Remoting: Exception during loadResourceProviders
Hi!
I got my information from here http://docs.jboss.com/seam/2.0.0.CR2/reference/en/html/remoting.html
please tell me what I did wrong.
My setup is like this:
app.ear ejb.jar com/acme/.. META-INF components.xml ejb-jar.xml persistence.xml web.war <resources> WEB-INF lib/jboss-seam-remoting.jar web.xml jboss-seam-debug.jar jboss-seam.jar
my components.xml:
<?xml version="1.0" encoding="UTF-8"?>
<components xmlns="http://jboss.com/products/seam/components"
xmlns:core="http://jboss.com/products/seam/core"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=
"http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.0.xsd
http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.0.xsd">
<core:init jndi-pattern="myapp/#{ejbName}/local"/>
</components>
my web.xml:
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <servlet> <servlet-name>Seam Resource Servlet</servlet-name> <servlet-class>org.jboss.seam.servlet.SeamResourceServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>Seam Resource Servlet</servlet-name> <url-pattern>/seam/resource/*</url-pattern> </servlet-mapping> </web-app>
Now the problem is when accessing resources via seam/resource/*
I get the follwing exception
12:01:53,919 ERROR [[Seam Resource Servlet]] Allocate exception for servlet Seam Resource Servlet java.lang.NullPointerException at org.jboss.seam.servlet.SeamResourceServlet.loadResourceProviders(SeamResourceServlet.java:43) at org.jboss.seam.servlet.SeamResourceServlet.init(SeamResourceServlet.java:35) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1161) at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:806) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:637)
I debugged the problem and here the NPE occurs:
protected void loadResourceProviders()
{
Context tempApplicationContext = new ApplicationContext( new ServletApplicationMap(context) );
Init init = (Init) tempApplicationContext.get(Init.class);
/**
* Here init == null !!
*/
for (String name : init.getResourceProviders())
{
AbstractResource provider = (AbstractResource) tempApplicationContext.get(name);
if (provider != null)
{
provider.setServletContext(context);
providers.put( provider.getResourcePath(), provider );
}
}
}
Thank you,
Thomas
