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    Check if the version of resteasy is using is the same JBoss is using. To find it out, search for resteasy-jaxrs* in JBoss/Wildfly directory and at your pom.xml.

Solutions on the web

via JIRA by Thomas, 2 years ago
Failed to link liquibase/serializer/core/yaml/YamlSerializer$LiquibaseRepresenter (Module "deployment.DbIT.war:main" from Service Module Loader)
via JIRA by Thomas, 1 year ago
Failed to link liquibase/serializer/core/yaml/YamlSerializer$LiquibaseRepresenter (Module "deployment.DbIT.war:main" from Service Module Loader)
via liferay.com by Unknown author, 1 year ago
Failed to link com/liferay/alloy/taglib/liferay/base/BaseNoJSPTag (Module "deployment.ROOT.war:main" from Service Module Loader)
via Stack Overflow by Revati Sonawane
, 10 months ago
Failed to link org/springframework/web/filter/GenericFilterBean (Module "org.springframework.spring:main" from local module loader @eafc191 (finder: local module finder @612fc6eb (roots: C:\Program Files\jboss-eap-6.4\modules,C:\Program Files\jboss-eap-6.4\modules\system\layers\base)))
via Stack Overflow by Michael Guinn
, 2 years ago
Failed to link org/apache/logging/log4j/core/net/AbstractJMSReceiver (Module "org.apache.log4j2:main" from local module loader @1c323a (finder: local module finder @125871f (roots: /usr/local/share/wildfly/modules,/usr/local/share/wildfly/modules/system/layers/base)))
via Stack Overflow by suraj singh
, 4 months ago
Failed to link org/springframework/web/servlet/tags/RequestContextAwareTag (Module "org.springframework.spring:main" from local module loader @3ff33ecb (finder: local module finder @7a9fa239 (roots: E:\software\jboss-eap-6.2.0\jboss-eap-6.2\modules,E:\software\jboss-eap-6.2.0\jboss-eap-6.2\modules\system\layers\base)))
java.lang.ClassNotFoundException: org.yaml.snakeyaml.representer.Representer from [Module "deployment.DbIT.war:main" from Service Module Loader]	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:205)	at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:455)	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:404)	at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:385)	at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:130)	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:760)	at org.jboss.modules.ModuleClassLoader.doDefineOrLoadClass(ModuleClassLoader.java:353)	at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:432)	at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:269)	at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:77)	at org.jboss.modules.Module.loadModuleClass(Module.java:560)	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:197)	at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:455)	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:404)	at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:385)	at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:130)	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:760)	at org.jboss.modules.ModuleClassLoader.doDefineOrLoadClass(ModuleClassLoader.java:353)	at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:432)	at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:269)	at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:77)	at org.jboss.modules.Module.loadModuleClass(Module.java:560)	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:197)	at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:455)	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:404)	at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:385)	at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:130)	at liquibase.servicelocator.DefaultPackageScanClassResolver.loadClass(DefaultPackageScanClassResolver.java:372)	at liquibase.servicelocator.DefaultPackageScanClassResolver.loadImplementationsInJar(DefaultPackageScanClassResolver.java:445)	at liquibase.servicelocator.DefaultPackageScanClassResolver.findAllClasses(DefaultPackageScanClassResolver.java:231)	at liquibase.servicelocator.DefaultPackageScanClassResolver.find(DefaultPackageScanClassResolver.java:121)	at liquibase.servicelocator.DefaultPackageScanClassResolver.findImplementations(DefaultPackageScanClassResolver.java:89)	at liquibase.servicelocator.ServiceLocator.findClassesImpl(ServiceLocator.java:209)	at liquibase.servicelocator.ServiceLocator.findClasses(ServiceLocator.java:184)	at liquibase.servicelocator.ServiceLocator.findClass(ServiceLocator.java:148)	at liquibase.servicelocator.ServiceLocator.newInstance(ServiceLocator.java:197)	at liquibase.logging.LogFactory.getLog(LogFactory.java:50)	at liquibase.logging.LogFactory.getLogger(LogFactory.java:39)	at liquibase.integration.cdi.CDILiquibase.(CDILiquibase.java:75)	at liquibase.integration.cdi.CDILiquibase$Proxy$_$$_WeldClientProxy.(Unknown Source)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)	at java.lang.Class.newInstance(Class.java:442)	at org.jboss.weld.bean.proxy.DefaultProxyInstantiator.newInstance(DefaultProxyInstantiator.java:43)	at org.jboss.weld.bean.proxy.ProxyFactory.run(ProxyFactory.java:307)	at org.jboss.weld.bean.proxy.ProxyFactory.create(ProxyFactory.java:299)	at org.jboss.weld.bean.proxy.ClientProxyFactory.create(ClientProxyFactory.java:83)	at org.jboss.weld.bean.proxy.ClientProxyProvider.createClientProxy(ClientProxyProvider.java:198)	at org.jboss.weld.bean.proxy.ClientProxyProvider.createClientProxy(ClientProxyProvider.java:188)	at org.jboss.weld.bean.proxy.ClientProxyProvider.access$100(ClientProxyProvider.java:46)	at org.jboss.weld.bean.proxy.ClientProxyProvider$CreateClientProxy.load(ClientProxyProvider.java:57)	at org.jboss.weld.bean.proxy.ClientProxyProvider$CreateClientProxy.load(ClientProxyProvider.java:53)	at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527)	at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319)	at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282)	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197)	at com.google.common.cache.LocalCache.get(LocalCache.java:3937)	at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941)	at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824)	at org.jboss.weld.util.cache.LoadingCacheUtils.getCacheValue(LoadingCacheUtils.java:49)	at org.jboss.weld.util.cache.LoadingCacheUtils.getCastCacheValue(LoadingCacheUtils.java:74)	at org.jboss.weld.bean.proxy.ClientProxyProvider.getClientProxy(ClientProxyProvider.java:222)	at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:755)	at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:784)	at org.jboss.weld.util.ForwardingBeanManager.getReference(ForwardingBeanManager.java:61)	at org.jboss.weld.bean.builtin.BeanManagerProxy.getReference(BeanManagerProxy.java:85)	at liquibase.integration.cdi.CDIBootstrap.afterDeploymentValidation(CDIBootstrap.java:111)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.jboss.weld.injection.StaticMethodInjectionPoint.invoke(StaticMethodInjectionPoint.java:88)	at org.jboss.weld.injection.MethodInvocationStrategy$SpecialParamPlusBeanManagerStrategy.invoke(MethodInvocationStrategy.java:144)	at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:306)	at org.jboss.weld.event.ExtensionObserverMethodImpl.sendEvent(ExtensionObserverMethodImpl.java:121)	at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:284)	at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:262)	at org.jboss.weld.event.ObserverNotifier.notifySyncObservers(ObserverNotifier.java:271)	at org.jboss.weld.event.ObserverNotifier.notify(ObserverNotifier.java:260)	at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:154)	at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:148)	at org.jboss.weld.bootstrap.events.AbstractContainerEvent.fire(AbstractContainerEvent.java:54)	at org.jboss.weld.bootstrap.events.AbstractDeploymentContainerEvent.fire(AbstractDeploymentContainerEvent.java:35)	at org.jboss.weld.bootstrap.events.AfterDeploymentValidationImpl.fire(AfterDeploymentValidationImpl.java:28)	at org.jboss.weld.bootstrap.WeldStartup.validateBeans(WeldStartup.java:447)	at org.jboss.weld.bootstrap.WeldBootstrap.validateBeans(WeldBootstrap.java:90)	at org.jboss.as.weld.WeldStartService.start(WeldStartService.java:94)	at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)	at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)