failed on '/svn/repos/myrepo'
svn: unknown host
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:64)
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:51)
The problem is it does NOT fail all the time. However, it fails 70-80% of the time.
The credentials and the URL for svn repo are correct.
UPDATE: I have tried every possibility now. The problem persists.
I tried with JDK 6 (both 32 and 64 bit). The problem does NOT go.
I am working on RHEL 5.6. Can anybody please help?

I noticed this line:
Caused by: org.tmatesoft.svn.core.SVNException: svn: OPTIONS request failed on '/svn/repos/myrepo'
svn: unknown host
Whenever I have a problem with Jenkins, I log into the Jenkins system as the user running Jenkins, go to the working directory inside Jenkins, and from a command line, try to do whatever Jenkins is attempting to do (like update my working directory). That usually will help you point out a particular error.
Try running an update a few times from the Jenkin's job's working directory and see if you get the same error. If you do, it could point out a network issue (unknown host).
If you can run updates from the working directory on your Jenkins server in your job's working directory, then the problem may lie with SVNKit itself. What version of Subversion and SVNKit are you using?
Try deleting the working directory and see if a clean checkout helps.

I noticed this error after upgrading my "Jenkins Subversion Plugin" from v1.42 to v1.44.
To Fix:
Please check the version of "Jenkins Subversion plugin" if it v1.44, downgrade to lower version.
Seems like we have some issues with the new Subversion Plugin.

The node running the build can not resolve the host name. Possibly a fully qualified name is required: rather than mysvnbox something like mysvnbox.mydomain.com; Or possibly the node is blocked by a firewall. The fact that it works sometimes would seem to indicate at least one node has visibility or can use an abbreviated domain specification. Good luck.

I have faced the same issue in Jenkins. It was kept on failing during checking out the code. I tried to increase Jenkins work space but it was prompted for the crowd authentication. It was failed to update and I tried clear the authentication date from subversion and restarted my build server (You can log out with your credentials and log-in). This will work.