Develop Reference

Webapp deployment fails with interface not visible from class loader exception

I have a fresh weblogic 12c server where I was trying to deploy a spring hibernate based Webapp and the deployment is failing with following exception:
<Mar 13, 2019 12:58:51,096 PM IST> <Error> <Deployer> <BEA-149265> <Failure occurred in the execution of deployment request with ID "346350192983496" for task "0" on [partition-name: DOMAIN]. Error is: "weblogic.application.ModuleException: java.lang.IllegalArgumentException: interface javax.persistence.EntityManagerFactory is not visible from class loader"
weblogic.application.ModuleException: java.lang.IllegalArgumentException: interface javax.persistence.EntityManagerFactory is not visible from class loader
at weblogic.application.internal.ExtensibleModuleWrapper.prepare(ExtensibleModuleWrapper.java:114)
at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:100)
at weblogic.application.internal.flow.ModuleStateDriver$1.next(ModuleStateDriver.java:192)
at weblogic.application.internal.flow.ModuleStateDriver$1.next(ModuleStateDriver.java:187)
at weblogic.application.utils.StateMachineDriver$ParallelChange.run(StateMachineDriver.java:83)
Truncated. see log file for complete stacktrace
Caused By: java.lang.IllegalArgumentException: interface javax.persistence.EntityManagerFactory is not visible from class loader
at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:581)
at java.lang.reflect.Proxy$ProxyClassFactory.apply(Proxy.java:557)
at java.lang.reflect.WeakCache$Factory.get(WeakCache.java:230)
at java.lang.reflect.WeakCache.get(WeakCache.java:127)
at java.lang.reflect.Proxy.getProxyClass0(Proxy.java:419)
Truncated. see log file for complete stacktrace
I am using java 8 based web application, here are the versions of the different solutions/ libraries:
Weblogic : 12.2.1.3.0 spring: 5.0.6 hibernate: 5.1.0
weblogic.xml:
<weblogic-web-app xmlns:wls="http://xmlns.oracle.com/weblogic/weblogic-web-app"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd http://xmlns.oracle.com/weblogic/weblogic-web-app http://xmlns.oracle.com/weblogic/weblogic-web-app/1.4/weblogic-web-app.xsd">
<context-root>/iamws/adc</context-root>
<wls:container-descriptor>
<wls:prefer-web-inf-classes>false</wls:prefer-web-inf-classes>
<wls:prefer-application-packages>
<wls:package-name>org.springframework.*</wls:package-name>
<wls:package-name>org.joda.*</wls:package-name>
<wls:package-name>com.sun.activation.*</wls:package-name>
<wls:package-name>javax.activation.*</wls:package-name>
<wls:package-name>com.sun.mail.*</wls:package-name>
<wls:package-name>javax.mail.*</wls:package-name>
<wls:package-name>org.slf4j.*</wls:package-name>
<wls:package-name>org.jboss.*</wls:package-name>
<wls:package-name>org.apache.log4j.*</wls:package-name>
<wls:package-name>javax.persistence.*</wls:package-name>
</wls:prefer-application-packages>
</wls:container-descriptor>
</weblogic-web-app>

I was able to solve this by adding following to weblogic.xml:
<wls:package-name>org.hibernate.*</wls:package-name>

