Develop Reference

Liferay 7.3 - org.hibernate.MappingException: entity class not found

I'm pretty new to Liferay development. I'm working on migrating a project from 6.2 to 7.3.
The plugin I'm working on has the -api / -service / -portlet structure that I've seen in the tutorials.
When I try to deploy the service JAR to my server, I'm getting the following error:
2021-07-07 10:30:11.759 ERROR [pipe-start 1356][LiferayServiceExtender:88] org.hibernate.MappingException: entity class not found: PhishRodLab.db.model.impl.Customer_PreferencesImpl
org.hibernate.MappingException: entity class not found: PhishRodLab.db.model.impl.Customer_PreferencesImpl
at org.hibernate.mapping.PersistentClass.getMappedClass(PersistentClass.java:125)
at org.hibernate.tuple.PropertyFactory.getGetter(PropertyFactory.java:191)
at org.hibernate.tuple.PropertyFactory.buildIdentifierProperty(PropertyFactory.java:67)
at org.hibernate.tuple.entity.EntityMetamodel.(EntityMetamodel.java:135)
at org.hibernate.persister.entity.AbstractEntityPersister.(AbstractEntityPersister.java:485)
at org.hibernate.persister.entity.SingleTableEntityPersister.(SingleTableEntityPersister.java:133)
at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:84)
at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:286)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1872)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:795)
at com.liferay.portal.spring.hibernate.PortalHibernateConfiguration.newSessionFactory(PortalHibernateConfiguration.java:298)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:717)
at com.liferay.portal.spring.hibernate.PortalHibernateConfiguration.buildSessionFactory(PortalHibernateConfiguration.java:99)
at com.liferay.portal.spring.extender.internal.LiferayServiceExtender$LiferayServiceExtension.start(LiferayServiceExtender.java:148)
at com.liferay.portal.spring.extender.internal.LiferayServiceExtender.addingBundle(LiferayServiceExtender.java:83)
at com.liferay.portal.spring.extender.internal.LiferayServiceExtender.addingBundle(LiferayServiceExtender.java:61)
at org.osgi.util.tracker.BundleTracker$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 org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:447)
at org.eclipse.equinox.console.commands.EquinoxCommandProvider.start(EquinoxCommandProvider.java:243)
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:498)
at org.apache.felix.gogo.runtime.Reflective.invoke(Reflective.java:139)
at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:91)
at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:599)
at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:526)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:415)
at org.apache.felix.gogo.runtime.Pipe.doCall(Pipe.java:416)
at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:229)
at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:59)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: PhishRodLab.db.model.impl.Customer_PreferencesImpl
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:200)
at org.hibernate.mapping.PersistentClass.getMappedClass(PersistentClass.java:122)
... 49 more

I've encountered that error when migrating from previous versions when the DTD of the service.xml file is not the right one. You must make sure you are using the latest version available for the version you are using (7.3 in this case).
For example, the header of the service.xml file should start like this:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE service-builder PUBLIC "-//Liferay//DTD Service Builder 7.3.0//EN" "http://www.liferay.com/dtd/liferay-service-builder_7_3_0.dtd">
<service-builder...>
The best option is to generate a test servicebuilder project using the tutorial, and then compare the generated code with yours, making note of the differences.
More info: https://help.liferay.com/hc/es/articles/360029028211-Introduction-to-Service-Builder

JBoss Wildfly 9.0 ArrayIndexOutOfBoundException [asm 3.1]

While deploying war in JBoss getting below exception: Using asm3.1 jar
I've verified this on google. But I didn't get much info. It said that check asm jar dependency with java8 version and I've tried updating asm latest builds also after updating latest builds (asm 5.0.3 or later) I got another error as incompatibleclasschangeerror
java.lang.ArrayIndexOutOfBoundsException: 9578
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:85)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
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)
at org.jboss.threads.JBossThread.run(JBossThread.java:320) Caused by: java.lang.ArrayIndexOutOfBoundsException: 9578
at org.objectweb.asm.ClassReader.readClass(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at com.sun.jersey.spi.scanning.AnnotationScannerListener.onProcess(AnnotationScannerListener.java:133)
at com.sun.jersey.core.spi.scanning.JarFileScanner.scan(JarFileScanner.java:97)
at com.sun.jersey.spi.scanning.WebAppResourcesScanner$1.f(WebAppResourcesScanner.java:94)

I've removed the lambda dependency from my application and verified it. It is working fine. (asm 3.1, JBoss wildfly 9.0, Java 1.8).

