ClassNotFoundException: sun.misc.Unsafe when using Java 21/WildFly 31/Wicket 10

[losmurfs]

Using ehcache 3.10.8 with Jakarta EE 10.

13:28:36,570 ERROR [io.undertow.request] (default task-2) UT005023: Exception handling request to /wbm-rmatv-web/: java.lang.NoClassDefFoundError: sun/misc/Unsafe
at deployment.wbm.ear//org.ehcache.impl.internal.concurrent.ThreadLocalRandomUtil.getSMU(ThreadLocalRandomUtil.java:52)
at deployment.wbm.ear//org.ehcache.impl.internal.concurrent.ThreadLocalRandomUtil.(ThreadLocalRandomUtil.java:37)
at deployment.wbm.ear//org.ehcache.impl.internal.concurrent.ConcurrentHashMap$TreeBin.(ConcurrentHashMap.java:3316)
at deployment.wbm.ear//org.ehcache.impl.internal.concurrent.ConcurrentHashMap.(ConcurrentHashMap.java:283)
at deployment.wbm.ear//org.ehcache.impl.internal.store.heap.SimpleBackend.(SimpleBackend.java:38)
at deployment.wbm.ear//org.ehcache.impl.internal.store.heap.OnHeapStore.lambda$new$4(OnHeapStore.java:229)
at deployment.wbm.ear//org.ehcache.impl.internal.store.heap.OnHeapStore.(OnHeapStore.java:233)
at deployment.wbm.ear//org.ehcache.impl.internal.store.heap.OnHeapStore$Provider.createStoreInternal(OnHeapStore.java:1668)
at deployment.wbm.ear//org.ehcache.impl.internal.store.heap.OnHeapStore$Provider.createStore(OnHeapStore.java:1647)
at deployment.wbm.ear//org.ehcache.impl.internal.store.heap.OnHeapStore$Provider.createStore(OnHeapStore.java:1620)
at deployment.wbm.ear//org.ehcache.core.EhcacheManager.getStore(EhcacheManager.java:507)
at deployment.wbm.ear//org.ehcache.core.EhcacheManager.createNewEhcache(EhcacheManager.java:346)
at deployment.wbm.ear//org.ehcache.core.EhcacheManager.createCache(EhcacheManager.java:274)
at deployment.wbm.ear//org.ehcache.core.EhcacheManager.createCache(EhcacheManager.java:252)
at deployment.wbm.ear//org.ehcache.core.EhcacheManager.createCache(EhcacheManager.java:247)

With ehcache disabled it works.

[losmurfs]

I also get the same error if I comple with and run in Java 17.
This is what it looks like after I disable ehcache:

So likely an issue with WildFly 31 or Jakarta EE 10. I don't think Wicket 10 would cause the issue.

[losmurfs]

Is there a way to use ehcache without unsafe/java/org/ehcache/impl/internal/concurrent?

[losmurfs]

To enable ehcache you can modify subsystem ee in standalone/configuration/standalone-full.xml:

...
  <subsystem xmlns="urn:jboss:domain:ee:6.0">
    <global-modules>
         <module name="com.microsoft.sqlserver" slot="main"/>
         <module name="jdk.unsupported"/>
    </global-modules>
    ...
  </subsystem>
...

[losmurfs]

I have dound a workaround see comment above.

[ludade]

Hello,
We have a similar issue with an application under JBoss EAP 8.0.0.GA running with java 17. On the REST get call we use caching feature with ehcache-3.10.8-jakarta.jar and it throws the following error (log server error) :

