Error on nexus starts

since few days, we’ve got an issue when starting nexus service

we’ve got a lot of issue trying to access to
Central Repository: org/sonatype/nexus/assemblies

first error like this look like that :

2024-07-17 09:07:03,506+0200 WARN  [FelixStartLevel]  *SYSTEM org.ops4j.pax.url.mvn.internal.AetherBasedResolver - Error resolving artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01: [Could not transfer artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01 from/to central (https://repo1.maven.org/maven2/): transfer failed for https://repo1.maven.org/maven2/org/sonatype/nexus/assemblies/nexus-startup-feature/3.41.0-01/nexus-startup-feature-3.41.0-01-features.xml]
java.io.IOException: Error resolving artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01: [Could not transfer artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01 from/to central (https://repo1.maven.org/maven2/): transfer failed for https://repo1.maven.org/maven2/org/sonatype/nexus/assemblies/nexus-startup-feature/3.41.0-01/nexus-startup-feature-3.41.0-01-features.xml]
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.configureIOException(AetherBasedResolver.java:803)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:774)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:657)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:598)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:565)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:555)
        at org.ops4j.pax.url.mvn.internal.Connection.getInputStream(Connection.java:123)
        at java.net.URL.openStream(URL.java:1093)
        at org.apache.karaf.features.internal.service.RepositoryImpl.load(RepositoryImpl.java:114)
        at org.apache.karaf.features.internal.service.RepositoryImpl.<init>(RepositoryImpl.java:51)
        at org.apache.karaf.features.internal.service.RepositoryCacheImpl.create(RepositoryCacheImpl.java:51)
        at org.apache.karaf.features.internal.service.FeaturesServiceImpl.addRepository(FeaturesServiceImpl.java:386)
        at org.apache.karaf.features.internal.service.FeaturesServiceImpl.addRepository(FeaturesServiceImpl.java:381)
        at org.apache.karaf.features.internal.service.BootFeaturesInstaller.addRepositories(BootFeaturesInstaller.java:118)
        at org.apache.karaf.features.internal.service.BootFeaturesInstaller.installBootFeatures(BootFeaturesInstaller.java:87)
        at org.apache.karaf.features.internal.service.BootFeaturesInstaller.start(BootFeaturesInstaller.java:81)
        at org.apache.karaf.features.internal.osgi.Activator.doStart(Activator.java:214)
        at org.apache.karaf.util.tracker.BaseActivator.start(BaseActivator.java:92)
        at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:698)
        at org.apache.felix.framework.Felix.activateBundle(Felix.java:2402)
        at org.apache.felix.framework.Felix.startBundle(Felix.java:2308)
        at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1539)
        at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)
        at java.lang.Thread.run(Thread.java:750)
        Suppressed: shaded.org.eclipse.aether.transfer.ArtifactTransferException: Could not transfer artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01 from/to central (https://repo1.maven.org/maven2/): transfer failed for https://repo1.maven.org/maven2/org/sonatype/nexus/assemblies/nexus-startup-feature/3.41.0-01/nexus-startup-feature-3.41.0-01-features.xml
                at shaded.org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:52)
                at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:368)
                at shaded.org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:75)
                at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:642)
                at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:262)
                at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:489)
                at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:390)
                at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:215)
                at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:192)
                at shaded.org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:247)
                at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:767)
                ... 22 common frames omitted
        Caused by: shaded.org.apache.maven.wagon.TransferFailedException: transfer failed for https://repo1.maven.org/maven2/org/sonatype/nexus/assemblies/nexus-startup-feature/3.41.0-01/nexus-startup-feature-3.41.0-01-features.xml
                at shaded.org.apache.maven.wagon.shared.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:1250)
                at shaded.org.apache.maven.wagon.shared.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:1140)
                at shaded.org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java:126)
                at shaded.org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:88)
                at shaded.org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61)
                at shaded.org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run(WagonTransporter.java:567)
                at shaded.org.eclipse.aether.transport.wagon.WagonTransporter.execute(WagonTransporter.java:435)
                at shaded.org.eclipse.aether.transport.wagon.WagonTransporter.get(WagonTransporter.java:412)
                at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask(BasicRepositoryConnector.java:456)
                at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:363)
                ... 31 common frames omitted
        Caused by: java.net.UnknownHostException: repo1.maven.org: Nom ou service inconnu
                at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
                at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:929)
                at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1324)
                at java.net.InetAddress.getAllByName0(InetAddress.java:1277)
                at java.net.InetAddress.getAllByName(InetAddress.java:1193)
                at java.net.InetAddress.getAllByName(InetAddress.java:1127)
                at shaded.org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45)
                at shaded.org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:112)
                at shaded.org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:376)
                at shaded.org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393)
                at shaded.org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
                at shaded.org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
                at shaded.org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
                at shaded.org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
                at shaded.org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
                at shaded.org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
                at org.ops4j.pax.url.mvn.internal.wagon.ConfigurableHttpWagon.execute(ConfigurableHttpWagon.java:162)
                at shaded.org.apache.maven.wagon.shared.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:1162)
                ... 40 common frames omitted
Caused by: shaded.org.eclipse.aether.resolution.ArtifactResolutionException: Error resolving artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01
        at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:413)
        at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:215)
        at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:192)
        at shaded.org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:247)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:767)
        ... 22 common frames omitted
2024-07-17 09:07:03,508+0200 ERROR [FelixStartLevel]  *SYSTEM org.apache.karaf.features.internal.service.BootFeaturesInstaller - Error installing boot feature repository mvn:org.sonatype.nexus.assemblies/nexus-startup-feature/3.41.0-01/xml/features