MyFaces basic project won't start

I'm trying to launch a very basic project found here:
The HelloWorld example of JSF 2.2 with Myfaces
Just cloned the git from here.
Now, I've tried different approach but just can't amend the JSF Mojarra co-existence in my App Server, since I think that this problem:
<27-ott-2018 23.44.46,046 CEST> <Error> <Deployer> <BEA-149202> <Encountered an exception while attempting to commit the 9 task for the application "jsf_myfaces" on [partition-name: DOMAIN].>
<27-ott-2018 23.44.46,048 CEST> <Warning> <Deployer> <BEA-149004> <Failures were detected while initiating deploy task for application "jsf_myfaces".>
<27-ott-2018 23.44.46,048 CEST> <Warning> <Deployer> <BEA-149078> <Stack trace for message 149004
weblogic.application.ModuleException: java.lang.IllegalStateException: Could not find backup for factory javax.faces.application.ApplicationFactory.
at weblogic.application.internal.ExtensibleModuleWrapper.start(ExtensibleModuleWrapper.java:140)
at weblogic.application.internal.flow.ModuleListenerInvoker.start(ModuleListenerInvoker.java:124)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:233)
at weblogic.application.internal.flow.ModuleStateDriver$3.next(ModuleStateDriver.java:228)
at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:45)
Truncated. see log file for complete stacktrace
Caused By: java.lang.IllegalStateException: Could not find backup for factory javax.faces.application.ApplicationFactory.
at javax.faces.FactoryFinderInstance.getFactory(FactoryFinderInstance.java:561)
at javax.faces.FactoryFinder.getFactory(FactoryFinder.java:283)
at org.apache.myfaces.context.servlet.FacesContextImplBase.getApplication(FacesContextImplBase.java:169)
at org.apache.myfaces.context.servlet.FacesContextImplBase.getELContext(FacesContextImplBase.java:231)
at javax.faces.component.UIViewRoot.setLocale(UIViewRoot.java:1488)
Truncated. see log file for complete stacktrace
Is just related to that.
Tried JBoss Wildfly 8.2 and Weblogic 12c R2, same story.

This was the correct way to start the project keeping myfaces dependencies jars in front of the ones in the server container:
weblogic-prefer-application-packages-not-working
Probably a simple deployment-descriptor for JBoss would accomplish the same task.

IntelliJ IDEA + Tomee 1.7.1 - Bean Manager not found error

I'm getting a strange error when starting up tomee in IntelliJ and deploying my web app (as war). I'm not referencing any bean manager or weld classes in my pom.xml file and so far this is just a "bare bones" web application that I'm using to try out TomEE and do a bit of fun stuff with it (hopefully) - but this error is blocking me - any help would be appreciated. Thanks
Mar 24, 2015 10:55:32 PM org.apache.tomee.catalina.TomcatResourceFactory create
SEVERE: Can't create resource BeanManager
java.lang.ClassNotFoundException: org.jboss.weld.resources.ManagerObjectFactory
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
at org.apache.tomee.catalina.LazyStopWebappClassLoader.loadClass(LazyStopWebappClassLoader.java:129)
at org.apache.tomee.catalina.TomcatResourceFactory.create(TomcatResourceFactory.java:68)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

how to install missing jars in eclipse for aws sdk with SES service

I added maven set up to my eclipse project and I am able to see the lib in my target folder,
I referred the AWS SES docs to send mail using API . I wont see any complation error but when I try to send mail usig AWS SES API I am getting class not found exception .
java.lang.ClassNotFoundException: org.apache.http.pool.ConnPoolControl
After searching on google I added jars (both with mavan and Java build path ) ,Both of the ways doesnt work out.
I am unable to find out the exact problem .
my maven code includes .
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>1.8.9.1</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-hal-client-java</artifactId>
<version>1.1.1</version>
</dependency>
I can able import all class specified in doc,but whenever i call email sending method I getting class not found exception .
I have
1.Eclipse Helios
2. Spring-hibernate project
3.Maven 2
and I have access and secret key for AWS set up
Please some one help me out .
I encountered the following error:
Sep 01, 2014 4:18:30 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [spring] in context with path [/peer] threw exception [Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/http/pool/ConnPoolControl] with root cause
java.lang.ClassNotFoundException: org.apache.http.pool.ConnPoolControl
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1713)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1558)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:792)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2888)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1172)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1558)
at com.amazonaws.http.ConnectionManagerFactory.createPoolingClientConnManager(ConnectionManagerFactory.java:29)
at com.amazonaws.http.HttpClientFactory.createHttpClient(HttpClientFactory.java:97)
at com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:181)
at com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:119)
at com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:103)
at com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient.<init>(AmazonSimpleEmailServiceClient.java:142)
at com.amazonaws.services.simpleemail.AmazonSimpleEmailServiceClient.<init>(AmazonSimpleEmailServiceClient.java:123)

Where do I have to place the JDBC driver for Tomcat's connection pool?

