Sure thing David,

phil@Phils-MacBook-Pro nifi % mvn -X -T C2.0 clean install -Pinclude-grpc       
                              
Apache Maven 3.8.1 (05c21c65bdfed0f71a2f2ada8b84da59348c4c5d)
Maven home: /usr/local/Cellar/maven/3.8.1/libexec
Java version: 11.0.12, vendor: Oracle Corporation, runtime: 
/Library/Java/JavaVirtualMachines/jdk-11.0.12.jdk/Contents/Home
Default locale: en_AU, platform encoding: UTF-8
OS name: "mac os x", version: "11.5", arch: "x86_64", family: "mac"
[DEBUG] Created new class realm maven.api
[DEBUG] Importing foreign packages into class realm maven.api
[DEBUG]   Imported: javax.annotation.* < plexus.core
[DEBUG]   Imported: javax.annotation.security.* < plexus.core
[DEBUG]   Imported: javax.enterprise.inject.* < plexus.core
[DEBUG]   Imported: javax.enterprise.util.* < plexus.core
[DEBUG]   Imported: javax.inject.* < plexus.core
[DEBUG]   Imported: org.apache.maven.* < plexus.core
[DEBUG]   Imported: org.apache.maven.artifact < plexus.core
[DEBUG]   Imported: org.apache.maven.classrealm < plexus.core
[DEBUG]   Imported: org.apache.maven.cli < plexus.core
[DEBUG]   Imported: org.apache.maven.configuration < plexus.core
[DEBUG]   Imported: org.apache.maven.exception < plexus.core
[DEBUG]   Imported: org.apache.maven.execution < plexus.core
[DEBUG]   Imported: org.apache.maven.execution.scope < plexus.core
[DEBUG]   Imported: org.apache.maven.lifecycle < plexus.core
[DEBUG]   Imported: org.apache.maven.model < plexus.core
[DEBUG]   Imported: org.apache.maven.monitor < plexus.core
[DEBUG]   Imported: org.apache.maven.plugin < plexus.core
[DEBUG]   Imported: org.apache.maven.profiles < plexus.core
[DEBUG]   Imported: org.apache.maven.project < plexus.core
[DEBUG]   Imported: org.apache.maven.reporting < plexus.core
[DEBUG]   Imported: org.apache.maven.repository < plexus.core
[DEBUG]   Imported: org.apache.maven.rtinfo < plexus.core
[DEBUG]   Imported: org.apache.maven.settings < plexus.core
[DEBUG]   Imported: org.apache.maven.toolchain < plexus.core
[DEBUG]   Imported: org.apache.maven.usability < plexus.core
[DEBUG]   Imported: org.apache.maven.wagon.* < plexus.core
[DEBUG]   Imported: org.apache.maven.wagon.authentication < plexus.core
[DEBUG]   Imported: org.apache.maven.wagon.authorization < plexus.core
[DEBUG]   Imported: org.apache.maven.wagon.events < plexus.core
[DEBUG]   Imported: org.apache.maven.wagon.observers < plexus.core
[DEBUG]   Imported: org.apache.maven.wagon.proxy < plexus.core
[DEBUG]   Imported: org.apache.maven.wagon.repository < plexus.core
[DEBUG]   Imported: org.apache.maven.wagon.resource < plexus.core
[DEBUG]   Imported: org.codehaus.classworlds < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.* < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.classworlds < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.component < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.configuration < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.container < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.context < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.lifecycle < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.logging < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.personality < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.util.xml.Xpp3Dom < plexus.core
[DEBUG]   Imported: org.codehaus.plexus.util.xml.pull.XmlPullParser < 
plexus.core
[DEBUG]   Imported: org.codehaus.plexus.util.xml.pull.XmlPullParserException < 
plexus.core
[DEBUG]   Imported: org.codehaus.plexus.util.xml.pull.XmlSerializer < 
plexus.core
[DEBUG]   Imported: org.eclipse.aether.* < plexus.core
[DEBUG]   Imported: org.eclipse.aether.artifact < plexus.core
[DEBUG]   Imported: org.eclipse.aether.collection < plexus.core
[DEBUG]   Imported: org.eclipse.aether.deployment < plexus.core
[DEBUG]   Imported: org.eclipse.aether.graph < plexus.core
[DEBUG]   Imported: org.eclipse.aether.impl < plexus.core
[DEBUG]   Imported: org.eclipse.aether.installation < plexus.core
[DEBUG]   Imported: org.eclipse.aether.internal.impl < plexus.core
[DEBUG]   Imported: org.eclipse.aether.metadata < plexus.core
[DEBUG]   Imported: org.eclipse.aether.repository < plexus.core
[DEBUG]   Imported: org.eclipse.aether.resolution < plexus.core
[DEBUG]   Imported: org.eclipse.aether.spi < plexus.core
[DEBUG]   Imported: org.eclipse.aether.transfer < plexus.core
[DEBUG]   Imported: org.eclipse.aether.version < plexus.core
[DEBUG]   Imported: org.fusesource.jansi.* < plexus.core
[DEBUG]   Imported: org.slf4j.* < plexus.core
[DEBUG]   Imported: org.slf4j.event.* < plexus.core
[DEBUG]   Imported: org.slf4j.helpers.* < plexus.core
