Dear Support/Community,
I’m analyzing an angular monorepo (typescript) during a jenkins pipeline. I noticed the issue (warning) mentioned below and I can’t recall having this one before. It might also relate to the upgrade to Angular 9/Typescript 3.8.3, but the exception trace concludes otherwise. I cannot exclude the possibility that the non closable server connection comes from some typescript/SonarJS scan itself.
It must be said that the analyses as well as the upload of the results to our sonar server instance (on-premise) of the project (all modules) are successfull. It only seems that the sonar scanner has problems closing the connection to the server.
Versions in use:
SonarQube 8.2
Scanner: 4.2.0.1873
Jenkins SonarQube Scanner: 2.11
Jenkins Sonar Quality Gates Plugin: 1.3.1
Java: 11.0.5 AdoptOpenJDK
OS: Windows Server 2016
If there is a similar issue, I apologize for not finding it. Maybe you can point me into the right direction 
Steps to reproduce: None that I know of unfortunately besides the setup
Call of Sonar Scanner:
sonar-scanner -Dsonar.branch.name=“my branch Name” -Dproject.settings=/libs/ui-layout/sonar-project.properties -Dsonar.javascript.node.maxspace=2048
Error stack
09:50:36 INFO: Analysis report generated in 142ms, dir size=159 KB
09:50:36 INFO: Analysis report compressed in 77ms, zip size=42 KB
09:50:37 INFO: Analysis report uploaded in 33ms
09:50:37 INFO: ANALYSIS SUCCESSFUL, you can browse https://sonarqube.*********
09:50:37 INFO: Note that you will be able to access the updated dashboard once the server has processed the submitted analysis report
09:50:37 INFO: More about the report processing at https://sonarqube.*****/api/ce/task?id=AXUmFujKYP1pakYm-MOh
09:50:39 WARN: Failed to close server
09:50:39 java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:53079
09:50:39 at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:249)
09:50:39 at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:167)
09:50:39 at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:257)
09:50:39 at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:135)
09:50:39 at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:114)
09:50:39 at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)
09:50:39 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
09:50:39 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
09:50:39 at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:94)
09:50:39 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
09:50:39 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
09:50:39 at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
09:50:39 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
09:50:39 at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:125)
09:50:39 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
09:50:39 at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
09:50:39 at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:264)
09:50:39 at okhttp3.RealCall.execute(RealCall.java:93)
09:50:39 at org.sonar.plugins.javascript.eslint.EslintBridgeServerImpl.request(EslintBridgeServerImpl.java:195)
09:50:39 at org.sonar.plugins.javascript.eslint.EslintBridgeServerImpl.clean(EslintBridgeServerImpl.java:283)
09:50:39 at org.sonar.plugins.javascript.eslint.EslintBridgeServerImpl.stop(EslintBridgeServerImpl.java:308)
09:50:39 at org.sonar.core.platform.StartableCloseableSafeLifecyleStrategy.stop(StartableCloseableSafeLifecyleStrategy.java:52)
09:50:39 at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.stop(AbstractInjectionFactory.java:88)
09:50:39 at org.picocontainer.behaviors.AbstractBehavior.stop(AbstractBehavior.java:179)
09:50:39 at org.picocontainer.behaviors.Stored$RealComponentLifecycle.stop(Stored.java:141)
09:50:39 at org.picocontainer.behaviors.Stored.stop(Stored.java:118)
09:50:39 at org.picocontainer.DefaultPicoContainer.stopAdapters(DefaultPicoContainer.java:1048)
09:50:39 at org.picocontainer.DefaultPicoContainer.stop(DefaultPicoContainer.java:803)
09:50:39 at org.sonar.core.platform.ComponentContainer.stopComponents(ComponentContainer.java:165)
09:50:39 at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:124)
09:50:39 at org.sonar.scanner.bootstrap.GlobalContainer.doAfterStart(GlobalContainer.java:141)
09:50:39 at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:136)
09:50:39 at org.sonar.core.platform.ComponentContainer.execute(ComponentContainer.java:122)
09:50:39 at org.sonar.batch.bootstrapper.Batch.doExecute(Batch.java:72)
09:50:39 at org.sonar.batch.bootstrapper.Batch.execute(Batch.java:66)
09:50:39 at org.sonarsource.scanner.api.internal.batch.BatchIsolatedLauncher.execute(BatchIsolatedLauncher.java:46)
09:50:39 at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
09:50:39 at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
09:50:39 at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
09:50:39 at java.base/java.lang.reflect.Method.invoke(Method.java:566)
09:50:39 at org.sonarsource.scanner.api.internal.IsolatedLauncherProxy.invoke(IsolatedLauncherProxy.java:60)
09:50:39 at com.sun.proxy.$Proxy0.execute(Unknown Source)
09:50:39 at org.sonarsource.scanner.api.EmbeddedScanner.doExecute(EmbeddedScanner.java:189)
09:50:39 at org.sonarsource.scanner.api.EmbeddedScanner.execute(EmbeddedScanner.java:138)
09:50:39 at org.sonarsource.scanner.cli.Main.execute(Main.java:112)
09:50:39 at org.sonarsource.scanner.cli.Main.execute(Main.java:75)
09:50:39 at org.sonarsource.scanner.cli.Main.main(Main.java:61)
09:50:39 Caused by: java.net.ConnectException: Connection refused: connect
09:50:39 at java.base/java.net.PlainSocketImpl.waitForConnect(Native Method)
09:50:39 at java.base/java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:107)
09:50:39 at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399)
09:50:39 at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242)
09:50:39 at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224)
09:50:39 at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)
09:50:39 at java.base/java.net.Socket.connect(Socket.java:609)
09:50:39 at okhttp3.internal.platform.Platform.connectSocket(Platform.java:130)
09:50:39 at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:247)
09:50:39 ... 46 common frames omitted
09:50:39
09:50:51 INFO: Analysis total time: 1:10.647 s
09:50:51 INFO: ------------------------------------------------------------------------
09:50:51 INFO: EXECUTION SUCCESS
09:50:51 INFO: ------------------------------------------------------------------------
09:50:51 INFO: Total time: 1:11.530s
09:50:51 INFO: Final Memory: 23M/94M
09:50:51 INFO: ------------------------------------------------------------------------
[Pipeline] }
09:50:51 Deleting 1 temporary files
[Pipeline] // nodejs
[Pipeline] }
[Pipeline] // withSonarQubeEnv
[Pipeline] waitForQualityGate
09:50:54 Checking status of SonarQube task 'AXUmFujKYP1pakYm-MOh' on server 'SonarQube'
09:50:54 SonarQube task 'AXUmFujKYP1pakYm-MOh' status is 'SUCCESS'
09:50:54 SonarQube task 'AXUmFujKYP1pakYm-MOh' completed. Quality gate is 'OK'
09:50:54 QualityGate.status returned from SonarQube for ui-layout: OK
09:50:54 currentBuild.result was set to: SUCCESS
Do you know of this issue? Do you have any suggestions why and how to solve this? Am I even be able to influence the behaviour somehow?
I’m planning to upgrade all the components (except Java) in the next weeks. If this solves this issue I will update my post.
Best regards
Benjamin