I used a Trailblazer tutorial as the basis for my example.
http://trailblazer.demo.jboss.com/EJB3Trail/serviceobjects/jmx/index.html

The managment interfaces are Calculator and InvestmentAdvisor. The MBeans are CalculatorMBean and InvestmentAdvisorMBean. I want to inject Calculator into my other MBean, InvestmentAdvisorMBean. I receive an MBeanProxy error when deploying on JBoss 4.2.0.GA.


[EJBContainer] STARTED EJB: com.csg.mpg.service.CalculatorMBean ejbName: CalculatorMBean
[STDOUT] Calculator - Creating
[JmxKernelAbstraction] creating wrapper delegate for: org.jboss.ejb3.service.ServiceContainer
[JmxKernelAbstraction] installing MBean: jboss.j2ee:jar=mpg-ejbs-1.0.0-SNAPSHOT.jar,name=InvestmentAdvisorMBean,service=EJB3 with dependencies:
[JmxKernelAbstraction] trail:service=calculator
[EJBContainer] STARTED EJB: com.csg.mpg.service.InvestmentAdvisorMBean ejbName: InvestmentAdvisorMBean
[STDERR] java.lang.RuntimeException: Error creating MBeanProxy: trail:service=calculator
[STDERR] at org.jboss.mx.util.MBeanProxyExt.init(MBeanProxyExt.java:415)
[STDERR] at org.jboss.mx.util.MBeanProxyExt.(MBeanProxyExt.java:99)
[STDERR] at org.jboss.mx.util.MBeanProxyExt.create(MBeanProxyExt.java:394)
[STDERR] at org.jboss.mx.util.MBeanProxyExt.create(MBeanProxyExt.java:349)

I'd prefer to stick with the following because I can call calculator.calculate
directly.

@Depends ("trail:service=calculator")
public void setCalculator (Calculator calculator) {
this.calculator = calculator;
}

but I discovered that the following works

@Depends ("trail:service=calculator")
private ObjectName calculatorName;

It is clumsy since I have to loop through the various mbean servers (I have
two for some reason) in order get the mbean and then call invoke.

Any thoughts on what I am missing?


Here are my classes

public interface Calculator {
 // Attribute
 public void setGrowthrate(double g);

 public double getGrowthrate();

 // The management method
 public double calculate(int start, int end, double saving);

 // Life cycle method
 public void create() throws Exception;

 public void destroy() throws Exception;
}

@Service(objectName = "trail:service=calculator")
@Management(Calculator.class)
public class CalculatorMBean implements Calculator {

 double growthrate;

 public void setGrowthrate(double growthrate) {
 this.growthrate = growthrate;
 }

 public double getGrowthrate() {
 return growthrate;
 }

 public double calculate(int start, int end, double saving) {
 double tmp = Math.pow(1. + growthrate / 12., 12. * (end - start) + 1);
 return saving * 12. * (tmp - 1) / growthrate;
 }

 // Lifecycle methods
 public void create() throws Exception {
 growthrate = 0.08;
 System.out.println("Calculator - Creating");
 }

 public void destroy() {
 System.out.println("Calculator - Destroying");
 }

}

public interface InvestmentAdvisor {

 // The management method
 public void advise();

 // Life cycle method
 public void create() throws Exception;

 public void destroy() throws Exception;
}

@Service (objectName="trail:service=investmentAdvisor")
@Management(InvestmentAdvisor.class)
public class InvestmentAdvisorMBean implements InvestmentAdvisor {

 private Calculator calculator;

 @Depends ("trail:service=calculator")
 public void setCalculator (Calculator calculator) {
 this.calculator = calculator;
 }

 public void create() throws Exception {
 System.out.println("InvestmentAdvisorMBean created");
 }

 public void destroy() throws Exception {
 System.out.println("InvestmentAdvisorMBean destroyed");
 }

 public void advise() {
 System.out.println("InvestmentAdvisorMBean advising");
 calculator.calculate(25, 65, 300);

 }
}