title: Artifactory upgrade 6.16.2 -> 7.12.6 failing with Application could not be initialized: UNAVAILABLE: Network closed for unknown reason
body: <p>When upgrading Jfrog Artifactory from 6.16.2 -&gt; 7.12.6 on a Windows machine, following the official instructions (<a href="https://www.jfrog.com/confluence/display/JFROG/Upgrading+Artifactory#UpgradingArtifactory-WindowsUpgrade" rel="nofollow noreferrer">Link</a>) i am getting the following error in <code>artifactory-service.log</code></p>
  <pre><code>2021-01-23T12:22:20.896Z [jfrt ] [ERROR] [87face30ccb5d82c] [ctoryContextConfigListener:126] [art-init            ] - Application could not be initialized: UNAVAILABLE: Network closed for unknown reason
  java.lang.reflect.InvocationTargetException: null
      at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
      at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
      at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
      at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
      at org.artifactory.lifecycle.webapp.servlet.ArtifactoryContextConfigListener.configure(ArtifactoryContextConfigListener.java:265)
      at org.artifactory.lifecycle.webapp.servlet.ArtifactoryContextConfigListener$1.run(ArtifactoryContextConfigListener.java:122)
  Caused by: org.springframework.beans.factory.BeanInitializationException: Failed to initialize bean 'org.artifactory.security.access.AccessService'.; nested exception is io.grpc.StatusRuntimeException: UNAVAILABLE: Network closed for unknown reason
      at org.artifactory.spring.ArtifactoryApplicationContext.initReloadableBeans(ArtifactoryApplicationContext.java:302)
      at org.artifactory.spring.ArtifactoryApplicationContext.refresh(ArtifactoryApplicationContext.java:284)
      at org.artifactory.spring.ArtifactoryApplicationContext.&lt;init&gt;(ArtifactoryApplicationContext.java:174)
      ... 6 common frames omitted
  Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: Network closed for unknown reason
      at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:262)
      at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:243)
      at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:156)
      at com.jfrog.router.v1.registry.ServiceResourceGrpc$ServiceResourceBlockingStub.registerService(ServiceResourceGrpc.java:281)
      at org.jfrog.access.accessrouterclient.RouterClientImpl.registerService(RouterClientImpl.java:69)
      at org.jfrog.access.client.grpc.RouterGrpcClientImpl.registerService(RouterGrpcClientImpl.java:41)
      at org.jfrog.access.client.AccessClientBootstrap.&lt;init&gt;(AccessClientBootstrap.java:138)
      at org.artifactory.security.access.AccessServiceImpl.bootstrapAccessClient(AccessServiceImpl.java:1290)
      at org.artifactory.security.access.AccessServiceImpl.lambda$bootstrapAccessClient$23(AccessServiceImpl.java:1251)
      at io.vavr.control.Try.mapTry(Try.java:634)
      at io.vavr.control.Try.map(Try.java:585)
      at org.artifactory.security.access.AccessServiceImpl.bootstrapAccessClient(AccessServiceImpl.java:1251)
      at org.artifactory.security.access.AccessServiceImpl.initAccessService(AccessServiceImpl.java:421)
      at org.artifactory.security.access.AccessServiceImpl.initAccessClientIfNeeded(AccessServiceImpl.java:410)
      at org.artifactory.security.access.AccessServiceImpl.init(AccessServiceImpl.java:403)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.base/java.lang.reflect.Method.invoke(Method.java:566)
      at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
      at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:367)
      at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118)
      at org.artifactory.storage.fs.lock.aop.LockingAdvice.invoke(LockingAdvice.java:76)
      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
      at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
      at com.sun.proxy.$Proxy231.init(Unknown Source)
      at org.artifactory.spring.ArtifactoryApplicationContext.initReloadableBeans(ArtifactoryApplicationContext.java:300)
      ... 8 common frames omitted
  2021-01-23T12:22:22.687Z [jfrt ] [ERROR] [                ] [o.a.w.s.ArtifactoryFilter:213 ] [http-nio-8081-exec-5] - Artifactory failed to initialize: Context is null
  </code></pre>
  <p>http://localhost:8082/ui is reachable, and showing &quot;JFrog Platform will be available shortly&quot; With Router as healthy, and Access, Event and Metadata as Unhealthy Peer with message &quot;Service is healthy; there are missing services: jfrt,jffe&quot;</p>
  <p>http://localhost:8081/ shows the startup image for Artifactory for a while, and then throws a 500-error.</p>
  <p>The rest of the log looks ok ,and i can't find anything in other logs either.</p>