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CXF Restful Tutorial

By admin February 01, 2012 cxf, rest, webservice, 27 Comments

CXF Restful Tutorial explains step by step details of Creating / Developing Java rest Web services using Apache CXF, Spring and Eclipse

JAX-RS is Java API for RESTful Webservices which is very rely upon Representational State Transfer model, you can view JAX-RS specification 

JAX-RS uses annotations for simplifying the development efforts.

Now a days more & more deployment is going based on restful services compare to WSDL Webservices, due to the weights towards the simplicity of configuration

You can see the below example, which is demonstrating How to create a Restful service using CXF

Note

You can also find tutorial about CXF With Jackson

Required Libraries

You need to download

  1. JDK 7
  2. Eclipse 4.2
  3. CXF-2.7.3
  4. Tomcat 7

Following jar must be in classpath

  1. commons-logging-1.1.1.jar
  2. cxf-2.7.3.jar
  3. httpasyncclient-4.0-beta3.jar
  4. httpclient-4.2.1.jar
  5. httpcore-4.2.2.jar
  6. httpcore-nio-4.2.2.jar
  7. neethi-3.0.2.jar
  8. spring-aop-3.0.7.RELEASE.jar
  9. spring-asm-3.0.7.RELEASE.jar
  10. spring-beans-3.0.7.RELEASE.jar
  11. spring-context-3.0.7.RELEASE.jar
  12. spring-core-3.0.7.RELEASE.jar
  13. spring-expression-3.0.7.RELEASE.jar
  14. spring-web-3.0.7.RELEASE.jar
  15. wsdl4j-1.6.2.jar
  16. jaxb-impl-2.2.6.jar
  17. javax.ws.rs-api-2.0-m10.jar
  18. xmlschema-core-2.0.3.jar
  19. jettison-1.3.3.jar (JSON library)

CXF Restful Tutorial

I am creating a sample restful service project that pass Student object and return with some changes on that object. The service is using simple POJO (Plain Old Java Object) bean.

Firstly create a Dynamic Web Project (File->New->Dynamic Web Project) named "CXFRestfulTutorial" according to following screenshot

Create CXF Project CXF Restful Tutorial

Create a Student Object

package com.student;

import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "Student")
public class Student {
  private String name;

  public String getName() {
    return name;
  }

  public void setName(String name) {
    this.name = name;
  }

}
Here @XmlRootElement(name = "Student"), is a JAXB convension specifies that Student is XML document.

If you are specifies that @Produces("application/json") then Jettison library converts the JAXB to json text as response




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27 Responses to "CXF Restful Tutorial"
  1. Yevgeny Vasilyev 2012-01-02 07:26:05.0 
    Could you upload WAR?
I have no errors on application startup, but WADL not displayed too :(
  1. admin 2012-01-03 07:26:05.0 
    If there is no errors on console, restful service is successfully deployed, 
you need to manually append '?_wadl' at the end of the URL so it will become http://localhost:8080/CXFRestfulTutorial/?_wadl 

Finding all the deployed services you need to append 'services' at the end of the URL so it will become 
http://localhost:8080/CXFRestfulTutorial/services
After this, you are still getting the problem, i will upload the WAR ( currently I don't have the war)
  1. pep 2012-01-04 07:26:05.0 
    i have an error for the CXF.xml :

GRAVE: Context initialization failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'base': Invocation of init method failed; nested exception is org.apache.cxf.service.factory.ServiceConstructionException



i miss something ?
  1. admin 2012-01-05 07:26:05.0 
    I have deployed with the same code, and I could not find any exception. I have uploaded the war file, please check this link & compare with your code

http://www.javatips.net/static/downloads/CXFRestfulTutorial.war
  1. Sony 2012-01-06 07:26:05.0 
    I have deployed CXF Restful Tutorial successfully
You have made my day, Thanks for the article
  1. Julien 2012-01-07 07:26:05.0 
    Hello,

I got the same error as pep

Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'base': Invocation of init method failed; nested exception is org.apache.cxf.service.factory.ServiceConstructionException

Did you find any solution?