�[0m�[31m17:31:21,451 ERROR [org.jboss.resteasy.core.providerfactory.DefaultExceptionMapper] (default task-1) RESTEASY002375: Error processing request GET /myapplication-rest-jaxrs/api/v1/notifications - com.myapplication.banking.myapplication.rest.contract.v1.api.INotificationApi.listNotification: java.lang.NoClassDefFoundError: sun/misc/Unsafe at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.impl.internal.concurrent.ThreadLocalRandomUtil.getSMU(ThreadLocalRandomUtil.java:52) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.impl.internal.concurrent.ThreadLocalRandomUtil.<clinit>(ThreadLocalRandomUtil.java:37) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.impl.internal.concurrent.ConcurrentHashMap$TreeBin.<clinit>(ConcurrentHashMap.java:3316) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.impl.internal.concurrent.ConcurrentHashMap.<clinit>(ConcurrentHashMap.java:283) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.impl.internal.store.heap.SimpleBackend.<init>(SimpleBackend.java:38) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.impl.internal.store.heap.OnHeapStore.lambda$new$4(OnHeapStore.java:229) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.impl.internal.store.heap.OnHeapStore.<init>(OnHeapStore.java:233) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.impl.internal.store.heap.OnHeapStore$Provider.createStoreInternal(OnHeapStore.java:1668) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.impl.internal.store.heap.OnHeapStore$Provider.createStore(OnHeapStore.java:1647) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.impl.internal.store.heap.OnHeapStore$Provider.createStore(OnHeapStore.java:1620) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.core.EhcacheManager.getStore(EhcacheManager.java:507) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.core.EhcacheManager.createNewEhcache(EhcacheManager.java:346) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.core.EhcacheManager.createCache(EhcacheManager.java:274) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.core.EhcacheManager.createCache(EhcacheManager.java:252) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//org.ehcache.jsr107.Eh107CacheManager.createCache(Eh107CacheManager.java:180) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.commons.cache.AbstractMultiCacheAccessor.getCacheOrCreate(AbstractMultiCacheAccessor.java:61) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.commons.cache.AbstractMultiCacheAccessor.getValue(AbstractMultiCacheAccessor.java:82) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.commons.nrest.util.RestCache.computeIfAbsent(RestCache.java:296) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.commons.nrest.util.RestCache.computeIfAbsent(RestCache.java:268) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.commons.nrest.rules.SBFRuleReader.findEndPointRule(SBFRuleReader.java:136) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.nrest.api.AbstractRestApi.findRule(AbstractRestApi.java:309) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.nrest.security.SBFBusinessValidatorDefault.isValid(SBFBusinessValidatorDefault.java:205) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.nrest.util.BusinessContextUtility.lambda$verifyAndSetServiceContext$2(BusinessContextUtility.java:364) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.nrest.util.BusinessContextUtility.proceedForValidation(BusinessContextUtility.java:425) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.nrest.util.BusinessContextUtility.verifyAndSetServiceContext(BusinessContextUtility.java:364) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.nrest.util.BusinessContextUtility.verifyAndSetServiceContext(BusinessContextUtility.java:311) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.nrest.util.BusinessContextUtility$Proxy$_$$_WeldClientProxy.verifyAndSetServiceContext(Unknown Source) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear.myapplication-rest-jaxrs-6.0.0-SNAPSHOT-jboss7.war//com.myapplication.banking.myapplication.rest.api.v1.admin.NotificationApi.listNotification(NotificationApi.java:37) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at [e-mail]-redhat-00001//org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:154) at [e-mail]-redhat-00001//org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:118) at [e-mail]-redhat-00001//org.jboss.resteasy.core.ResourceMethodInvoker.internalInvokeOnTarget(ResourceMethodInvoker.java:560) at [e-mail]-redhat-00001//org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTargetAfterFilter(ResourceMethodInvoker.java:452) at [e-mail]-redhat-00001//org.jboss.resteasy.core.ResourceMethodInvoker.lambda$invokeOnTarget$2(ResourceMethodInvoker.java:413) at [e-mail]-redhat-00001//org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:321) at [e-mail]-redhat-00001//org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:415) at [e-mail]-redhat-00001//org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:378) at [e-mail]-redhat-00001//org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:356) at [e-mail]-redhat-00001//org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:70) at [e-mail]-redhat-00001//org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:429) at [e-mail]-redhat-00001//org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke$4(SynchronousDispatcher.java:240) at [e-mail]-redhat-00001//org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess$0(SynchronousDispatcher.java:154) at [e-mail]-redhat-00001//org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:321) at [e-mail]-redhat-00001//org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:157) at [e-mail]-redhat-00001//org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:229) at [e-mail]-redhat-00001//org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:222) at [e-mail]-redhat-00001//org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) at [e-mail]-redhat-00001//org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51) at [e-mail]-00001//jakarta.servlet.http.HttpServlet.service(HttpServlet.java:614) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:204) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:239) at [e-mail]3-redhat-00001//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:67) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.nrest.filter.RestWebFilter.doFilter(RestWebFilter.java:64) at [e-mail]3-redhat-00001//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:67) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.security.filter.AbstractSecurityFilter.filter(AbstractSecurityFilter.java:533) at deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear//com.myapplication.framework.security.filter.AbstractSecurityFilter.doFilter(AbstractSecurityFilter.java:461) at [e-mail]3-redhat-00001//io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:67) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) at [e-mail]-redhat-00001//org.wildfly.elytron.web.undertow.server.ElytronRunAsHandler.lambda$handleRequest$1(ElytronRunAsHandler.java:68) at [e-mail]-redhat-00001//org.wildfly.security.auth.server.FlexibleIdentityAssociation.runAsFunctionEx(FlexibleIdentityAssociation.java:103) at [e-mail]-redhat-00001//org.wildfly.security.auth.server.Scoped.runAsFunctionEx(Scoped.java:161) at [e-mail]-redhat-00001//org.wildfly.security.auth.server.Scoped.runAs(Scoped.java:73) at [e-mail]-redhat-00001//org.wildfly.elytron.web.undertow.server.ElytronRunAsHandler.handleRequest(ElytronRunAsHandler.java:67) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) at [e-mail]3-redhat-00001//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at [e-mail]3-redhat-00001//io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) at [e-mail]3-redhat-00001//io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) at [e-mail]-redhat-00001//org.wildfly.elytron.web.undertow.server.servlet.CleanUpHandler.handleRequest(CleanUpHandler.java:38) at [e-mail]3-redhat-00001//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at [e-mail]-redhat-00011//org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61) at [e-mail]3-redhat-00001//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at [e-mail]-redhat-00011//org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52) at [e-mail]3-redhat-00001//io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:276) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:132) at [e-mail]3-redhat-00001//io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) at [e-mail]3-redhat-00001//io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) at [e-mail]-redhat-00011//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1430) at [e-mail]-redhat-00011//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1430) at [e-mail]-redhat-00011//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1430) at [e-mail]-redhat-00011//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1430) at [e-mail]-redhat-00011//org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1430) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:256) at [e-mail]3-redhat-00001//io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:101) at [e-mail]3-redhat-00001//io.undertow.server.Connectors.executeRootHandler(Connectors.java:393) at [e-mail]3-redhat-00001//io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:859) at [e-mail]-redhat-00001//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35) at [e-mail]-redhat-00001//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990) at [e-mail]-redhat-00001//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486) at [e-mail]-redhat-00001//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1348) at [e-mail]2-redhat-00001//org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1282) at java.base/java.lang.Thread.run(Thread.java:840) Caused by: java.lang.ClassNotFoundException: sun.misc.Unsafe from [Module "deployment.myapplication-ear-6.0.0-SNAPSHOT-jboss7.ear" from Service Module Loader] at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:200) at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:410) at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398) at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:116) ... 108 more