[DEBUG]   Imported: org.slf4j.spi.* < plexus.core
[DEBUG] Populating class realm maven.api
[INFO] Error stacktraces are turned on.
[DEBUG] Message scheme: color
[DEBUG] Message styles: debug info warning error success failure strong mojo 
project
[DEBUG] Reading global settings from 
/usr/local/Cellar/maven/3.8.1/libexec/conf/settings.xml
[DEBUG] Reading user settings from /Users/phil/.m2/settings.xml
[DEBUG] Reading global toolchains from 
/usr/local/Cellar/maven/3.8.1/libexec/conf/toolchains.xml
[DEBUG] Reading user toolchains from /Users/phil/.m2/toolchains.xml
[DEBUG] Using local repository at /Users/phil/.m2/repository
[DEBUG] Using manager EnhancedLocalRepositoryManager with priority 10.0 for 
/Users/phil/.m2/repository
[INFO] Scanning for projects...
[DEBUG] Using transporter WagonTransporter with priority -1.0 for 
https://repo1.maven.org/maven2
[DEBUG] Using connector BasicRepositoryConnector with priority 0.0 for 
https://repo1.maven.org/maven2
Downloading from central: 
https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom
[DEBUG] Writing tracking file 
/Users/phil/.m2/repository/org/apache/apache/25/apache-25.pom.lastUpdated
[DEBUG] Using transporter WagonTransporter with priority -1.0 for 
https://repository.apache.org/content/repositories/releases
[DEBUG] Using connector BasicRepositoryConnector with priority 0.0 for 
https://repository.apache.org/content/repositories/releases
Downloading from apache-repo: 
https://repository.apache.org/content/repositories/releases/org/apache/apache/25/apache-25.pom
[DEBUG] Writing tracking file 
/Users/phil/.m2/repository/org/apache/apache/25/apache-25.pom.lastUpdated
[DEBUG] Using transporter WagonTransporter with priority -1.0 for 
https://build.shibboleth.net/nexus/content/repositories/releases/
[DEBUG] Using connector BasicRepositoryConnector with priority 0.0 for 
https://build.shibboleth.net/nexus/content/repositories/releases/
Downloading from Shibboleth: 
https://build.shibboleth.net/nexus/content/repositories/releases/org/apache/apache/25/apache-25.pom
[DEBUG] Writing tracking file 
/Users/phil/.m2/repository/org/apache/apache/25/apache-25.pom.lastUpdated
[ERROR] [ERROR] Some problems were encountered while processing the POMs:
[FATAL] Non-resolvable parent POM for org.apache.nifi:nifi:1.17.0-SNAPSHOT: 
Could not transfer artifact org.apache:apache:pom:25 from/to central 
(https://repo1.maven.org/maven2): transfer failed for 
https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom and 
'parent.relativePath' points at no local POM @ line 14, column 13
 @ 
[ERROR] The build could not read 1 project -> [Help 1]
org.apache.maven.project.ProjectBuildingException: Some problems were 
encountered while processing the POMs:
[FATAL] Non-resolvable parent POM for org.apache.nifi:nifi:1.17.0-SNAPSHOT: 
Could not transfer artifact org.apache:apache:pom:25 from/to central 
(https://repo1.maven.org/maven2): transfer failed for 
https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom and 
'parent.relativePath' points at no local POM @ line 14, column 13

    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:397)
    at org.apache.maven.graph.DefaultGraphBuilder.collectProjects 
(DefaultGraphBuilder.java:414)
    at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor 
(DefaultGraphBuilder.java:405)
    at org.apache.maven.graph.DefaultGraphBuilder.build 
(DefaultGraphBuilder.java:82)
    at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced 
(Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch 
(Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode 
(Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main 
(Launcher.java:347)
[ERROR]   
[ERROR]   The project org.apache.nifi:nifi:1.17.0-SNAPSHOT 
(/Users/phil/nifi/pom.xml) has 1 error
[ERROR]     Non-resolvable parent POM for org.apache.nifi:nifi:1.17.0-SNAPSHOT: 
Could not transfer artifact org.apache:apache:pom:25 from/to central 
(https://repo1.maven.org/maven2): transfer failed for 
https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom and 
'parent.relativePath' points at no local POM @ line 14, column 13: Network is 
unreachable (connect failed) -> [Help 2]
org.apache.maven.model.resolution.UnresolvableModelException: Could not 
transfer artifact org.apache:apache:pom:25 from/to central 
(https://repo1.maven.org/maven2): transfer failed for 
https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom
    at org.apache.maven.project.ProjectModelResolver.resolveModel 
(ProjectModelResolver.java:196)
    at org.apache.maven.project.ProjectModelResolver.resolveModel 