PS: the war file is no longer available
  1. admin 2012-01-08 07:26:05.0 
    @Julien, which version are you using, You are not mentioned about which version you are using, I have created with latest CXF release
  1. Ruchika 2012-01-09 07:26:05.0 
    I am trying to run the CXF (2.7.3) with Spring (3.2.1-Release) and I am not able to get the JSON Object in the response. I always gets the "No message body writer has been found for response". It is working okay if expect the XML back.
  1. admin 2012-01-11 07:26:05.0 
    @Ruchika
Honestly I am not go through any exception as you mentioned, that's why I am helpless, Anyway you can download the war from following location,
http://www.javatips.net/static/downloads/CXFRestfulTutorial.war, this war contains the source code too, so you can extract and check with your settings
Also You need http://www.javatips.net/blog/cxf-restful-client in order to invoke this restful service
  1. steve 2012-01-12 07:26:05.0 
    @Julien

that may be your jdk is 6.
  1. steve 2012-01-13 07:26:05.0 
    to admin

I also have same problem like Julien.
would you please tell me how to do ?

18-Apr-2013 09:24:53 org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.6.0_17\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre7/bin/client;C:/Program Files/Java/jre7/bin;C:/Program Files/Java/jre7/lib/i386;C:\XEClient\bin;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files\Intel\iCLS Client\;C:\Program Files\AMD APP\bin\x86;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Common Files\Lenovo;C:\Program Files\Windows Live\Shared;C:\SWTOOLS\ReadyApps;C:\Program Files\Gemalto\Classic Client\BIN;C:\Program Files\TortoiseSVN\bin;D:\eclipse;
18-Apr-2013 09:24:53 org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:CXFRestfulTutorial' did not find a matching property.
18-Apr-2013 09:24:53 org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
18-Apr-2013 09:24:53 org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
18-Apr-2013 09:24:53 org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 246 ms
18-Apr-2013 09:24:53 org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
18-Apr-2013 09:24:53 org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.37
18-Apr-2013 09:24:54 org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(D:\eclipse\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\CXFRestfulTutorial\WEB-INF\lib\geronimo-servlet_3.0_spec-1.0.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
18-Apr-2013 09:24:55 org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
18-Apr-2013 09:24:55 org.springframework.web.context.ContextLoader initWebApplicationContext
INFO: Root WebApplicationContext: initialization started
18-Apr-2013 09:24:55 org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing Root WebApplicationContext: startup date [Thu Apr 18 09:24:55 CST 2013]; root of context hierarchy
18-Apr-2013 09:24:55 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/cxf.xml]
18-Apr-2013 09:24:55 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [META-INF/cxf/cxf.xml]
18-Apr-2013 09:24:55 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@ee260b: defining beans [cxf,org.apache.cxf.bus.spring.BusWiringBeanFactoryPostProcessor,org.apache.cxf.bus.spring.Jsr250BeanPostProcessor,org.apache.cxf.bus.spring.BusExtensionPostProcessor,base,StudentService]; root of factory hierarchy
18-Apr-2013 09:24:56 org.apache.cxf.endpoint.ServerImpl initDestination
INFO: Setting the server's publish address to be /rest
18-Apr-2013 09:24:56 org.apache.cxf.service.factory.ReflectionServiceFactoryBean buildServiceFromWSDL
INFO: Creating Service {http://docs.oasis-open.org/ws-dd/ns/discovery/2009/01}Discovery from WSDL: classpath:/org/apache/cxf/ws/discovery/wsdl/wsdd-discovery-1.1-wsdl-os.wsdl
18-Apr-2013 09:24:56 org.apache.cxf.endpoint.ServerImpl initDestination
INFO: Setting the server's publish address to be soap.udp://239.255.255.250:3702
18-Apr-2013 09:24:56 org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons
INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@ee260b: defining beans [cxf,org.apache.cxf.bus.spring.BusWiringBeanFactoryPostProcessor,org.apache.cxf.bus.spring.Jsr250BeanPostProcessor,org.apache.cxf.bus.spring.BusExtensionPostProcessor,base,StudentService]; root of factory hierarchy
18-Apr-2013 09:24:56 org.springframework.web.context.ContextLoader initWebApplicationContext
SEVERE: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'base': Invocation of init method failed; nested exception is org.apache.cxf.service.factory.ServiceConstructionException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1422)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:518)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:455)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:282)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:204)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5291)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$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:619)
Caused by: org.apache.cxf.service.factory.ServiceConstructionException
at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.create(JAXRSServerFactoryBean.java:201)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1546)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1487)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1419)
... 22 more
Caused by: java.lang.NullPointerException
at org.apache.cxf.ws.discovery.internal.WSDiscoveryServiceImpl.serverStarted(WSDiscoveryServiceImpl.java:126)
at org.apache.cxf.ws.discovery.listeners.WSDiscoveryServerListener.startServer(WSDiscoveryServerListener.java:72)
at org.apache.cxf.bus.managers.ServerLifeCycleManagerImpl.startServer(ServerLifeCycleManagerImpl.java:61)
at org.apache.cxf.endpoint.ServerImpl.start(ServerImpl.java:146)
at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.create(JAXRSServerFactoryBean.java:192)
... 29 more
18-Apr-2013 09:24:56 org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'base': Invocation of init method failed; nested exception is org.apache.cxf.service.factory.ServiceConstructionException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1422)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:518)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:455)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:282)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:204)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5291)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$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:619)
Caused by: org.apache.cxf.service.factory.ServiceConstructionException
at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.create(JAXRSServerFactoryBean.java:201)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1546)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1487)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1419)
... 22 more
Caused by: java.lang.NullPointerException
at org.apache.cxf.ws.discovery.internal.WSDiscoveryServiceImpl.serverStarted(WSDiscoveryServiceImpl.java:126)
at org.apache.cxf.ws.discovery.listeners.WSDiscoveryServerListener.startServer(WSDiscoveryServerListener.java:72)
at org.apache.cxf.bus.managers.ServerLifeCycleManagerImpl.startServer(ServerLifeCycleManagerImpl.java:61)
at org.apache.cxf.endpoint.ServerImpl.start(ServerImpl.java:146)
at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.create(JAXRSServerFactoryBean.java:192)
... 29 more
18-Apr-2013 09:24:56 org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
18-Apr-2013 09:24:56 org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/CXFRestfulTutorial] startup failed due to previous errors
18-Apr-2013 09:24:56 org.apache.catalina.core.ApplicationContext log
INFO: Closing Spring root WebApplicationContext
18-Apr-2013 09:24:56 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/CXFRestfulTutorial] appears to have started a thread named [default-workqueue-1] but has failed to stop it. This is very likely to create a memory leak.
18-Apr-2013 09:24:56 org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [/CXFRestfulTutorial] created a ThreadLocal with key of type [com.sun.xml.bind.v2.ClassFactory$1] (value [com.sun.xml.bind.v2.ClassFactory$1@1927275]) and a value of type [java.util.WeakHashMap] (value [{class javax.xml.bind.annotation.W3CDomHandler=java.lang.ref.WeakReference@1987298}]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
18-Apr-2013 09:24:56 org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
18-Apr-2013 09:24:56 org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
18-Apr-2013 09:24:56 org.apache.catalina.startup.Catalina start
INFO: Server startup in 2904 ms
  1. admin 2012-01-14 07:26:05.0 
    @steve

