Develop Reference

Unable to Launch the Neo4j Console App After Upgrade to macOS Big Sur

Yesterday, I upgraded my iMac to macOS Big Sur. When I attempted to launch the Neo4j Console app in Terminal, it returned a series of errors. I was running 3.5.20 of the Community Server.
I thought I could resolve these errors by installing the latest version of the Community Server. I downloaded and installed version 3.5.24. When I attempted to launch the 3.5.24 database, it returned the following errors, which are similar to those version 3.5.20 produced.
Starting Neo4j.
2020-11-17 12:36:06.242+0000 WARN dbms.active_database is deprecated.
2020-11-17 12:36:06.275+0000 INFO ======== Neo4j 3.5.24 ========
2020-11-17 12:36:06.299+0000 INFO Starting...
2020-11-17 12:36:15.159+0000 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#39993624' was successfully initialized, but failed to start. Please see the attached cause exception "The jurisdiction policy files are not signed by the expected signer! (Policy files are specific per major JDK release.Ensure the correct version is installed.)". Starting Neo4j failed: Component
'org.neo4j.server.database.LifecycleManagingDatabase#39993624' was successfully initialized, but failed to start. Please see the attached cause exception "The jurisdiction policy files are not signed by the expected signer! (Policy files are specific per major JDK release.Ensure the correct version is installed.)".
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#39993624' was successfully initialized, but failed to start. Please see the attached cause exception "The jurisdiction policy files are not signed by the expected signer! (Policy files are specific per major JDK release.Ensure the correct version is installed.)".
at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:45)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:187)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:124)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:91)
at org.neo4j.server.CommunityEntryPoint.main(CommunityEntryPoint.java:32)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase#39993624' was successfully initialized, but failed to start. Please see the attached cause exception "The jurisdiction policy files are not signed by the expected signer! (Policy files are specific per major JDK release.Ensure the correct version is installed.)".
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:473)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:180)
... 3 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory, /Users/ciro/Applications/neo4j-community-3.5.24/data/databases
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:232)
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:148)
at org.neo4j.server.database.CommunityGraphFactory.newGraphDatabase(CommunityGraphFactory.java:41)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:90)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 5 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.bolt.BoltServer#e156110' was successfully initialized, but failed to start. Please see the attached cause exception "The jurisdiction policy files are not signed by the expected signer! (Policy files are specific per major JDK release.Ensure the correct version is installed.)".
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:473)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:227)
... 9 more
Caused by: java.lang.ExceptionInInitializerError
at javax.crypto.Cipher.getInstance(Cipher.java:518)
at sun.security.ssl.JsseJce.getCipher(JsseJce.java:189)
at sun.security.ssl.SSLCipher.isTransformationAvailable(SSLCipher.java:483)
at sun.security.ssl.SSLCipher.<init>(SSLCipher.java:472)
at sun.security.ssl.SSLCipher.<clinit>(SSLCipher.java:81)
at sun.security.ssl.CipherSuite.<clinit>(CipherSuite.java:67)
at sun.security.ssl.SSLContextImpl.getApplicableSupportedCipherSuites(SSLContextImpl.java:345)
at sun.security.ssl.SSLContextImpl.access$100(SSLContextImpl.java:46)
at sun.security.ssl.SSLContextImpl$AbstractTLSContext.<clinit>(SSLContextImpl.java:577)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at java.security.Provider$Service.getImplClass(Provider.java:1728)
at java.security.Provider$Service.newInstance(Provider.java:1686)
at sun.security.jca.GetInstance.getInstance(GetInstance.java:236)
at sun.security.jca.GetInstance.getInstance(GetInstance.java:164)
at javax.net.ssl.SSLContext.getInstance(SSLContext.java:156)
at io.netty.handler.ssl.JdkSslContext.<clinit>(JdkSslContext.java:73)
at io.netty.handler.ssl.SslContext.newServerContextInternal(SslContext.java:465)
at io.netty.handler.ssl.SslContextBuilder.build(SslContextBuilder.java:571)
at org.neo4j.ssl.SslPolicy.nettyServerContext(SslPolicy.java:81)
at org.neo4j.bolt.BoltServer.createSslContext(BoltServer.java:202)
at org.neo4j.bolt.BoltServer.createProtocolInitializer(BoltServer.java:170)
at org.neo4j.bolt.BoltServer.lambda$createConnectors$0(BoltServer.java:149)
at java.util.stream.Collectors.lambda$toMap$58(Collectors.java:1321)
at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169)
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1384)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at org.neo4j.bolt.BoltServer.createConnectors(BoltServer.java:149)
at org.neo4j.bolt.BoltServer.start(BoltServer.java:124)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 11 more
Caused by: java.lang.SecurityException: Can not initialize cryptographic mechanism
at javax.crypto.JceSecurity.<clinit>(JceSecurity.java:93)
... 45 more
Caused by: java.lang.SecurityException: The jurisdiction policy files are not signed by the expected signer! (Policy files are specific per major JDK release.Ensure the correct version is installed.)
at javax.crypto.JarVerifier.verifyPolicySigned(JarVerifier.java:336)
at javax.crypto.JceSecurity.loadPolicies(JceSecurity.java:378)
at javax.crypto.JceSecurity.setupJurisdictionPolicies(JceSecurity.java:323)
at javax.crypto.JceSecurity.access$000(JceSecurity.java:50)
at javax.crypto.JceSecurity$1.run(JceSecurity.java:85)
at java.security.AccessController.doPrivileged(Native Method)
at javax.crypto.JceSecurity.<clinit>(JceSecurity.java:82)
... 45 more
The database was running just fine before the upgrade. Has anyone experienced this error? Any ideas on how to get the Community Server database working again?
Thanks in advance for your help.
Regards,
Ciro