java.lang.RuntimeException: Error resolving artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01: [Could not transfer artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01 from/to central (https://repo1.maven.org/maven2/): transfer failed for https://repo1.maven.org/maven2/org/sonatype/nexus/assemblies/nexus-startup-feature/3.41.0-01/nexus-startup-feature-3.41.0-01-features.xml] : mvn:org.sonatype.nexus.assemblies/nexus-startup-feature/3.41.0-01/xml/features
        at org.apache.karaf.features.internal.service.RepositoryImpl.load(RepositoryImpl.java:121)
        at org.apache.karaf.features.internal.service.RepositoryImpl.<init>(RepositoryImpl.java:51)
        at org.apache.karaf.features.internal.service.RepositoryCacheImpl.create(RepositoryCacheImpl.java:51)
        at org.apache.karaf.features.internal.service.FeaturesServiceImpl.addRepository(FeaturesServiceImpl.java:386)
        at org.apache.karaf.features.internal.service.FeaturesServiceImpl.addRepository(FeaturesServiceImpl.java:381)
        at org.apache.karaf.features.internal.service.BootFeaturesInstaller.addRepositories(BootFeaturesInstaller.java:118)
        at org.apache.karaf.features.internal.service.BootFeaturesInstaller.installBootFeatures(BootFeaturesInstaller.java:87)
        at org.apache.karaf.features.internal.service.BootFeaturesInstaller.start(BootFeaturesInstaller.java:81)
        at org.apache.karaf.features.internal.osgi.Activator.doStart(Activator.java:214)
        at org.apache.karaf.util.tracker.BaseActivator.start(BaseActivator.java:92)
        at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:698)
        at org.apache.felix.framework.Felix.activateBundle(Felix.java:2402)
        at org.apache.felix.framework.Felix.startBundle(Felix.java:2308)
        at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1539)
        at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:308)
        at java.lang.Thread.run(Thread.java:750)
Caused by: java.io.IOException: Error resolving artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01: [Could not transfer artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01 from/to central (https://repo1.maven.org/maven2/): transfer failed for https://repo1.maven.org/maven2/org/sonatype/nexus/assemblies/nexus-startup-feature/3.41.0-01/nexus-startup-feature-3.41.0-01-features.xml]
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.configureIOException(AetherBasedResolver.java:803)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:774)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:657)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:598)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:565)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:555)
        at org.ops4j.pax.url.mvn.internal.Connection.getInputStream(Connection.java:123)
        at java.net.URL.openStream(URL.java:1093)
        at org.apache.karaf.features.internal.service.RepositoryImpl.load(RepositoryImpl.java:114)
        ... 15 common frames omitted
        Suppressed: shaded.org.eclipse.aether.transfer.ArtifactTransferException: Could not transfer artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01 from/to central (https://repo1.maven.org/maven2/): transfer failed for https://repo1.maven.org/maven2/org/sonatype/nexus/assemblies/nexus-startup-feature/3.41.0-01/nexus-startup-feature-3.41.0-01-features.xml
                at shaded.org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:52)
                at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:368)
                at shaded.org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:75)
                at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute(BasicRepositoryConnector.java:642)
                at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:262)
                at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:489)
                at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:390)
                at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:215)
                at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:192)
                at shaded.org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:247)
                at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:767)
                ... 22 common frames omitted
        Caused by: shaded.org.apache.maven.wagon.TransferFailedException: transfer failed for https://repo1.maven.org/maven2/org/sonatype/nexus/assemblies/nexus-startup-feature/3.41.0-01/nexus-startup-feature-3.41.0-01-features.xml
                at shaded.org.apache.maven.wagon.shared.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:1250)
                at shaded.org.apache.maven.wagon.shared.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:1140)
                at shaded.org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java:126)
                at shaded.org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:88)
                at shaded.org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61)
                at shaded.org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run(WagonTransporter.java:567)
                at shaded.org.eclipse.aether.transport.wagon.WagonTransporter.execute(WagonTransporter.java:435)
                at shaded.org.eclipse.aether.transport.wagon.WagonTransporter.get(WagonTransporter.java:412)
                at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask(BasicRepositoryConnector.java:456)
                at shaded.org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:363)
                ... 31 common frames omitted
        Caused by: java.net.UnknownHostException: repo1.maven.org: Nom ou service inconnu
                at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
                at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:929)
                at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1324)
                at java.net.InetAddress.getAllByName0(InetAddress.java:1277)
                at java.net.InetAddress.getAllByName(InetAddress.java:1193)
                at java.net.InetAddress.getAllByName(InetAddress.java:1127)
                at shaded.org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45)
                at shaded.org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:112)
                at shaded.org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:376)
                at shaded.org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393)
                at shaded.org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
                at shaded.org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
                at shaded.org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
                at shaded.org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
                at shaded.org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
                at shaded.org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
                at org.ops4j.pax.url.mvn.internal.wagon.ConfigurableHttpWagon.execute(ConfigurableHttpWagon.java:162)
                at shaded.org.apache.maven.wagon.shared.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:1162)
                ... 40 common frames omitted
Caused by: shaded.org.eclipse.aether.resolution.ArtifactResolutionException: Error resolving artifact org.sonatype.nexus.assemblies:nexus-startup-feature:xml:features:3.41.0-01
        at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:413)
        at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:215)
        at shaded.org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:192)
        at shaded.org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:247)
        at org.ops4j.pax.url.mvn.internal.AetherBasedResolver.resolve(AetherBasedResolver.java:767)
        ... 22 common frames omitted

in my view, there is no change on network or proxy settings
Many thanks for your helps

the error come from that the etc/karaf/org.ops4j.pax.url.mvn.cfg file was empty
we take a backup one and service came back

I believe this issue was fixed in a later version, you may wish to upgrade.