Struts Portlet Deployment Errors in Liferay Portal 6.0.4

[Amir H. Moin, modifié il y a 13 années.]

Hello,

I've downloaded the sample-struts-liferay-portlet from Liferay's SVN repository and imported in Eclipse Helios. I use Tomcat 6.0.26 and Liferay Portal 6.0.4 with Plugins SDK.

It compiles well, but at the startup of Tomcat gives the errors below.
Any help would be kindly appreciated. Thanks in advance.


Aug 13, 2010 8:15:19 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory sample-struts-liferay-portlet
08:15:24,408 INFO [PortletHotDeployListener:222] Registering portlets for sample-struts-liferay-portlet
08:15:24,817 ERROR [PortletBagFactory:112] java.lang.NoClassDefFoundError: com/liferay/portlet/StrutsPortlet
java.lang.NoClassDefFoundError: com/liferay/portlet/StrutsPortlet
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2527)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1010)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1483)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
at com.liferay.portlet.PortletBagFactory.create(PortletBagFactory.java:109)
at com.liferay.portal.deploy.hot.PortletHotDeployListener.initPortlet(PortletHotDeployListener.java:458)
at com.liferay.portal.deploy.hot.PortletHotDeployListener.doInvokeDeploy(PortletHotDeployListener.java:255)
at com.liferay.portal.deploy.hot.PortletHotDeployListener.invokeDeploy(PortletHotDeployListener.java:103)
at com.liferay.portal.kernel.deploy.hot.HotDeployUtil._doFireDeployEvent(HotDeployUtil.java:108)
at com.liferay.portal.kernel.deploy.hot.HotDeployUtil._fireDeployEvent(HotDeployUtil.java:178)
at com.liferay.portal.kernel.deploy.hot.HotDeployUtil.fireDeployEvent(HotDeployUtil.java:37)
at com.liferay.portal.kernel.servlet.PortletContextListener.portalInit(PortletContextListener.java:102)
at com.liferay.portal.kernel.util.PortalInitableUtil.init(PortalInitableUtil.java:37)
at com.liferay.portal.kernel.servlet.PortletContextListener.contextInitialized(PortletContextListener.java:98)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3972)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4467)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1345)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:303)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: com.liferay.portlet.StrutsPortlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
... 34 more

[Puj Z, modifié il y a 13 années.]

I have the same problem under Windows XP.

Can anyone from lp-team respond, whether it's a bug or not?

[Amir H. Moin, modifié il y a 13 années.]

Hi,

I've solved my class loader errors using this tutorial:

(http://www.liferay.com/web/guest/community/wiki/-/wiki/Main/How+to+access+the+full+Liferay+API+from+a+portlet+application)

Now, the status of my issue is update to:

http://issues.liferay.com/browse/LPS-11003

which is still an open issue!!

[Ahmed Hasan, modifié il y a 13 années.]

The best way is to create a struts portlet based on apache struts bridge. There is a sample in liferay plugins repository.

One request to liferay core developers. Can you please move the StrutsPortlet.java file to portal-service instead of portal-impl, so that we will not have problem loading this class.

Ahmed Hasan
CTO, mPower Global Inc.

[Amir H. Moin, modifié il y a 13 années.]

Ahmed:

Thank you very much indeed. It solved my problem.

For future reference of others:
http://svn.liferay.com/repos/public/plugins/branches/6.0.x/portlets/sample-struts-portlet/

I hope Liferay take care of your suggestion, since it sounds necessary.

[P.S. since the problem with Liferay is not actually resolved, I refused to mentioned 'resolved' in the subject line.]

[韓 成林, modifié il y a 9 mois.]

I hope this problem can be resloved as soon as possible.

[Kien Tran, modifié il y a 13 années.]

http://svn.liferay.com/repos/public/plugins/branches/6.0.x/portlets/sample-struts-portlet/

I haven't an account on this site. You can send for me.

Thanks you.

[Kien Tran, modifié il y a 13 années.]

How do i register an account on this website?

Thanks in advance,

[Simon Gołębiewski, modifié il y a 13 années.]

Login: guest
without password

[vijay pandey, modifié il y a 13 années.]

hi Ahmed hasan sir,
i am using eclispe and i have done plug in with liferay-plugins-sdk-6.0.5 but when i am going to make a portlet using struts then i face the problem of class not resolved ,Class name is =>(com.liferay.portlet.StrutsPortlet) ....
I has not reconize StrutsPortlet ...

Please Provide me solution

Thanks in advance

vijay pandey

[Simon Gołębiewski, modifié il y a 13 années.]

Ahmed,

I think you should fill this request on liferay JIRA and link to this thread.

Cheers,
Simon

[Arun Kumar S, modifié il y a 13 années.]

Hi Amir H.Moin.


Refer this link to solve class not found issue.

HTH,
Arun

[Hajri Mohamed, modifié il y a 13 années.]

this type of errors are coming from a false package tree, just correct it in struts-config.xml (action mapping) like this (tye = com.liferay.samplestruts.struts.action.(Class name here)), after updating all this, no class def found will not raise and the portlet will work fine