Maybe addition of module-info file in the ehcach jar can resolve the issue under WildFly/JBoss EAP runtimes, see

Regards.

[ludade]

To enable ehcache you can modify subsystem ee in standalone/configuration/standalone-full.xml:

...
  <subsystem xmlns="urn:jboss:domain:ee:6.0">
    <global-modules>
         <module name="com.microsoft.sqlserver" slot="main"/>
         <module name="jdk.unsupported"/>
    </global-modules>
    ...
  </subsystem>
...

Indeed, you can apply this workaround or alternative solution is to add on the startup server shell script the same behavior done on previous server version. Example on JBoss EAP 7.4 you can find in the common.bat/sh scripts the following parameters:

  call :setModularJdk  
  if "!MODULAR_JDK!" == "true" (
    echo "%~1" | findstr /I "\-\-add\-modules" > nul
    if errorlevel == 1 (
      rem Set default modular jdk options
      set "DEFAULT_MODULAR_JVM_OPTIONS=!DEFAULT_MODULAR_JVM_OPTIONS! --add-exports=java.base/sun.nio.ch=ALL-UNNAMED"
      set "DEFAULT_MODULAR_JVM_OPTIONS=!DEFAULT_MODULAR_JVM_OPTIONS! --add-exports=jdk.unsupported/sun.misc=ALL-UNNAMED"
      set "DEFAULT_MODULAR_JVM_OPTIONS=!DEFAULT_MODULAR_JVM_OPTIONS! --add-exports=jdk.unsupported/sun.reflect=ALL-UNNAMED"
    ) else (
      set "DEFAULT_MODULAR_JVM_OPTIONS="
    )
  )
goto:eof

It was removed on JBoss EAP 8 because more en more libraries have a module info inside their jar. Maybe the next ehcache version will include module info file.