You can download the war from following location,
http://www.javatips.net/static/downloads/CXFRestfulTutorial.war, this war contains the source code too, so you can extract and check with your settings
  1. Madusha 2012-01-15 07:26:05.0 
    Awesome. Thank you so much for the post. It helped me.
I too had that same error. Only after importing your .war file I understood that it works only if we keep only the necessary jar files. Otherwise if we put all the jar files provided in CXF-2.7.3 lib folder to the lib folder in web-Inf it wont work and above error will pop-out. If we keep only the below list of jars in the Web-Inf lib folder it worked swiftly like a charm.

commons-logging-1.1.1.jar
cxf-2.7.3.jar
httpasyncclient-4.0-beta3.jar
httpclient-4.2.1.jar
httpcore-4.2.2.jar
httpcore-nio-4.2.2.jar
javax.ws.rs-api-2.0-m10.jar
jaxb-impl-2.2.6.jar
jettison-1.3.3.jar
neethi-3.0.2.jar
spring-aop-3.0.7.RELEASE.jar
spring-asm-3.0.7.RELEASE.jar
spring-beans-3.0.7.RELEASE.jar
spring-context-3.0.7.RELEASE.jar
spring-core-3.0.7.RELEASE.jar
spring-expression-3.0.7.RELEASE.jar
spring-web-3.0.7.RELEASE.jar
wsdl4j-1.6.2.jar
xmlschema-core-2.0.3.jar
  1. admin 2012-01-16 07:26:05.0 
    @Madusha,
Thanks for your feedback,
  1. Deepak 2012-01-17 07:26:05.0 
    It would be more beautiful if have provided POM.xml or source code to download with tutorial.
  1. admin 2012-01-18 07:26:05.0 
    @Deepak

You can download the war from following location,
http://www.javatips.net/static/downloads/CXFRestfulTutorial.war, this war contains the source code too
  1. bibhu 2012-01-19 07:26:05.0 
    I'm getting the error messeage
"No message body writer has been found for response class Student."
when tried to invoke getName method from browser.... plz help me.....
  1. admin 2012-01-20 07:26:05.0 
    @bibhu,