(ProjectModelResolver.java:242)
    at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally 
(DefaultModelBuilder.java:1070)
    at org.apache.maven.model.building.DefaultModelBuilder.readParent 
(DefaultModelBuilder.java:846)
    at org.apache.maven.model.building.DefaultModelBuilder.build 
(DefaultModelBuilder.java:337)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:448)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:414)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:377)
    at org.apache.maven.graph.DefaultGraphBuilder.collectProjects 
(DefaultGraphBuilder.java:414)
    at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor 
(DefaultGraphBuilder.java:405)
    at org.apache.maven.graph.DefaultGraphBuilder.build 
(DefaultGraphBuilder.java:82)
    at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced 
(Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch 
(Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode 
(Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main 
(Launcher.java:347)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not 
transfer artifact org.apache:apache:pom:25 from/to central 
(https://repo1.maven.org/maven2): transfer failed for 
https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve 
(DefaultArtifactResolver.java:424)
    at 
org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts 
(DefaultArtifactResolver.java:229)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact 
(DefaultArtifactResolver.java:207)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact 
(DefaultRepositorySystem.java:262)
    at org.apache.maven.project.ProjectModelResolver.resolveModel 
(ProjectModelResolver.java:192)
    at org.apache.maven.project.ProjectModelResolver.resolveModel 
(ProjectModelResolver.java:242)
    at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally 
(DefaultModelBuilder.java:1070)
    at org.apache.maven.model.building.DefaultModelBuilder.readParent 
(DefaultModelBuilder.java:846)
    at org.apache.maven.model.building.DefaultModelBuilder.build 
(DefaultModelBuilder.java:337)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:448)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:414)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:377)
    at org.apache.maven.graph.DefaultGraphBuilder.collectProjects 
(DefaultGraphBuilder.java:414)
    at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor 
(DefaultGraphBuilder.java:405)
    at org.apache.maven.graph.DefaultGraphBuilder.build 
(DefaultGraphBuilder.java:82)
    at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced 
(Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch 
(Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode 
(Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main 
(Launcher.java:347)
Caused by: org.eclipse.aether.transfer.ArtifactTransferException: Could not 
transfer artifact org.apache:apache:pom:25 from/to central 
(https://repo1.maven.org/maven2): transfer failed for 
https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom
    at 
org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed 
(ArtifactTransportListener.java:52)
    at 
org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run 
(BasicRepositoryConnector.java:369)
    at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run 
(RunnableErrorForwarder.java:75)
    at 
org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute
 (BasicRepositoryConnector.java:628)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get 
(BasicRepositoryConnector.java:262)
    at 
org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads 
(DefaultArtifactResolver.java:513)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve 
(DefaultArtifactResolver.java:401)
    at 
org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts 
(DefaultArtifactResolver.java:229)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact 
(DefaultArtifactResolver.java:207)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact 
(DefaultRepositorySystem.java:262)
    at org.apache.maven.project.ProjectModelResolver.resolveModel 
(ProjectModelResolver.java:192)
    at org.apache.maven.project.ProjectModelResolver.resolveModel 
(ProjectModelResolver.java:242)
    at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally 
(DefaultModelBuilder.java:1070)
    at org.apache.maven.model.building.DefaultModelBuilder.readParent 
(DefaultModelBuilder.java:846)
    at org.apache.maven.model.building.DefaultModelBuilder.build 
(DefaultModelBuilder.java:337)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:448)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:414)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:377)
