I successfully set up a Tomcat server that runs Liferay through Eclipse. I’m working on a very simple portlet to learn more about the Liferay portal framework. Every time I make a modification to ANY file in my portlet and save, Eclipse attempts to republish or redeploy to the Tomcat server. Even on the most trivial change (changing one line a CSS file), an error occurs. The popup reads:
An internal error occurred during:
“Publishing to Liferay v6.0 Server
(Tomcat 6) at localhost…”.
org.eclipse.jst.server.tomcat.core.internal.ITomcatVersionHandler.prepareForServingDirectly(Lorg/eclipse/core/runtime/IPath;Lorg/eclipse/jst/server/tomcat/core/internal/TomcatServer;)Lorg/eclipse/core/runtime/IStatus
Also, the Eclipse console reads:
Apr 5, 2011 11:11:21 PM org.apache.catalina.loader.WebappClassLoader modified
SEVERE: Resource ‘/WEB-INF/lib/commons-logging.jar’ is missing
Apr 5, 2011 11:11:21 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading this Context has started
23:11:21,080 INFO [ExtHotDeployListener:205] Extension environment for customer-portal-liferay-portlet will not be undeployed
23:11:21,081 INFO [PortletHotDeployListener:404] Unregistering portlets for customer-portal-liferay-portlet
23:11:21,082 INFO [PortletHotDeployListener:435] 1 portlet for customer-portal-liferay-portlet was unregistered
I think that the console error is a result of the previous error – I tried dropping in commons-logging.jar into /WEB-INF/lib/ and it just gets erased after the first error occurs.
One thing to note: after this error occurs, I can run “ant deploy” on my portlet and it deploys successfully. It’s only during a save that it crashes.
This is my best guess: In the Eclipse server view, have a look for the server that you have declared. At the beginning of that line on the far left side there is an arrow that you can click to open the server and see the projects that are deployed on this server. If any projects are listed here, Eclipse will rebuild and deploy it when anything changes. Personally I don’y like this, so select and delete the deployed projects so that they are no longer auto-deployed by Eclipse. The other way is to change the server so that it doesn’t autodeploy, but I never use that feature anyway.
I’m not sure why autodeploying causes issues for you, it should be OK (although I have seen occasional problems when Liferay tries to read a WAR file while it is still being written) but I wouldn’t worry if
ant deployworks without any problems.