1 Reply Latest reply on Feb 21, 2006 6:04 AM by dimitris

MBeans: cannot locate Constructor

mroodzant Feb 21, 2006 5:06 AM

Hi,

I am trying to get an MBean to work. I've kept it very simple and have made a sar with the following:

registrationService-mbeans.sar

 + META-INF
 + jboss-service.xml
 + nl
 +ibsp
 +registration
 +actions
 +MBeans
 + AuthenticateInfoMBean.class
 + AuthenticateInfo.class

The files in the sar contain the following:
jboss-service.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE server>
<server>
 <mbean code="nl.ibsp.registration.actions.MBeans.AuthenticateInfoMBean"
 name="ibsp:Service=AuthenticateInfo"/>
</server>

AuthenticateInfoMBean

package nl.ibsp.registration.actions.MBeans;

public interface AuthenticateInfoMBean
{
 public int getTotal();
 public void setTotal(int total);
}

AuthenticateInfo

package nl.ibsp.registration.actions.MBeans;

public class AuthenticateInfo
 implements AuthenticateInfoMBean
{
 private int total;

 public AuthenticateInfo(){
 total=0;
 }

 public int getTotal()
 {
 return total;
 }

 public void setTotal( int total )
 {
 this.total = total;
 }
}

When starting the configuration with this sar-file in the deploy-directory the following stacktrace occurs, indicating that the Constructor cannot be used or found:

10:20:40,686 ERROR [MainDeployer] could not create deployment: file:/app/jboss-4.0.2/server/default/deploy/registrationService-mbeans.sar/
org.jboss.deployment.DeploymentException: nl.ibsp.registration.actions.MBeans.AuthenticateInfoMBean.init>(); - nested throwable: (java.lang.NoSuchMethodException: nl.ibsp.registration.actions.MBeans.AuthenticateInfoMBean.init>())
at org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:143)
at org.jboss.system.ServiceController.install(ServiceController.java:202)
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.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)
at $Proxy4.install(Unknown Source)
at org.jboss.deployment.SARDeployer.create(SARDeployer.java:220)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:918)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:774)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738)
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.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:121)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:127)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)
at $Proxy8.deploy(Unknown Source)
at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:325)
at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:501)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:204)
at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:277)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:272)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:222)
at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:897)
at $Proxy0.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:418)
at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)
at $Proxy4.start(Unknown Source)
at org.jboss.deployment.SARDeployer.start(SARDeployer.java:273)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:964)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:775)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:738)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:722)
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.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:121)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:127)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:74)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)
at $Proxy5.deploy(Unknown Source)
at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:434)
at org.jboss.system.server.ServerImpl.start(ServerImpl.java:315)
at org.jboss.Main.boot(Main.java:195)
at org.jboss.Main$1.run(Main.java:463)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NoSuchMethodException: nl.ibsp.registration.actions.MBeans.AuthenticateInfoMBean.init>()
at java.lang.Class.getConstructor0(Class.java:2647)
at java.lang.Class.getConstructor(Class.java:1629)
at org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:1217)
at org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:271)
at org.jboss.mx.server.MBeanServerImpl.createMBean(MBeanServerImpl.java:329)
at org.jboss.system.ServiceCreator.install(ServiceCreator.java:124)
at org.jboss.system.ServiceConfigurator.internalInstall(ServiceConfigurator.java:153)
at org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:118)
... 81 more

If anyone can tell me what silly mistake I am making I would be very gratefull.

Marjon Roodzant

1. Re: MBeans: cannot locate Constructor

dimitris Feb 21, 2006 6:04 AM (in response to mroodzant)

The silly mistake is referencing the interface name, rather than the class name, in the code attribute of the jboss-service.xml descriptor. You can't instantiate an interface, only an implementation of it :)
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