tomee won't start from within eclipse

I installed apache-tomee-plume-7.1.0 from https://tomee.apache.org/
I installed eclipse-jee from https://www.eclipse.org/ using the installation tool.
In eclipse I added a new tomcat v8.5 server since eclipse told me that was the installed version.
When starting the server from within eclipse, I get an error-message like this:
'Starting tomcat v8.5 Server at localhost' has encountered a problem.
Server Tomcat v8.5 Server at localhost failed to start.
In the console it says:
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:941)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1421)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1411)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
... 6 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.apache.openejb.util.proxy.LocalBeanProxyFactory$Unsafe
at org.apache.openejb.util.proxy.LocalBeanProxyFactory.createProxy(LocalBeanProxyFactory.java:137)
at org.apache.openejb.util.proxy.LocalBeanProxyFactory.createProxy(LocalBeanProxyFactory.java:147)
at org.apache.tomee.catalina.TomcatWebAppBuilder.eagerInitOfLocalBeanProxies(TomcatWebAppBuilder.java:1563)
at org.apache.tomee.catalina.TomcatWebAppBuilder.startInternal(TomcatWebAppBuilder.java:1309)
at org.apache.tomee.catalina.TomcatWebAppBuilder.configureStart(TomcatWebAppBuilder.java:1125)
at org.apache.tomee.catalina.GlobalListenerSupport.lifecycleEvent(GlobalListenerSupport.java:133)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 6 more
There are some more errors but I think the NoClassDefFoundError might be the main problem... am I right?
Any help is appreciated.

I ended up using another version of tomee.
Switched to version: apache-tomee-plume-8.0.0-M3
This solved my issues.

Both version of TomEE, witch is Apache TomEE plume 8.0.0-M3 and Apache Tomee plume 7.1.0, it seems to run without error, both started from prompt and also from Eclipse plugin. However try to unpacked them in an directory whose name does not contain the space character.

java.lang.ClassNotFoundException: org.apache.commons.fileupload.FileItemFactory [duplicate]

This question already has answers here:
java.lang.ClassNotFoundException: org.apache.commons.fileupload.FileItemFactory
(2 answers)
Closed 6 years ago.
I have followed this tutorial for using servlet for file upload.
Here is the folder structure (Dynamic project created using Eclipse). I am NOT using maven for this simple project. I added the external jar to the build path.
when I start Tomcat and deploy this application by right-clicking on the project in Eclipse > Run on Server I get
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/fileupload/FileItemFactory
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2499)
at java.lang.Class.getDeclaredFields(Class.java:1811)
at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:106)
at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:270)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:139)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:65)
at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:415)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:892)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:386)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5380)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 6 more
Caused by: java.lang.ClassNotFoundException: org.apache.commons.fileupload.FileItemFactory
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
... 20 more
please help me with what is going wrong here and how to fix this?

You need to copy the required commons jars into your /WEB-INF/lib folder as well.
commons-io-2.4.jar
commons-fileupload-1.3.1.jar
The reason is that just adding the jar dependencies to your Eclipse project's build path does not make them automatically available on Tomcat. Since, the dependencies are missing (not found in the lib folder) your web app's deployment fails.

Tomcat errors when executing tutorial

I was executing the code from the tuorial from http://viralpatel.net/blogs/tutorial-create-struts-2-application-eclipse-example/ and I am getting the following errors
janv. 09, 2014 11:20:02 AM org.apache.struts2.dispatcher.Dispatcher error
Grave: Dispatcher initialization failed
Unable to load configuration. - bean - jar:file:/K:/sop/java/code/.
metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/StrutsHelloWorld/W
EB-INF/lib/struts2-core-2.3.16.jar!/struts-default.xml:64:179
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(Configu
rationManager.java:70)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatche
r.java:445)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:489)
at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperation
s.java:74)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(S
trutsPrepareAndExecuteFilter.java:57)
at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilte
rConfig.java:281)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilter
Config.java:262)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterCon
fig.java:107)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:47
75)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:
5452)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:15
59)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:15
49)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: Unable to load bean: type:org.apache.struts2.dispatcher.multipart.Mul
tiPartRequest class:org.apache.struts2.dispatcher.multipart.JakartaMultiPartRequ
est - bean - jar:file:/K:/sop/java/code/.metadata/.plugins/org.ecli
pse.wst.server.core/tmp0/wtpwebapps/StrutsHelloWorld/WEB-INF/lib/struts2-core-2.
3.16.jar!/struts-default.xml:64:179
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(X
mlConfigurationProvider.java:245)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlC
onfigurationProvider.java:102)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(Def
aultConfiguration.java:234)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(Configu
rationManager.java:67)
... 16 more
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/fileupload/FileUpl
oadBase$SizeLimitExceededException
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getDeclaredConstructors(Unknown Source)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(X
mlConfigurationProvider.java:235)
... 19 more
Caused by: java.lang.ClassNotFoundException: org.apache.commons.fileupload.FileU
ploadBase$SizeLimitExceededException
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1702)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
a:1547)
... 23 more
The jars that I use are:
commons-logging-1.1.3.jar
commons-lang3-3.1.jar
commons-logging-1.1.3.jar
freemaker-2.3.19.jar
javassist-3.11.0.GA.jar
ongl-3.0.6.jar
struts2-core-2.3.16.jar
xwork-core-2.3.16.jar
Can someone tell me what am I wrong? Is the Tomcat server? Is the code?
Another problem is that I was trying more tutorials on the internet and every time I get errors when applying struts2 to the web page. Can someone tell me What am I missing with Tomcat?
P.S. I am using Eclipse kepler, Could it be it th problem?

Javassist library is missing. You can download it from maven below is the link. This is mentioned in the exception itself :)
http://mvnrepository.com/artifact/javassist/javassist