[jboss-user] [Beginners Corner] - ClassNotFoundException in an ear application
This might be a fundamental question:
I have a singleton class: SpringContext in a jar: context.jar and is initialiazed by a
InitServlet. This servlet is defined in web.xml and loaded from WEB-INF/classes. During
init(ServletConfig..), the spring beans container is inited with few beans.
However, I have a jar that resides under myapp.ear directory which cannot access the
ContextLoader class that was already inited during Servlet load time.
How can I successfully use it in a class defined in the jar under myapp.ear?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The actual error log is shown here:
2008-07-21 16:18:18,812 ERROR
[org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/myApp/xyz]]
Exception while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract
java.lang.String
com.mysoftware.myApp.gwt.client.MyImpl.getSpringBeanByName(java.lang.String,java.lang.String)'
threw an unexpected exception: java.lang.NoClassDefFoundError:
com/mysoftware/myApp/InitServlet
at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:361)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:547)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:265)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:187)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
...
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NoClassDefFoundError: com/mysoftware/myApp/InitServlet
at com.mysoftware.myApp.dao.ResourceHeaderDAO.loadHeaders(ResourceHeaderDAO.java:993)
at com.mysoftware.myApp.dao.ResourceHeaderDAO.loadAllHeaders(ResourceHeaderDAO.java:582)
at com.mysoftware.myApp.gwt.server.MyImpl.getSpringBeanByName(MyImpl.java:79)
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.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:528)
... 24 more
Caused by: java.lang.ClassNotFoundException: No ClassLoaders found for:
com.mysoftware.myApp.MyServletContext
at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:292)
at
org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:475)
at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:377)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 32 more
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Thanks,
Vamsi
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