Java incompatible magic value in class

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java.lang.ClassFormatError: Incompatible magic value 0 in class file jdk/net/ExtendedSocketOptions #16177

java.lang.ClassFormatError: Incompatible magic value 0 in class file jdk/net/ExtendedSocketOptions #16177

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Before reporting an issue

Area

Describe the bug

I’ve updated my keycloak instance from 20.0.1 to 20.0.2 and now one of my two instances is not starting anymore with the error in the title of this report.

After downgrading the version to 20.0.1 it works again. Re-pull and removal / recreation of the containers did not resolve the issue.

The error log right after starting the server:

keycloak_1 | 2022-12-25 22:40:47,848 INFO [org.keycloak.quarkus.runtime.hostname.DefaultHostnameProvider] (main) Hostname settings: Base URL: https://auth.darmstadt.social, Hostname: auth.darmstadt.social, Strict HTTPS: true, Path: /, Strict BackChannel: false, Admin URL: , Admin: , Port: -1, Proxied: true keycloak_1 | 2022-12-25 22:40:49,182 WARN [io.quarkus.agroal.runtime.DataSources] (main) Datasource enables XA but transaction recovery is not enabled. Please enable transaction recovery by setting quarkus.transaction-manager.enable-recovery=true, otherwise data may be lost if the application is terminated abruptly keycloak_1 | 2022-12-25 22:40:49,461 WARN [io.agroal.pool] (agroal-11) Datasource '': Failed to create connection due to ClassFormatError keycloak_1 | 2022-12-25 22:40:49,944 WARN [org.infinispan.CONFIG] (keycloak-cache-init) ISPN000569: Unable to persist Infinispan internal caches as no global state enabled keycloak_1 | 2022-12-25 22:40:49,963 WARN [org.infinispan.PERSISTENCE] (keycloak-cache-init) ISPN000554: jboss-marshalling is deprecated and planned for removal keycloak_1 | 2022-12-25 22:40:49,974 INFO [org.infinispan.CONTAINER] (keycloak-cache-init) ISPN000556: Starting user marshaller 'org.infinispan.jboss.marshalling.core.JBossUserMarshaller' keycloak_1 | 2022-12-25 22:40:50,182 INFO [org.infinispan.CONTAINER] (keycloak-cache-init) ISPN000128: Infinispan version: Infinispan 'Triskaidekaphobia' 13.0.10.Final keycloak_1 | 2022-12-25 22:40:50,294 INFO [org.infinispan.CLUSTER] (keycloak-cache-init) ISPN000078: Starting JGroups channel `ISPN` keycloak_1 | 2022-12-25 22:40:50,295 INFO [org.infinispan.CLUSTER] (keycloak-cache-init) ISPN000088: Unable to use any JGroups configuration mechanisms provided in properties <>. Using default JGroups configuration! keycloak_1 | 2022-12-25 22:40:50,381 ERROR [org.jgroups.JChannel] (keycloak-cache-init) JGRP000017: 4de99ca88240-12828: disconnect failed: java.lang.NullPointerException keycloak_1 | 2022-12-25 22:40:50,505 ERROR [io.quarkus.runtime.StartupContext] (main) Running a shutdown task failed: java.lang.RuntimeException: Failed to start caches keycloak_1 | at org.keycloak.quarkus.runtime.storage.legacy.infinispan.CacheManagerFactory.getOrCreate(CacheManagerFactory.java:56) keycloak_1 | at org.keycloak.quarkus.runtime.KeycloakRecorder$1.run(KeycloakRecorder.java:90) keycloak_1 | at io.quarkus.runtime.StartupContext.runAllInReverseOrder(StartupContext.java:84) keycloak_1 | at io.quarkus.runtime.StartupContext.close(StartupContext.java:73) keycloak_1 | at io.quarkus.runner.ApplicationImpl.doStart(Unknown Source) keycloak_1 | at io.quarkus.runtime.Application.start(Application.java:101) keycloak_1 | at io.quarkus.runtime.ApplicationLifecycleManager.run(ApplicationLifecycleManager.java:110) keycloak_1 | at io.quarkus.runtime.Quarkus.run(Quarkus.java:69) keycloak_1 | at org.keycloak.quarkus.runtime.KeycloakMain.start(KeycloakMain.java:103) keycloak_1 | at org.keycloak.quarkus.runtime.cli.command.AbstractStartCommand.run(AbstractStartCommand.java:37) keycloak_1 | at picocli.CommandLine.executeUserObject(CommandLine.java:1939) keycloak_1 | at picocli.CommandLine.access$1300(CommandLine.java:145) keycloak_1 | at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2358) keycloak_1 | at picocli.CommandLine$RunLast.handle(CommandLine.java:2352) keycloak_1 | at picocli.CommandLine$RunLast.handle(CommandLine.java:2314) keycloak_1 | at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2179) keycloak_1 | at picocli.CommandLine$RunLast.execute(CommandLine.java:2316) keycloak_1 | at picocli.CommandLine.execute(CommandLine.java:2078) keycloak_1 | at org.keycloak.quarkus.runtime.cli.Picocli.parseAndRun(Picocli.java:93) keycloak_1 | at org.keycloak.quarkus.runtime.KeycloakMain.main(KeycloakMain.java:89) keycloak_1 | at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) keycloak_1 | at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) keycloak_1 | at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) keycloak_1 | at java.base/java.lang.reflect.Method.invoke(Method.java:566) keycloak_1 | at io.quarkus.bootstrap.runner.QuarkusEntryPoint.doRun(QuarkusEntryPoint.java:61) keycloak_1 | at io.quarkus.bootstrap.runner.QuarkusEntryPoint.main(QuarkusEntryPoint.java:32) keycloak_1 | Caused by: java.util.concurrent.ExecutionException: org.infinispan.manager.EmbeddedCacheManagerStartupException: org.infinispan.commons.CacheConfigurationException: Error starting component org.infinispan.remoting.transport.Transport keycloak_1 | at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122) keycloak_1 | at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:205) keycloak_1 | at org.keycloak.quarkus.runtime.storage.legacy.infinispan.CacheManagerFactory.getOrCreate(CacheManagerFactory.java:54) keycloak_1 | . 25 more keycloak_1 | Caused by: org.infinispan.manager.EmbeddedCacheManagerStartupException: org.infinispan.commons.CacheConfigurationException: Error starting component org.infinispan.remoting.transport.Transport keycloak_1 | at org.infinispan.manager.DefaultCacheManager.internalStart(DefaultCacheManager.java:770) keycloak_1 | at org.infinispan.manager.DefaultCacheManager.start(DefaultCacheManager.java:734) keycloak_1 | at org.infinispan.manager.DefaultCacheManager.(DefaultCacheManager.java:405) keycloak_1 | at org.keycloak.quarkus.runtime.storage.legacy.infinispan.CacheManagerFactory.startCacheManager(CacheManagerFactory.java:86) keycloak_1 | at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) keycloak_1 | at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) keycloak_1 | at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) keycloak_1 | at java.base/java.lang.Thread.run(Thread.java:829) keycloak_1 | Caused by: org.infinispan.commons.CacheConfigurationException: Error starting component org.infinispan.remoting.transport.Transport keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.startWrapper(BasicComponentRegistryImpl.java:585) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.access$700(BasicComponentRegistryImpl.java:30) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl$ComponentWrapper.running(BasicComponentRegistryImpl.java:808) keycloak_1 | at org.infinispan.metrics.impl.MetricsCollector.start(MetricsCollector.java:70) keycloak_1 | at org.infinispan.metrics.impl.CorePackageImpl$1.start(CorePackageImpl.java:41) keycloak_1 | at