Noted in forum: http://www.icefaces.org/JForum/posts/list/0/2828.page#13738

Apparently, in a non-exploded war file, getResource("/") in an unexploded war
returns null, and web app startup fails:

 Dear Icesoft.
We found and confirmed a bug concerning Icefaces component.

Environment: Weblogic 8.1sp3 on Solaris, J2se 1.4

If we deploy the timezone2.war exploded, it works.

If we deploy timezone2.war as a not exploded war, it deploy but loading webapp
brokes:

Stacktrace:
java.lang.NullPointerException
at com.icesoft.faces.webapp.xmlhttp.PersistentFacesServlet.service(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:996)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:315)
at
weblogic.servlet.internal.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:312)
at weblogic.servlet.jsp.PageContextImpl.forward(PageContextImpl.java:150)
at jsp_servlet.__index._jspService(__index.java:124)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:33)
at
weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:996)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:463)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:315)
at
weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6452)
at
weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at
weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3661)
at
weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2630)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)