problem in deploying servlet
Hey,
I have an ear, with several jars and wars.
One of the wars contains a servlet.
1. When I try to use it I get:
15:34:35,713 INFO [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/webadmin]] (http--10.35.1.202-8080-1) Marking servlet WebAdminDynamicHosting as unavailable
15:34:35,714 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/webadmin].[WebAdminDynamicHosting]] (http--10.35.1.202-8080-1) Allocate exception for servlet WebAdminDynamicHosting: java.lang.IllegalArgumentException: object is not an instance of declaring class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_20]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_20]
at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_20]
at org.jboss.as.ee.component.ManagedReferenceMethodInjectionInterceptor.processInvocation(ManagedReferenceMethodInjectionInterceptor.java:66)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:287) [jboss-invocation-1.1.0.Final.jar:1.1.0.Final]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.0.Final.jar:1.1.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:287) [jboss-invocation-1.1.0.Final.jar:1.1.0.Final]
at org.jboss.as.ee.component.ManagedReferenceInterceptor.processInvocation(ManagedReferenceInterceptor.java:53)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:287) [jboss-invocation-1.1.0.Final.jar:1.1.0.Final]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.0.Final.jar:1.1.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:287) [jboss-invocation-1.1.0.Final.jar:1.1.0.Final]
at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:287) [jboss-invocation-1.1.0.Final.jar:1.1.0.Final]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.0.Final.jar:1.1.0.Final]
at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:152)
at org.jboss.as.ee.component.BasicComponent.createInstance(BasicComponent.java:77)
at org.jboss.as.web.deployment.component.WebComponentInstantiator$1.<init>(WebComponentInstantiator.java:57) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.web.deployment.component.WebComponentInstantiator.getReference(WebComponentInstantiator.java:55) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.web.deployment.WebInjectionContainer.instantiate(WebInjectionContainer.java:99) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.web.deployment.WebInjectionContainer.newInstance(WebInjectionContainer.java:78) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.web.deployment.WebInjectionContainer.newInstance(WebInjectionContainer.java:72) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1156) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:952) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:188) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:139) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]
at org.jboss.as.web.NamingValve.invoke(NamingValve.java:57) [jboss-as-web-7.0.2.Final.jar:7.0.2.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:154) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:667) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952) [jbossweb-7.0.1.Final.jar:7.0.2.Final]
at java.lang.Thread.run(Thread.java:636) [:1.6.0_20]
2. Subsequent calls result it:
Servlet WebAdminDynamicHosting is currently unavailable
3. The source of the servlet is:
package org.ovirt.engine.ui.frontend.server.gwt;
import java.io.IOException;
import java.io.PrintWriter;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.ovirt.engine.core.common.interfaces.BackendLocal;
import org.ovirt.engine.core.common.queries.VdcQueryParametersBase;
import org.ovirt.engine.core.common.queries.VdcQueryReturnValue;
import org.ovirt.engine.core.common.queries.VdcQueryType;
import org.ovirt.engine.core.common.users.VdcUser;
public class WebadminDynamicHostingServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private BackendLocal backend;
// TODO: Should only set an html element that will be replaced by GWT widget instead.
String title = "oVirt Enterprise Virtualization Engine Web Administration";
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
PrintWriter writer = resp.getWriter();
resp.setContentType("text/html");
resp.setCharacterEncoding("UTF-8");
writer.append("<!DOCTYPE html><html><head>");
writer.append("<meta http-equiv=\"content-type\" content=\"text/html; charset=UTF-8\">");
writer.append("<meta http-equiv=\"X-UA-Compatible\" content=\"IE=9\"/>");
writer.append("<title>" + title + "</title>");
VdcUser loggedUser = getLoggedInUser(req.getSession().getId());
if (loggedUser != null) {
writer.append("<script type=\"text/javascript\">");
writer.append(" var userInfo = { ");
writer.append(" \"id\" : \"" + loggedUser.getUserId().toString() + "\",");
writer.append(" \"userName\" : \"" + loggedUser.getUserName() + "\",");
writer.append(" \"domain\" : \"" + loggedUser.getDomainControler() + "\"");
writer.append(" };");
writer.append("</script>");
}
writer.append("</head><body>");
writer.append("<iframe src=\"javascript:''\" id=\"__gwt_historyFrame\" tabIndex='-1' style=\"position:absolute;width:0;height:0;border:0\"></iframe>");
writer.append("<script type=\"text/javascript\" src=\"webadmin.nocache.js\"></script>");
writer.append("</body></html>");
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
doGet(req, resp);
}
public VdcUser getLoggedInUser(String sessionId) {
VdcQueryParametersBase queryParams = new VdcQueryParametersBase();
queryParams.setSessionId(sessionId);
queryParams.setHttpSessionId(sessionId);
VdcQueryReturnValue vqrv = backend.RunQuery(VdcQueryType.GetUserBySessionId, queryParams);
if (!vqrv.getSucceeded()) {
return null;
} else if (vqrv.getSucceeded()) {
if (vqrv.getReturnValue() == null)
return null;
return (VdcUser) vqrv.getReturnValue();
} else {
// For unknown reason the result was failed be returned.
return null;
}
}
@EJB(beanInterface = BackendLocal.class, mappedName = "java:global/engine/engine-bll/Backend!org.ovirt.engine.core.common.interfaces.BackendLocal")
public void setBackend(BackendLocal backend) {
this.backend = backend;
}
}
4. The service is located in a jar that is in the war/WEB-INF/lib directory.
5. The servler definition and mapping in WEB-INF/web.xml is:
| <servlet> | |
| <servlet-name>WebAdminDynamicHosting</servlet-name> | |
| <servlet-class>org.ovirt.engine.ui.frontend.server.gwt.WebadminDynamicHostingServlet</servlet-class> | |
| </servlet> | |
| <!-- servlet mappings --> | |
| <servlet-mapping> | |
| <servlet-name>WebAdminDynamicHosting</servlet-name> | |
| <url-pattern>/webadmin/WebAdmin.html</url-pattern> | |
| </servlet-mapping> |
6. I run jboss with the webservices module deployed (the standalone-preview.xml configuration).
Help will be appreciated :-)
Oved