    at org.apache.maven.graph.DefaultGraphBuilder.collectProjects 
(DefaultGraphBuilder.java:414)
    at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor 
(DefaultGraphBuilder.java:405)
    at org.apache.maven.graph.DefaultGraphBuilder.build 
(DefaultGraphBuilder.java:82)
    at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced 
(Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch 
(Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode 
(Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main 
(Launcher.java:347)
Caused by: org.apache.maven.wagon.TransferFailedException: transfer failed for 
https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom
    at 
org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData
 (AbstractHttpClientWagon.java:1250)
    at 
org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData
 (AbstractHttpClientWagon.java:1140)
    at org.apache.maven.wagon.StreamWagon.getInputStream (StreamWagon.java:126)
    at org.apache.maven.wagon.StreamWagon.getIfNewer (StreamWagon.java:88)
    at org.apache.maven.wagon.StreamWagon.get (StreamWagon.java:61)
    at org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run 
(WagonTransporter.java:546)
    at org.eclipse.aether.transport.wagon.WagonTransporter.execute 
(WagonTransporter.java:430)
    at org.eclipse.aether.transport.wagon.WagonTransporter.get 
(WagonTransporter.java:407)
    at 
org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask
 (BasicRepositoryConnector.java:457)
    at 
org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run 
(BasicRepositoryConnector.java:364)
    at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run 
(RunnableErrorForwarder.java:75)
    at 
org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute
 (BasicRepositoryConnector.java:628)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get 
(BasicRepositoryConnector.java:262)
    at 
org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads 
(DefaultArtifactResolver.java:513)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve 
(DefaultArtifactResolver.java:401)
    at 
org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts 
(DefaultArtifactResolver.java:229)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact 
(DefaultArtifactResolver.java:207)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact 
(DefaultRepositorySystem.java:262)
    at org.apache.maven.project.ProjectModelResolver.resolveModel 
(ProjectModelResolver.java:192)
    at org.apache.maven.project.ProjectModelResolver.resolveModel 
(ProjectModelResolver.java:242)
    at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally 
(DefaultModelBuilder.java:1070)
    at org.apache.maven.model.building.DefaultModelBuilder.readParent 
(DefaultModelBuilder.java:846)
    at org.apache.maven.model.building.DefaultModelBuilder.build 
(DefaultModelBuilder.java:337)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:448)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:414)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:377)
    at org.apache.maven.graph.DefaultGraphBuilder.collectProjects 
(DefaultGraphBuilder.java:414)
    at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor 
(DefaultGraphBuilder.java:405)
    at org.apache.maven.graph.DefaultGraphBuilder.build 
(DefaultGraphBuilder.java:82)
    at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced 
(Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch 
(Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode 
(Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main 
(Launcher.java:347)
Caused by: java.net.SocketException: Network is unreachable (connect failed)
    at java.net.PlainSocketImpl.socketConnect (Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect 
(AbstractPlainSocketImpl.java:399)
    at java.net.AbstractPlainSocketImpl.connectToAddress 
(AbstractPlainSocketImpl.java:242)
    at java.net.AbstractPlainSocketImpl.connect 
(AbstractPlainSocketImpl.java:224)
    at java.net.SocksSocketImpl.connect (SocksSocketImpl.java:392)
    at java.net.Socket.connect (Socket.java:608)
    at 
org.apache.maven.wagon.providers.http.httpclient.conn.ssl.SSLConnectionSocketFactory.connectSocket
 (SSLConnectionSocketFactory.java:368)
    at 
org.apache.maven.wagon.providers.http.httpclient.impl.conn.DefaultHttpClientConnectionOperator.connect
 (DefaultHttpClientConnectionOperator.java:142)
    at 
org.apache.maven.wagon.providers.http.httpclient.impl.conn.PoolingHttpClientConnectionManager.connect