Please check thsi link to fixing "No message body writer has been found for response class" issue

http://stackoverflow.com/questions/11978855/no-message-body-writer-has-been-found-for-response-class-myexception
  1. Ram 2012-01-21 07:26:05.0 
    [org.springframework.web.context.ContextLoader] (ServerService Thread Pool -- 49) Context initialization failed: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from URL location [classpath:META-INF/cxf/cxf.xml]

getting this exception , I'm I missing any jar ?
  1. admin 2012-01-22 07:26:05.0 
    Hi Ram,

I think in your classpath, the JAR containing the cxf namespace is missing, Try to add it to your classpath.
  1. madhu 2012-01-23 07:26:05.0 
    Hi,

I am new to apache cxf and tried the above example getting the below error

SEVERE: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cxf' defined in class path resource [META-INF/cxf/cxf.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.apache.cxf.bus.spring.SpringBus]: Constructor threw exception; nested exception is org.apache.cxf.bus.extension.ExtensionException: Could not load extension class org.apache.cxf.ws.policy.PolicyBuilderImpl.

similar to the one posted above i am not able to follow your solution I have placed all the jars mentioned i'm using apache cxf 2.7.13, am i missing anything.
  1. admin 2012-01-24 07:26:05.0 
    @madhu,

Could you post complete stack trace & which server you are deploying the application?
  1. madhu 2012-01-25 07:26:05.0 
    Thank you for your reply

Below is the stack trace and i have deployed the application on tomcat 7.0.47

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cxf' defined in class path resource [META-INF/cxf/cxf.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.apache.cxf.bus.spring.SpringBus]: Constructor threw exception; nested exception is org.apache.cxf.bus.extension.ExtensionException: Could not load extension class org.apache.cxf.ws.policy.PolicyBuilderImpl.
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:964)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:910)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:484)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:455)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:282)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:204)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.apache.cxf.bus.spring.SpringBus]: Constructor threw exception; nested exception is org.apache.cxf.bus.extension.ExtensionException: Could not load extension class org.apache.cxf.ws.policy.PolicyBuilderImpl.
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:141)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:74)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:957)
... 22 more
Caused by: org.apache.cxf.bus.extension.ExtensionException: Could not load extension class org.apache.cxf.ws.policy.PolicyBuilderImpl.
at org.apache.cxf.bus.extension.Extension.tryClass(Extension.java:183)
at org.apache.cxf.bus.extension.Extension.getClassObject(Extension.java:199)
at org.apache.cxf.bus.extension.ExtensionManagerImpl.activateAllByType(ExtensionManagerImpl.java:141)
at org.apache.cxf.bus.extension.ExtensionManagerBus.<init>(ExtensionManagerBus.java:126)
at org.apache.cxf.bus.extension.ExtensionManagerBus.<init>(ExtensionManagerBus.java:138)
at org.apache.cxf.bus.spring.SpringBus.<init>(SpringBus.java:46)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:126)
... 24 more
Caused by: java.lang.NoClassDefFoundError: org/apache/neethi/PolicyBuilder
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2918)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1174)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1669)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
at org.apache.cxf.bus.extension.Extension.tryClass(Extension.java:164)
... 34 more
Caused by: java.lang.ClassNotFoundException: org.apache.neethi.PolicyBuilder
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
... 42 more
  1. admin 2012-01-26 07:26:05.0 
    @Madhu,

As from the stack trace, I can see that you are using an old version of neethi.jar which does not contain PolicyBuilder.class
So you need to use a compatible version of neethi.jar. It is already available with CXF 2.7.13 package (http://www.apache.org/dyn/closer.cgi?path=/cxf/2.7.13/apache-cxf-2.7.13.zip)
  1. madhu 2012-01-27 07:26:05.0 
    Thank you it worked after changing the jar
  1. terry 2012-01-28 07:26:05.0 
    hello！ I have a problem：i define a URL end with "services"，like ‘/agent/cluster/services’，when i request the path “/agent/cluster/services”， cxf dose not access into the interface of “/agent/cluster/services”，it just lists：available soap/restful services. can you help me ?
  1. Shailendra 2012-01-29 07:26:05.0 
    Thanks for the great post. As pointed out by Madusha, I just removed all the unnecessary CXF Jars from my Web-Inf/lib and just kept the relevant ones.
And Tomcat started without errors ... Great !

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