So I've figured out my error, now I'm just looking for some insight as to what is going on exactly. I am using Apache Tomcat Version 7.0.32. I am using this tutorial to set up pooling for JDBC. In my META-INF folder I made a context.xml file and put this in there.
<?xml version="1.0" encoding="UTF-8"?>
<Context>
<Resource type="javax.sql.DataSource" name="jdbc/gmustudent"
factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost:3306/official"
username="root" password="root"
maxActive="100" maxIdle="20" minIdle="15" initialSize="15" maxWait="10000" />
</Context>
I got this error when I wrote this
WARNING: Unexpected exception resolving reference
java.sql.SQLException: com.mysql.jdbc.Driver
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:254)
at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:182)
at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:699)
at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:631)
at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:485)
at org.apache.tomcat.jdbc.pool.ConnectionPool.<init>(ConnectionPool.java:143)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:116)
at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:103)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.createDataSource(DataSourceFactory.java:539)
at org.apache.tomcat.jdbc.pool.DataSourceFactory.getObjectInstance(DataSourceFactory.java:237)
at org.apache.naming.factory.ResourceFactory.getObjectInstance(ResourceFactory.java:143)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)
at org.apache.naming.NamingContext.lookup(NamingContext.java:843)
at org.apache.naming.NamingContext.lookup(NamingContext.java:154)
at org.apache.naming.NamingContext.lookup(NamingContext.java:831)
at org.apache.naming.NamingContext.lookup(NamingContext.java:168)
at org.apache.catalina.core.NamingContextListener.addResource(NamingContextListener.java:1061)
at org.apache.catalina.core.NamingContextListener.createNamingContext(NamingContextListener.java:671)
at org.apache.catalina.core.NamingContextListener.lifecycleEvent(NamingContextListener.java:270)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5173)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:246)
... 29 more
Oct 31, 2012 11:23:25 AM org.apache.catalina.core.NamingContextListener addResource
WARNING: Failed to register in JMX: javax.naming.NamingException: com.mysql.jdbc.Driver
Oct 31, 2012 11:23:25 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8086"]
Oct 31, 2012 11:23:25 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Oct 31, 2012 11:23:25 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 794 ms
This error only comes up when I have this statement in my context.xml file. When I remove it no error.
factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
The reason I want to make sure that I have it is because in the apache tomcat tutorial it says
factory is required, and the value should be org.apache.tomcat.jdbc.pool.DataSourceFactory
So then I did a little bit of research on SO and found a post saying that you need to add this jar to your lib folder if you have an older version of tomcat. So I added the jar and now it works but I would like to have some information as to what on earth is going on because I am using the newest tomcat version. So why when I specify a factory do I get an error. And what is this jar that I'm adding in and why is there very little documentation about it? Any information about what is going on here would be greatly appreciated.

The JDBC driver has to be visible to the same classloader as the data source factory itself. The data source factory library is placed in Tomcat's own /lib folder and thus loaded by Tomcat's "common" classloader.
Your problem sounds much like that you dropped the JDBC driver in webapp's /WEB-INF/lib. The webapp's /WEB-INF/lib is invisible to the "common" classloader. So technically, you have to place the JDBC driver in Tomcat's own /lib folder (or, at least, in a configurable path as specified by common.loader setting in /conf/catalina.properties) in order to make it visible to the data source factory.
Or, as you attempted, copying the data source factory into /WEB-INF/lib will also fix it. The webapp's /WEB-INF/lib has namely higher precedence in classloading than Tomcat's /lib folder. So if the data source factory is found in /WEB-INF/lib, it will be loaded from there. As the JDBC driver is also there, it will be seen. This is however not the right solution to your concrete problem, this is more a workaround, so you shouldn't do this.
There isn't exactly documentation which is specifically targeted to this issue. The Tomcat Class Loader HOW-TO will however help in understanding the class loading hierarchy in Tomcat.
See also:
The infamous java.sql.SQLException: No suitable driver found
How should I connect to JDBC database / datasource in a servlet based application?
Is it safe to use a static java.sql.Connection instance in a multithreaded system?

I had the same problem, your solution didn't work for me.
I had to add the 'mysql-connector-java-5.1.30-bin.jar' file to my lib folder for it to work, since i was using that driver :)
Cheers.