 (PoolingHttpClientConnectionManager.java:376)
    at 
org.apache.maven.wagon.providers.http.httpclient.impl.execchain.MainClientExec.establishRoute
 (MainClientExec.java:393)
    at 
org.apache.maven.wagon.providers.http.httpclient.impl.execchain.MainClientExec.execute
 (MainClientExec.java:236)
    at 
org.apache.maven.wagon.providers.http.httpclient.impl.execchain.ProtocolExec.execute
 (ProtocolExec.java:186)
    at 
org.apache.maven.wagon.providers.http.httpclient.impl.execchain.RetryExec.execute
 (RetryExec.java:89)
    at 
org.apache.maven.wagon.providers.http.httpclient.impl.execchain.RedirectExec.execute
 (RedirectExec.java:110)
    at 
org.apache.maven.wagon.providers.http.httpclient.impl.client.InternalHttpClient.doExecute
 (InternalHttpClient.java:185)
    at 
org.apache.maven.wagon.providers.http.httpclient.impl.client.CloseableHttpClient.execute
 (CloseableHttpClient.java:83)
    at 
org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.execute
 (AbstractHttpClientWagon.java:1005)
    at 
org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData
 (AbstractHttpClientWagon.java:1162)
    at 
org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData
 (AbstractHttpClientWagon.java:1140)
    at org.apache.maven.wagon.StreamWagon.getInputStream (StreamWagon.java:126)
    at org.apache.maven.wagon.StreamWagon.getIfNewer (StreamWagon.java:88)
    at org.apache.maven.wagon.StreamWagon.get (StreamWagon.java:61)
    at org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run 
(WagonTransporter.java:546)
    at org.eclipse.aether.transport.wagon.WagonTransporter.execute 
(WagonTransporter.java:430)
    at org.eclipse.aether.transport.wagon.WagonTransporter.get 
(WagonTransporter.java:407)
    at 
org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask
 (BasicRepositoryConnector.java:457)
    at 
org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run 
(BasicRepositoryConnector.java:364)
    at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run 
(RunnableErrorForwarder.java:75)
    at 
org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute
 (BasicRepositoryConnector.java:628)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get 
(BasicRepositoryConnector.java:262)
    at 
org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads 
(DefaultArtifactResolver.java:513)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve 
(DefaultArtifactResolver.java:401)
    at 
org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts 
(DefaultArtifactResolver.java:229)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact 
(DefaultArtifactResolver.java:207)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact 
(DefaultRepositorySystem.java:262)
    at org.apache.maven.project.ProjectModelResolver.resolveModel 
(ProjectModelResolver.java:192)
    at org.apache.maven.project.ProjectModelResolver.resolveModel 
(ProjectModelResolver.java:242)
    at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally 
(DefaultModelBuilder.java:1070)
    at org.apache.maven.model.building.DefaultModelBuilder.readParent 
(DefaultModelBuilder.java:846)
    at org.apache.maven.model.building.DefaultModelBuilder.build 
(DefaultModelBuilder.java:337)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:448)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:414)
    at org.apache.maven.project.DefaultProjectBuilder.build 
(DefaultProjectBuilder.java:377)
    at org.apache.maven.graph.DefaultGraphBuilder.collectProjects 
(DefaultGraphBuilder.java:414)
    at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor 
(DefaultGraphBuilder.java:405)
    at org.apache.maven.graph.DefaultGraphBuilder.build 
(DefaultGraphBuilder.java:82)
    at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke 
(NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke 
(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced 
(Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch 
(Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode 
(Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main 
(Launcher.java:347)
[ERROR] 
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please 
read the following articles:
[ERROR] [Help 1] 
http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
[ERROR] [Help 2] 
http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException


> On 7 Apr 2022, at 11:27 am, David Handermann <[email protected]> 
> wrote:
> 
> Phil,
> 
> Can you provide the version of Maven you are using? Running Maven with the
> -X argument for debug will generate a lot of logging information, but it
> might point to the POM resolution problem.
