hi, I am new in liferay. I have created ext environment and created on portlet as per "Liferay Portal 4 - Portlet development guide by Joseph Shum" book but when ant is deploying then portal-impl.jar is currupted. In that file, jdbc code in portal.properties file is deleted automatically. also when tomcat is stared then there are errors in eclipse as follows:

log4j:WARN No appenders could be found for logger (org.apache.catalina.startup.ClassLoaderFactory).
log4j:WARN Please initialize the log4j system properly.
java.lang.reflect.InvocationTargetException
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:592)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.NullPointerException
at org.apache.catalina.startup.Catalina.await(Catalina.java:616)
at org.apache.catalina.startup.Catalina.start(Catalina.java:576)
... 6 more

Also when we start the tomcat by clicking "startup.bat" then that time errors are as follows:

Mar 28, 2011 5:56:14 AM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performanc
e in production environments was not found on the java.library.path: C:\Java\jdk
1.5.0_20\bin;.;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\system32;C:\WINDOWS;C:\
WINDOWS\System32\Wbem;C:\Program Files\TortoiseSVN\bin;C:\Java\jdk1.5.0_20\bin;C
:\Java\apache-ant-1.8.2\bin;C:\Java\jikes-1.22-1.windows\bin;
Mar 28, 2011 5:56:15 AM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8080
Mar 28, 2011 5:56:15 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1863 ms
Mar 28, 2011 5:56:15 AM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Mar 28, 2011 5:56:15 AM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.29
Mar 28, 2011 5:56:15 AM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor ROOT.xml
Loading jar:file:/D:/projects/liferay/tomcat/webapps/ROOT/WEB-INF/lib/portal-imp
l.jar!/system.properties
Loading file:/D:/projects/liferay/tomcat/webapps/ROOT/WEB-INF/classes/system-ext
.properties
Loading jar:file:/D:/projects/liferay/tomcat/webapps/ROOT/WEB-INF/lib/portal-imp
l.jar!/portal.properties
Loading file:/D:/projects/liferay/tomcat/webapps/ROOT/WEB-INF/classes/portal-ext
.properties
Mar 28, 2011 5:56:37 AM org.apache.catalina.core.StandardContext start
SEVERE: Error filterStart
Mar 28, 2011 5:56:37 AM org.apache.catalina.core.StandardContext start
SEVERE: Context [] startup failed due to previous errors
log4j:ERROR LogMananger.repositorySelector was null likely due to error in class
reloading, using NOPLoggerRepository.
Mar 28, 2011 5:56:40 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory tunnel-web
Mar 28, 2011 5:56:41 AM org.apache.catalina.core.StandardContext start
SEVERE: Error listenerStart
Mar 28, 2011 5:56:41 AM org.apache.catalina.core.StandardContext start
SEVERE: Context [/tunnel-web] startup failed due to previous errors
Mar 28, 2011 5:56:41 AM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
Mar 28, 2011 5:56:41 AM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Mar 28, 2011 5:56:41 AM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/62 config=null
Mar 28, 2011 5:56:41 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 26626 ms


Please reply as soon as possible. Thanks in advance.

Hello Sachin,

What is the version of portal used? When you start the portal without ext setup.. is it started properly?

-Ravi

hey ravi,
I am using liferay-portal-src-4.4.2 for creating ext environment. It is successfully created initially but when we create one portlet and ant deplyed that time, i got mentioned errors.

Hey Sachin,

Are you starting your new project on Liferay 4.x version or you already have a project and getting familiar with this very old release?

hi,
I am very new for lifeRay and creating a new project.

Hello Sachin,

In that case I will suggest you to change the approach.. try Liferay IDE/Netbeans+PortalPack to develop plugins instead of ext environment. I would recommend you to have a look at the Liferay Development Guide

This would be right start to portal development.

P.S. I have seen that error before but not sure about the solution. Try new versions of Liferay in place of 4.x; I dont think after using Liferay 6 anyone will think of using 4.x

Thanks and Regards
Ravi