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Published Sep. 10, 2025

ClassNotFoundException when deploying a custom WAR portlet module in the folder deploy

Written By

Daniel Couso

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Issue

  • Errors like the following one appear when deploying a custom WAR module in the deploy folder:
ERROR [fileinstall-directory-watcher][HotDeployImpl:213] com.liferay.portal.kernel.deploy.hot.HotDeployException: Error registering portlets for my-portlet
com.liferay.portal.kernel.deploy.hot.HotDeployException: Error registering portlets for my-portlet
    at com.liferay.portal.kernel.deploy.hot.BaseHotDeployListener.throwHotDeployException(BaseHotDeployListener.java:38)
    at com.liferay.portal.deploy.hot.PortletHotDeployListener.invokeDeploy(PortletHotDeployListener.java:100)
    at com.liferay.portal.deploy.hot.HotDeployImpl.doFireDeployEvent(HotDeployImpl.java:210)
    at com.liferay.portal.deploy.hot.HotDeployImpl.fireDeployEvent(HotDeployImpl.java:94)
    at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:27)
    at com.liferay.portal.kernel.servlet.PluginContextListener.fireDeployEvent(PluginContextListener.java:189)
    at com.liferay.portal.kernel.servlet.PluginContextListener.doPortalInit(PluginContextListener.java:179)
    at com.liferay.portal.kernel.util.BasePortalLifecycle.portalInit(BasePortalLifecycle.java:44)
    at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:75)
    at com.liferay.portal.kernel.util.PortalLifecycleUtil.register(PortalLifecycleUtil.java:57)
    at com.liferay.portal.kernel.util.BasePortalLifecycle.registerPortalLifecycle(BasePortalLifecycle.java:55)
    at com.liferay.portal.kernel.servlet.PluginContextListener.contextInitialized(PluginContextListener.java:141)
    at com.liferay.portal.osgi.web.wab.extender.internal.adapter.ServletContextListenerExceptionAdapter._initializeContext(ServletContextListenerExceptionAdapter.java:119)
    at com.liferay.portal.osgi.web.wab.extender.internal.adapter.ServletContextListenerExceptionAdapter.contextInitialized(ServletContextListenerExceptionAdapter.java:99)
    at sun.reflect.GeneratedMethodAccessor165.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.eclipse.equinox.http.servlet.internal.registration.ListenerRegistration$EventListenerInvocationHandler.invoke(ListenerRegistration.java:143)
    at com.sun.proxy.$Proxy435.contextInitialized(Unknown Source)
    at org.eclipse.equinox.http.servlet.internal.context.ContextController.doAddListenerRegistration(ContextController.java:398)
    at org.eclipse.equinox.http.servlet.internal.context.ContextController.addListenerRegistration(ContextController.java:352)
    at org.eclipse.equinox.http.servlet.internal.customizer.ContextListenerTrackerCustomizer.addingService(ContextListenerTrackerCustomizer.java:76)
    at org.eclipse.equinox.http.servlet.internal.customizer.ContextListenerTrackerCustomizer.addingService(ContextListenerTrackerCustomizer.java:1)
    at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:943)
    at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1)
    at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
    at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
    at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:903)
    at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:109)
    at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:891)
    at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:804)
    at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:127)
    at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:228)
    at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:469)
    at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:487)
    at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:1004)
    at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.initListeners(WabBundleProcessor.java:625)
    at com.liferay.portal.osgi.web.wab.extender.internal.WabBundleProcessor.init(WabBundleProcessor.java:231)
    at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer._initWabBundle(WebBundleDeployer.java:159)
    at com.liferay.portal.osgi.web.wab.extender.internal.WebBundleDeployer.doStart(WebBundleDeployer.java:88)
    at com.liferay.portal.osgi.web.wab.extender.internal.WabFactory$WABExtension.start(WabFactory.java:115)
    at com.liferay.portal.osgi.web.wab.extender.internal.WabFactory.addingBundle(WabFactory.java:68)
    at com.liferay.portal.osgi.web.wab.extender.internal.WabFactory.addingBundle(WabFactory.java:50)
    at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:475)
    at org.osgi.util.tracker.BundleTracker$Tracked.customizerAdding(BundleTracker.java:1)
    at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
    at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
    at org.osgi.util.tracker.BundleTracker$Tracked.bundleChanged(BundleTracker.java:450)
    at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:908)
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
    at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