> 
> Regards,
> David Handermann
> 
> On Wed, Apr 6, 2022 at 8:13 PM Phil H <[email protected]> wrote:
> 
>> I reverted back to AZUL JDK 11, and then in turn to Oracle JDK 11, and all
>> had the same issue.
>> 
>> So I’m assuming it’s either a OSX thing, or some sort of weird maven issue?
>> 
>>> On 7 Apr 2022, at 10:02 am, Mike Thomsen <[email protected]> wrote:
>>> 
>>>> However it’s not a network issue because…
>>> 
>>> Could be something funky with how Java 17's TLS APIs are working on your
>> setup.
>>> 
>>> Java 8 and Java 11 are your best bets for now anyway. Java 17 support
>>> is still in the early stages and isn't a preferred JDK/JRE.
>>> 
>>> On Wed, Apr 6, 2022 at 7:00 PM Phil H <[email protected]> wrote:
>>>> 
>>>> So I upgraded to the Azul JDK 17.  New repo, following the same
>> instructions as before.
>>>> 
>>>>    phil@Phils-MacBook-Pro nifi % mvn -T C2.0 clean install
>> -Pinclude-grpc
>>>>    [INFO] Scanning for projects...
>>>>    Downloading from central:
>> https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom
>>>>    Downloading from apache-repo:
>> https://repository.apache.org/content/repositories/releases/org/apache/apache/25/apache-25.pom
>>>>    Downloading from Shibboleth:
>> https://build.shibboleth.net/nexus/content/repositories/releases/org/apache/apache/25/apache-25.pom
>>>>    [ERROR] [ERROR] Some problems were encountered while processing the
>> POMs:
>>>>    [FATAL] Non-resolvable parent POM for
>> org.apache.nifi:nifi:1.17.0-SNAPSHOT: Could not transfer artifact
>> org.apache:apache:pom:25 from/to central (https://repo1.maven.org/maven2):
>> transfer failed for
>> https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom and
>> 'parent.relativePath' points at no local POM @ line 14, column 13
>>>> @
>>>>    [ERROR] The build could not read 1 project -> [Help 1]
>>>>    [ERROR]
>>>>    [ERROR]   The project org.apache.nifi:nifi:1.17.0-SNAPSHOT
>> (/Users/phil/nifi/pom.xml) has 1 error
>>>>    [ERROR]     Non-resolvable parent POM for
>> org.apache.nifi:nifi:1.17.0-SNAPSHOT: Could not transfer artifact
>> org.apache:apache:pom:25 from/to central (https://repo1.maven.org/maven2):
>> transfer failed for
>> https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom and
>> 'parent.relativePath' points at no local POM @ line 14, column 13: Network
>> is unreachable -> [Help 2]
>>>>    [ERROR]
>>>>    [ERROR] To see the full stack trace of the errors, re-run Maven
>> with the -e switch.
>>>>    [ERROR] Re-run Maven using the -X switch to enable full debug
>> logging.
>>>>    [ERROR]
>>>>    [ERROR] For more information about the errors and possible
>> solutions, please read the following articles:
>>>>    [ERROR] [Help 1]
>> http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
>>>>    [ERROR] [Help 2]
>> http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException
>>>> 
>>>> However it’s not a network issue because…
>>>> 
>>>>    phil@Phils-MacBook-Pro nifi % curl
>> https://repo1.maven.org/maven2/org/apache/apache/25/apache-25.pom
>>>>    <?xml version="1.0" encoding="UTF-8"?>
>>>> 
>>>>    <!--
>>>>    Licensed to the Apache Software Foundation (ASF) under one
>>>>    or more contributor license agreements.  See the NOTICE file
>>>> …
>>>> 
>>>> So frustrating .. I just wanna fix SplitContent!
>> 
>> 

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