org.infinispan.metrics.impl.CorePackageImpl$1.start(CorePackageImpl.java:34) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.invokeStart(BasicComponentRegistryImpl.java:617) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.doStartWrapper(BasicComponentRegistryImpl.java:608) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.startWrapper(BasicComponentRegistryImpl.java:577) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.access$700(BasicComponentRegistryImpl.java:30) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl$ComponentWrapper.running(BasicComponentRegistryImpl.java:808) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.startDependencies(BasicComponentRegistryImpl.java:635) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.doStartWrapper(BasicComponentRegistryImpl.java:599) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.startWrapper(BasicComponentRegistryImpl.java:577) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.access$700(BasicComponentRegistryImpl.java:30) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl$ComponentWrapper.running(BasicComponentRegistryImpl.java:808) keycloak_1 | at org.infinispan.factories.AbstractComponentRegistry.internalStart(AbstractComponentRegistry.java:354) keycloak_1 | at org.infinispan.factories.AbstractComponentRegistry.start(AbstractComponentRegistry.java:250) keycloak_1 | at org.infinispan.manager.DefaultCacheManager.internalStart(DefaultCacheManager.java:766) keycloak_1 | . 7 more keycloak_1 | Caused by: java.lang.NoClassDefFoundError: Could not initialize class sun.net.ext.ExtendedSocketOptions keycloak_1 | at java.base/java.net.PlainDatagramSocketImpl.(PlainDatagramSocketImpl.java:46) keycloak_1 | at java.base/java.net.DefaultDatagramSocketImplFactory.createDatagramSocketImpl(DefaultDatagramSocketImplFactory.java:72) keycloak_1 | at java.base/java.net.DatagramSocket.createImpl(DatagramSocket.java:333) keycloak_1 | at java.base/java.net.DatagramSocket.(DatagramSocket.java:241) keycloak_1 | at java.base/java.net.MulticastSocket.(MulticastSocket.java:168) keycloak_1 | at org.jgroups.util.DefaultSocketFactory.createMulticastSocket(DefaultSocketFactory.java:129) keycloak_1 | at org.jgroups.protocols.UDP.createMulticastSocket(UDP.java:533) keycloak_1 | at org.jgroups.protocols.UDP.createSockets(UDP.java:362) keycloak_1 | at org.jgroups.protocols.UDP.start(UDP.java:292) keycloak_1 | at org.jgroups.stack.ProtocolStack.startStack(ProtocolStack.java:881) keycloak_1 | at org.jgroups.JChannel.startStack(JChannel.java:985) keycloak_1 | at org.jgroups.JChannel._preConnect(JChannel.java:849) keycloak_1 | at org.jgroups.JChannel.connect(JChannel.java:358) keycloak_1 | at org.jgroups.JChannel.connect(JChannel.java:352) keycloak_1 | at org.infinispan.remoting.transport.jgroups.JGroupsTransport.startJGroupsChannelIfNeeded(JGroupsTransport.java:554) keycloak_1 | at org.infinispan.remoting.transport.jgroups.JGroupsTransport.start(JGroupsTransport.java:478) keycloak_1 | at org.infinispan.remoting.transport.jgroups.CorePackageImpl$1.start(CorePackageImpl.java:42) keycloak_1 | at org.infinispan.remoting.transport.jgroups.CorePackageImpl$1.start(CorePackageImpl.java:27) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.invokeStart(BasicComponentRegistryImpl.java:617) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.doStartWrapper(BasicComponentRegistryImpl.java:608) keycloak_1 | at org.infinispan.factories.impl.BasicComponentRegistryImpl.startWrapper(BasicComponentRegistryImpl.java:577) keycloak_1 | . 25 more keycloak_1 | keycloak_1 | ERROR: Failed to start server in (production) mode keycloak_1 | ERROR: java.lang.ClassFormatError: Incompatible magic value 0 in class file jdk/net/ExtendedSocketOptions keycloak_1 | ERROR: Incompatible magic value 0 in class file jdk/net/ExtendedSocketOptions keycloak_1 | For more details run the same command passing the '--verbose' option. Also you can use '--help' to see the details about the usage of the particular command. 

Version

Expected behavior

The server starts as before when issuing docker-compose up -d in my case.

Actual behavior

The server errors out and refuses to start with the aformentioned error message.

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