java.io.IOException: Cannot run program "git": error=11, Resource temporarily unavailable

Using GOCD pipeline. We have two nodes, one of which clones code fine, this older node does not. We are seeing Cannot run program "git": error=11, Resource temporarily unavailable in the logs. Is there some configuration I am able to check?
Logs:
020-08-25 17:39:18,629 [loopThread] ERROR thoughtworks.go.work.DefaultGoPublisher:135 - Error while executing [git clone --branch=20.08_OMS_15.09_Endpoint git#github.comcast.com:TPP-Provisioning/PortOutGui.git /app/go-agent1/pipelines/PATGUI-build]
Make sure this command can execute manually.
java.lang.RuntimeException: Error while executing [git clone --branch=20.08_OMS_15.09_Endpoint git#example.com:TPP-Provisioning/PortOutGui.git /app/go-agent1/pipelines/PATGUI-build]
Make sure this command can execute manually.
at com.thoughtworks.go.util.ExceptionUtils.bomb(ExceptionUtils.java:36)
at com.thoughtworks.go.config.materials.git.GitMaterial.updateTo(GitMaterial.java:159)
at com.thoughtworks.go.domain.MaterialRevision.updateTo(MaterialRevision.java:151)
at com.thoughtworks.go.domain.materials.AbstractMaterialAgent.prepare(AbstractMaterialAgent.java:41)
at com.thoughtworks.go.remote.work.BuildWork.prepareJob(BuildWork.java:193)
at com.thoughtworks.go.remote.work.BuildWork.build(BuildWork.java:141)
at com.thoughtworks.go.remote.work.BuildWork.doWork(BuildWork.java:96)
at com.thoughtworks.go.agent.JobRunner.run(JobRunner.java:60)
at com.thoughtworks.go.agent.AgentHTTPClientController.retrieveWork(AgentHTTPClientController.java:123)
at com.thoughtworks.go.agent.AgentHTTPClientController.work(AgentHTTPClientController.java:99)
at com.thoughtworks.go.agent.AgentController.loop(AgentController.java:78)
at sun.reflect.GeneratedMethodAccessor12.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:273)
at org.springframework.scheduling.support.MethodInvokingRunnable.run(MethodInvokingRunnable.java:65)
at org.springframework.scheduling.timer.DelegatingTimerTask.run(DelegatingTimerTask.java:70)
at java.util.TimerThread.mainLoop(Timer.java:555)
at java.util.TimerThread.run(Timer.java:505)
Caused by: com.thoughtworks.go.util.command.CommandLineException: Error while executing [git clone --branch=20.08_OMS_15.09_Endpoint git#example.com:TPP-Provisioning/PortOutGui.git /app/go-agent1/pipelines/PATGUI-build]
Make sure this command can execute manually.
at com.thoughtworks.go.util.ProcessManager.startProcess(ProcessManager.java:112)
at com.thoughtworks.go.util.ProcessManager.createProcess(ProcessManager.java:64)
at com.thoughtworks.go.util.command.CommandLine.createProcess(CommandLine.java:361)
at com.thoughtworks.go.util.command.CommandLine.execute(CommandLine.java:354)
at com.thoughtworks.go.util.command.CommandLine.run(CommandLine.java:513)
at com.thoughtworks.go.domain.materials.SCMCommand.run(SCMCommand.java:34)
at com.thoughtworks.go.domain.materials.git.GitCommand.clone(GitCommand.java:82)
at com.thoughtworks.go.config.materials.git.GitMaterial.git(GitMaterial.java:247)
at com.thoughtworks.go.config.materials.git.GitMaterial.updateTo(GitMaterial.java:153)
... 17 more
Caused by: java.io.IOException: Cannot run program "git": error=11, Resource temporarily unavailable
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
at com.thoughtworks.go.util.ProcessManager.startProcess(ProcessManager.java:105)
... 25 more
Caused by: java.io.IOException: error=11, Resource temporarily unavailable
at java.lang.UNIXProcess.forkAndExec(Native Method)
at java.lang.UNIXProcess.<init>(UNIXProcess.java:248)
at java.lang.ProcessImpl.start(ProcessImpl.java:134)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
GO CD Build:
20:21:26.207 [go] Job Started: 2020-08-25 20:21:26 UTC
20:21:26.207 [go] Start to prepare PATGUI-build/131/Execute_Script/1/build_job on exmaple-po-b4p.sys.comcast.net [/app/go-agent3]
20:21:26.212 [go] Start to update materials.
20:21:26.212 [go] Start updating files at revision 1c9e6a31946f62af1285305f338178d2a8fd13f2 from git#github.comcast.com:TPP-Provisioning/PortOutGui.git
20:21:26.214 Error while executing [git clone --branch=20.08_OMS_15.09_Endpoint git#example.com:TPP-Provisioning/PortOutGui.git /app/go-agent3/pipelines/PATGUI-build]
Make sure this command can execute manually.
20:21:26.231 [go] Job completed PATGUI-build/131/Execute_Script/1/build_job on exmaple-po-b4p.sys.comcast.net [/app/go-agent3]

