Connecting to exported Hessian service

[mkaupp]

Hi all,

I try to get a connection to a hessian service exported by the liferay portal. The use a Subclass of DispatcherServlet called RemotingServlet.

In the remoting-servlet.xml there is an entry:
<bean name="/com_liferay_portal_service_spring_UserService-hessian" class="org.springframework.remoting.caucho.Hessian ServiceExporter">
<property name="service" ref="com.liferay.portal.service.spring.UserService .professional" />
<property name="serviceInterface" value="com.liferay.portal.service.spring.UserServi ce" />
</bean>
---------------
And in the web.xml there is an entry:
<servlet-mapping>
<servlet-name>RemotingServlet</servlet-name>
<url-pattern>/remoting/*</url-pattern>
</servlet-mapping>

I try to connect the exported service with the following code:
...
HessianProxyFactory factory = new HessianProxyFactory();
String userServiceUrl = "http://localhost/remoting/com_liferay_portal_service_spring_UserService-hessian";

UserService userService = (UserService) factory.create(com.liferay.portal.service.spring.U serService.class, userServiceUrl);

When I execute it, I get this exception stack:

java.lang.NoClassDefFoundError: org/apache/commons/lang/exception/NestableException
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :539)
at java.security.SecureClassLoader.defineClass(Secure ClassLoader.java:123)
at java.net.URLClassLoader.defineClass(URLClassLoader .java:251)
at java.net.URLClassLoader.access$100(URLClassLoader. java:55)
at java.net.URLClassLoader$1.run(URLClassLoader.java: 194)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:187)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 89)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:274)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 35)
at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:302)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.ja va:1655)
at java.lang.Class.privateGetPublicMethods(Class.java :1778)
at java.lang.Class.getMethods(Class.java:832)
at sun.misc.ProxyGenerator.generateClassFile(ProxyGen erator.java:173)
at sun.misc.ProxyGenerator.generateProxyClass(ProxyGe nerator.java:74)
at java.lang.reflect.Proxy.getProxyClass(Proxy.java:4 72)
at java.lang.reflect.Proxy.newProxyInstance(Proxy.jav a:552)
at com.caucho.hessian.client.HessianProxyFactory.crea te(HessianProxyFactory.java:203)
...

Could you tell me what is wrong with that code? Am I using a wrong url?

Looking forward to hearing from you.

Markus

[loneboy62]

Please check whether <common-lang.jar> is in your classpath. Perhaps you can paste the whole log and easy to trace of the actual error, thanks.

[mkaupp]

Thanks for your reply!

I had'nt "commons-lang.jar" in my classpath on client side. Now I included it and get other errors.

java.lang.NoClassDefFoundError: com/liferay/util/dao/hibernate/OrderByComparator

at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.ja va:1655)
at java.lang.Class.privateGetPublicMethods(Class.java :1778)
at java.lang.Class.getMethods(Class.java:832)
at sun.misc.ProxyGenerator.generateClassFile(ProxyGen erator.java:173)
at sun.misc.ProxyGenerator.generateProxyClass(ProxyGe nerator.java:74)
at java.lang.reflect.Proxy.getProxyClass(Proxy.java:4 72)
at java.lang.reflect.Proxy.newProxyInstance(Proxy.jav a:552)
at com.caucho.hessian.client.HessianProxyFactory.crea te(HessianProxyFact
ory.java:203)

Are there any other libraries, I have to include?

Thanks a lot!

Markus

[mkaupp]

Sorry I think, I've been to fast with my question:

> java.lang.NoClassDefFoundError:
> com/liferay/util/dao/hibernate/OrderByComparator
This looks like I have to set the classpath so the path with utils for the liferay portal, that I use.

Markus