Can't make my themes work
Hello forum,
seam 1.1.0.GA
jboss-4.0.5.GA
ajax4jsf-1.0.5
Facelets
I am trying to add themes to my seam-app & have been
getting the "Cannot get value for expression
'#{org.jboss.seam.theme.theme}'" exception, caused by an NPE at
ThemeSelector:63
I copied the setup from the 1.1.0.GA blog example.
I.e., In components.xml I have
<component name="themeSelector"> <property name="availableThemes"> <value>default</value> <value>ie_default</value> </property> <property name="cookieEnabled">true</property> </component>
I put the property files in WEB-INF/classes
In the .war file, the theme files packaged WEB-INF/classes
eg: WEB-INF/classes/default.properties
etc...
These locations match what I see in the blog's war file.
I am not setting the default theme anywhere; I am assuming that the
first one in the component list will become default? I reference the
theme like so on my page:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:s="http://jboss.com/products/seam/taglib"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xml:lang="en"
lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Login</title>
<link href="#{theme.css}" rel="stylesheet" type="text/css" />
</head>
Exception:
I have javax.el.ELException: /view/home.xhtml: Cannot get value for expression '#{org.jboss.seam.theme.theme}'
at com.sun.facelets.compiler.AttributeInstruction.write(AttributeInstruction.java:53)
at com.sun.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:39)
at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:232)
at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:580)
at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:101)
at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:222)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:46)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:75)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:213)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
Caused by: javax.faces.el.EvaluationException: Exception getting value of property theme of base of type : org.jboss.seam.Namespace
at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:96)
at org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELParserHelper.java:532)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:383)
at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:51)
at org.jboss.seam.Component.getInstanceFromFactory(Component.java:1666)
at org.jboss.seam.Component.getInstance(Component.java:1615)
at org.jboss.seam.Component.getInstance(Component.java:1592)
at org.jboss.seam.jsf.SeamVariableResolver.resolveVariable(SeamVariableResolver.java:46)
at org.apache.myfaces.config.LastVariableResolverInChain.resolveVariable(LastVariableResolverInChain.java:42)
at com.sun.facelets.el.LegacyELContext$LegacyELResolver.getValue(LegacyELContext.java:134)
at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:65)
at com.sun.el.parser.AstValue.getValue(AstValue.java:106)
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:192)
at com.sun.facelets.el.ELText$ELTextVariable.toString(ELText.java:174)
at com.sun.facelets.compiler.AttributeInstruction.write(AttributeInstruction.java:49)
... 41 more
Caused by: java.lang.NullPointerException
at org.jboss.seam.theme.ThemeSelector.initDefaultTheme(ThemeSelector.java:63)
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:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:102)
at org.jboss.seam.Component.callComponentMethod(Component.java:1791)
at org.jboss.seam.Component.callCreateMethod(Component.java:1739)
at org.jboss.seam.Component.newInstance(Component.java:1728)
at org.jboss.seam.Component.getInstance(Component.java:1625)
at org.jboss.seam.Component.getInstance(Component.java:1604)
at org.jboss.seam.Component.getInstance(Component.java:1581)
at org.jboss.seam.Component.getInstance(Component.java:1576)
at org.jboss.seam.theme.ThemeSelector.instance(ThemeSelector.java:142)
at org.jboss.seam.theme.Theme.init(Theme.java:38)
at org.jboss.seam.theme.Theme.getTheme(Theme.java:104)
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:585)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:102)
at org.jboss.seam.Component.callComponentMethod(Component.java:1791)
at org.jboss.seam.Component.unwrap(Component.java:1817)
at org.jboss.seam.Component.getInstance(Component.java:1639)
at org.jboss.seam.Component.getInstance(Component.java:1592)
at org.jboss.seam.Namespace.get(Namespace.java:42)
at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:78)
... 56 more
Am I missing something obvious?
PdP