This issue was resolved by restarting the go agent. A new issue arouse but this issue was resolved by the following.
Login into GoCD UI.
Click on "Agents"
Select the agent which is required to be restarted
click on Disable button
refresh the page.
You will see that agent disabled and at the last in the list
Copy the "Agent Name". This is the host of agent. Login into this host with Cada credentials.
Run command : sudo su -
Now execute : sudo /etc/init.d/go-agent1 restart (Note : The last digit after agent will change as per Agents/"sandbox" value in the GoCD UI)
Above command will restart the agent
Now go back to the GoCD UI, select the disabled agent and click on Enable.
Refresh the page, agent should be back in idle state.Restarting GoCD agents:

Tomcat not running for a JAR file

I am using Postman alongside a JAR file that runs a REST service that holds some contacts. However when I try to run the JAR file by using: java -jar ContactListRESTService.jar in Powershell, I am seeing a bunch of errors that Apache Tomcat could not run. Postman also doesn't recognize the localhost.
Caused by: java.lang.IllegalStateException: Tomcat connector in failed state
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:159)
Caused by: java.lang.IllegalStateException: Tomcat connector in failed state
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletCntainer.java:159) ~[spring-boot 1.3.7.RELEASE.jar!/:1.3.7.RELEASE]
I have tried uninstalling and reinstalling JAVA SE per some guidance from a mentor with no results.
If anyone can point me in the right direction please.