    at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEventPrivileged(EquinoxEventPublisher.java:230)
    at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:137)
    at org.eclipse.osgi.internal.framework.EquinoxEventPublisher.publishBundleEvent(EquinoxEventPublisher.java:129)
    at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor.publishModuleEvent(EquinoxContainerAdaptor.java:191)
    at org.eclipse.osgi.container.Module.publishEvent(Module.java:476)
    at org.eclipse.osgi.container.Module.doStart(Module.java:578)
    at org.eclipse.osgi.container.Module.start(Module.java:449)
    at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:428)
    at com.liferay.portal.file.install.internal.DirectoryWatcher._startBundle(DirectoryWatcher.java:1122)
    at com.liferay.portal.file.install.internal.DirectoryWatcher._startBundles(DirectoryWatcher.java:1155)
    at com.liferay.portal.file.install.internal.DirectoryWatcher._process(DirectoryWatcher.java:1017)
    at com.liferay.portal.file.install.internal.DirectoryWatcher.run(DirectoryWatcher.java:265)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myController' defined in URL [jar:file:/C:/liferay/liferay-dxp-7.3.10-dxp-2/osgi/state/org.eclipse.osgi/4288/0/bundleFile!/WEB-INF/classes/com/company/my/controllers/my/Controller.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [com.company.my.controllers.controller.Controller] from ClassLoader [org.eclipse.osgi.internal.loader.EquinoxClassLoader@c032cdc[my-portlet:7.3.10.1(id=4288)]]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:571)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:897)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551)
    at com.liferay.portletmvc4spring.FrameworkPortlet.createPortletApplicationContext(FrameworkPortlet.java:472)
    at com.liferay.portletmvc4spring.FrameworkPortlet.initPortletApplicationContext(FrameworkPortlet.java:570)
    at com.liferay.portletmvc4spring.FrameworkPortlet.initPortletBean(FrameworkPortlet.java:609)
    at com.liferay.portletmvc4spring.GenericPortletBean.init(GenericPortletBean.java:148)
    at javax.portlet.GenericPortlet.init(GenericPortlet.java:143)
    at com.liferay.portlet.internal.InvokerPortletImpl.init(InvokerPortletImpl.java:248)
    at com.liferay.portal.monitoring.internal.portlet.MonitoringInvokerPortlet.init(MonitoringInvokerPortlet.java:151)
    at com.liferay.portlet.internal.PortletInstanceFactoryImpl.init(PortletInstanceFactoryImpl.java:278)
    at com.liferay.portlet.internal.PortletInstanceFactoryImpl.create(PortletInstanceFactoryImpl.java:181)
    at com.liferay.portlet.internal.PortletInstanceFactoryImpl.create(PortletInstanceFactoryImpl.java:115)
    at com.liferay.portal.kernel.portlet.PortletInstanceFactoryUtil.create(PortletInstanceFactoryUtil.java:40)
    at com.liferay.portal.deploy.hot.PortletHotDeployListener.initPortletApp(PortletHotDeployListener.java:426)
    at com.liferay.portal.deploy.hot.PortletHotDeployListener.doInvokeDeploy(PortletHotDeployListener.java:235)
    at com.liferay.portal.deploy.hot.PortletHotDeployListener.invokeDeploy(PortletHotDeployListener.java:97)
    ... 61 more
Caused by: java.lang.IllegalStateException: Failed to introspect Class [com.company.my.controllers.controller.Controller] from ClassLoader [org.eclipse.osgi.internal.loader.EquinoxClassLoader@c032cdc[my-portlet:7.3.10.1(id=4288)]]
    at org.springframework.util.ReflectionUtils.getDeclaredFields(ReflectionUtils.java:734)
    at org.springframework.util.ReflectionUtils.doWithLocalFields(ReflectionUtils.java:666)
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.buildResourceMetadata(CommonAnnotationBeanPostProcessor.java:366)
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.findResourceMetadata(CommonAnnotationBeanPostProcessor.java:347)
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:295)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:1093)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:568)
    ... 83 more
Caused by: java.lang.NoClassDefFoundError: Lcom/company/my/services/model/MyConfiguracion;
    at java.lang.Class.getDeclaredFields0(Native Method)
    at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
    at java.lang.Class.getDeclaredFields(Class.java:1916)
    at org.springframework.util.ReflectionUtils.getDeclaredFields(ReflectionUtils.java:729)
    ... 89 more
Caused by: java.lang.ClassNotFoundException: com.company.my.services.model.Configuracion cannot be found by my-portlet_7.3.10.1
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:508)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:419)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:411)
    at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:151)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 93 more

Environment

  • DXP 7.2+

Resolution

  • Check if there is a service.xml file, inside the WAR file. If there is one, then remove it from there and redeploy the module.
  • The presence of this file makes the WAB Processor include unnecessary libraries that may interfere with the usual load of classes.

 

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