dev@glassfish.java.net

Felix NPE - Error loading class from module

From: Claudio Miranda <claudio_at_claudius.com.br>
Date: Thu, 8 Jan 2009 17:02:55 -0200

I am getting NPE from felix trying to load a class from the module I
had installed.

The exception line
at net.java.dev.certmanager.GUIFacade.getServerCertificates(GUIFacade.java:30)|#]

points to a code where it calls another class from the same module,
named CertificateMain.getServerCertificates()
What do I need to configure to make it work ?

The pom.xml is attached and the generated manifest.mf (from
target/classes/META-INF/MANIFEST.MF)

[#|2009-01-08T16:43:28.500-0200|INFO|glassfish|null|_ThreadID=17;_ThreadName=Thread-4;|ERROR:
Unable to get module class path. (java.lang.NullPointerException)|#]
[#|2009-01-08T16:43:28.501-0200|SEVERE|glassfish|null|_ThreadID=17;_ThreadName=Thread-4;|java.lang.NullPointerException|#]
[#|2009-01-08T16:43:28.502-0200|SEVERE|glassfish|null|_ThreadID=17;_ThreadName=Thread-4;|
      at java.util.jar.Manifest$FastInputStream.fill(Manifest.java:422)|#]
...
[#|2009-01-08T16:43:28.505-0200|SEVERE|glassfish|null|_ThreadID=17;_ThreadName=Thread-4;|
      at org.apache.felix.framework.searchpolicy.ContentClassLoader.loadClass(ContentClassLoader.java:109)|#]
[#|2009-01-08T16:43:28.505-0200|SEVERE|glassfish|null|_ThreadID=17;_ThreadName=Thread-4;|
      at java.lang.ClassLoader.loadClass(ClassLoader.java:252)|#]
[#|2009-01-08T16:43:28.505-0200|SEVERE|glassfish|null|_ThreadID=17;_ThreadName=Thread-4;|
      at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)|#]
[#|2009-01-08T16:43:28.505-0200|SEVERE|glassfish|null|_ThreadID=17;_ThreadName=Thread-4;|
      at net.java.dev.certmanager.GUIFacade.getServerCertificates(GUIFacade.java:30)|#]



[#|2009-01-08T16:43:28.530-0200|SEVERE|glassfish|javax.enterprise.system.container.web|_ThreadID=17;_ThreadName=Thread-4;|StandardWrapperValve[FacesServlet]:
PWC1406: Servlet.service() for servlet FacesServlet threw exception
java.lang.RuntimeException:
java.lang.reflect.InvocationTargetException while attempting to
process a 'beforeCreate' event for 'page1'.
        at com.sun.jsftemplating.layout.descriptors.LayoutElementBase.dispatchHandlers(LayoutElementBase.java:422)
....
Caused by: 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:597)
        at com.sun.jsftemplating.layout.descriptors.handler.Handler.invoke(Handler.java:422)
        at com.sun.jsftemplating.layout.descriptors.LayoutElementBase.dispatchHandlers(LayoutElementBase.java:420)
        ... 52 more
Caused by: java.lang.NullPointerException
        at org.apache.felix.framework.searchpolicy.ContentClassLoader.findClass(ContentClassLoader.java:145)
        at org.apache.felix.framework.searchpolicy.ContentClassLoader.loadClassFromModule(ContentClassLoader.java:85)
        at org.apache.felix.framework.searchpolicy.ContentLoaderImpl.getClass(ContentLoaderImpl.java:162)
        at org.apache.felix.framework.searchpolicy.R4Wire.getClass(R4Wire.java:101)
        at org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.searchImports(R4SearchPolicyCore.java:505)
        at org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClassOrResource(R4SearchPolicyCore.java:466)
        at org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.findClass(R4SearchPolicyCore.java:185)
        at org.apache.felix.framework.searchpolicy.R4SearchPolicy.findClass(R4SearchPolicy.java:45)
        at org.apache.felix.framework.searchpolicy.ContentClassLoader.loadClass(ContentClassLoader.java:109)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)


-- 
  Claudio Miranda
  _______________________________________________