Caused by: java.net.MalformedURLException: no protocol using PublicClient samples for ADAL

I wanted to play around with Microsoft Azure's Active Directory Library for Java. After I pulled the code from github and importing to Eclipse as a maven project, building and executing the PublicClient.java sample file, I get the following exception:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" java.util.concurrent.ExecutionException: java.net.MalformedURLException: no protocol:
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:188)
at src.main.java.PublicClient.getAccessTokenFromUserCredentials(PublicClient.java:36)
at src.main.java.PublicClient.main(PublicClient.java:23)
Caused by: java.net.MalformedURLException: no protocol:
at java.net.URL.<init>(URL.java:585)
at java.net.URL.<init>(URL.java:482)
at java.net.URL.<init>(URL.java:431)
at com.microsoft.aad.adal4j.HttpHelper.openConnection(HttpHelper.java:110)
at com.microsoft.aad.adal4j.HttpHelper.executeHttpGet(HttpHelper.java:43)
at com.microsoft.aad.adal4j.HttpHelper.executeHttpGet(HttpHelper.java:38)
at com.microsoft.aad.adal4j.MexParser.getWsTrustEndpointFromMexEndpoint(MexParser.java:87)
at com.microsoft.aad.adal4j.AuthenticationContext.processPasswordGrant(AuthenticationContext.java:852)
at com.microsoft.aad.adal4j.AuthenticationContext.access$0(AuthenticationContext.java:839)
at com.microsoft.aad.adal4j.AuthenticationContext$1.call(AuthenticationContext.java:129)
at com.microsoft.aad.adal4j.AuthenticationContext$1.call(AuthenticationContext.java:1)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
I have correctly specified my client ID, username and password. Can someone please help me resolve this issue?

I reproduce your issue. The problem is that the sample PublicClient.java is a separate Maven project with Microsoft AAD Library for Java.
To resolve this issue, you need to import the sample project alone to Eclipse as the follows.
Then you run the maven install to install all depencies for the sample project and execute it. It will works without exception.

Thanks to Peter Pan - MSFT, I was able to get this issue resolved. The problem was I was using a Microsoft account and not a service account. After I setup a service account, I was able to get the sample working.
In order to setup a service account, open the azure portal, go to all services, open subscriptions, select your subscription, scroll down and click on "Roles" and click on "Reader" (or any other category which you like but make sure it has proper access priviliges) and click on "+" to add a new user which should not be a microsoft user.

Jenkins hudson.util.IOException2: remote file operation failed

I'm using CentOS 5 and Jenkins 1.430. When I try to build, I get an error:
hudson.util.IOException2: remote file operation failed: /home/build/jenkins/workspace/tests at hudson.remoting.Channel#6c89db9a:build-test
at hudson.FilePath.act(FilePath.java:754)
at hudson.FilePath.act(FilePath.java:740)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:705)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:654)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1193)
at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:566)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:454)
at hudson.model.Run.run(Run.java:1376)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:230)
Caused by: java.io.IOException: Remote call on build-test failed
at hudson.remoting.Channel.call(Channel.java:690)
at hudson.FilePath.act(FilePath.java:747)
... 10 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class hudson.model.Hudson
at hudson.scm.SubversionWorkspaceSelector.syncWorkspaceFormatFromMaster(SubversionWorkspaceSelector.java:85)
at hudson.scm.SubversionSCM.createSvnClientManager(SubversionSCM.java:782)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:725)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:712)
at hudson.FilePath$FileCallableWrapper.call(FilePath.java:1995)
at hudson.remoting.UserRequest.perform(UserRequest.java:118)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:287)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
Email was triggered for: Failure
Sending email for trigger: Failure
An attempt to send an e-mail to empty list of recipients, ignored.
Finished: FAILURE
This thread seems to say it's something wrong with Master/Slave:
https://groups.google.com/forum/?fromgroups=#!topic/jenkinsci-issues/MaMqjK3iW8Y
But it doesn't really offer a solution. The Jenkin slave says it's connected and it's reflected on the Jenkins project page.

Well apparently disabling the slave and rebooting it worked. bleh

If you don't want to reboot then simply kill these processes on the slave
$ ps -ef | grep java
1006 11948 11930 0 Jul17 ? 00:00:00 bash -c cd "/mnt/jenkins" && java -jar slave.jar
1006 11949 11948 0 Jul17 ? 00:02:55 java -jar slave.jar
Then launch the slave agent again

Got a quite similar error, and fixed it by reverting the "publish over ssh" plug-in from 1.14 to 1.13
Our Jenkins server is run on Debian 8.2 (Jessie), and our slaves under Ubuntu 14.04 (trusty)

Terminated the slave and launched it again. Working perfectly.