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"Access is denied for the getMinimumPoolSize operation on ThreadPool"

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sachg...@gmail.com

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Apr 12, 2008, 2:45:51 AM4/12/08

Hi !! 
 
I am accessing custom mbeans of was 6.1 from my jmx client. 
I have 2 JREs to run this jmx client either from the 
A) WAS JRE 
B) SUN JRE 
 
sachinlnctmca2004 
 
Following is my code: 
 
/* 
* Created on Mar 17, 2008 
* 
* TODO To change the template for this generated file go to 
* Window - Preferences - Java - Code Style - Code Templates 
*/ 
package com; 
 
/** 
* @author Administrator 
* 
* TODO To change the template for this generated type comment go to 
* Window - Preferences - Java - Code Style - Code Templates 
*/ 
import javax.management.MBeanPermission ; 
import com.ibm.websphere.security.WebSphereRuntimePermission; 
 
import java.io.Serializable; 
 
import java.util.Set; 
import java.util.Hashtable; 
import java.util.*; 
 
//old imports downside 
import javax.management.Attribute; 
 
import javax.management.MBeanAttributeInfo; 
import javax.management.MBeanServerPermission; 
 
import javax.management.Notification; 
import javax.management.NotificationListener; 
import javax.management.ObjectName; 
 
import javax.management.j2ee.Management; 
import javax.management.j2ee.ManagementHome; 
 
import javax.naming.Context; 
import javax.naming.InitialContext; 
import javax.rmi.PortableRemoteObject; 
 
import com.ibm.websphere.management.statistics.JVMStats; 



 
public class WSConnector implements Serializable{ 
 
Hashtable env; 
ManagementHome mejbHome ; 
Management mejb; 
public WSConnector() 
{ 
env = new Hashtable(); 


try{ 
 
env.put(Context.INITIAL_CONTEXT_FACTORY,"com.ibm.websphere.naming.WsnInitialContextFactory"); 
//env.put(Context.PROVIDER_URL, "corbaloc:iiop:192.168.0.109:9101");//2809 
env.put(Context.PROVIDER_URL, "iiop://192.168.0.108:2809"); 
env.put("java.naming.corba.orb",org.omg.CORBA.ORB.init((String[])null,null)); 
//env.put(Context.SECURITY_PRINCIPAL, "admin"); 
//env.put(Context.SECURITY_CREDENTIALS, "admin"); 

Context ic = new InitialContext(env); 
WebSphereRuntimePermission wrp = new WebSphereRuntimePermission ("AdminPermission"); 
System.out.println(wrp.getName()); 

MBeanPermission mbp = new MBeanPermission("", ""); 
System.out.println("check guard="+ mbp.getActions()); 
System.out.println(mbp.getActions()); 
System.out.println(mbp.getName()); 
 
//com.ibm.websphere.security.WebSphereRuntimePermission; 
 
Object obj = ic.lookup("ejb/mgmt/MEJB"); 
// Object obj = ic.lookup("ejb/ivtEJBObject"); 

mejbHome = (ManagementHome)PortableRemoteObject.narrow(obj, ManagementHome.class); 
mejb = mejbHome.create(); 
 
ObjectName jvmQuery = new ObjectName(":j2eeType=JVM,"); 
Set s = mejb.queryNames(jvmQuery, null); 
System.out.println("Size is"+s.size()); 
/* ObjectName jvmMBean = (ObjectName) s.iterator().next(); 
 
boolean hasStats = ((Boolean) mejb.getAttribute(jvmMBean, 
"statisticsProvider")).booleanValue(); 
if (hasStats) { 
JVMStats stats = (JVMStats) mejb.getAttribute(jvmMBean, 
"stats"); 
String[] statisticNames = stats.getStatisticNames(); 
if (Arrays.asList(statisticNames).contains("heapSize")) { 
System.out.println("Heap size: " + stats.getHeapSize()); 
} 
}*/ 

 
// Iterator i1 = s.iterator(); 
int j1=1; 
/*while(i1.hasNext()) 
{ 
ObjectName on1 =(ObjectName)i1.next(); 
 
System.out.println("Heap Size is =" +mejb.getAttribute(on1,"heapSize")); 
 
j1++; 
}*/ 

/* ObjectName jvmQuery1 = new ObjectName(":j2eeType=Perf ,"); 
System.out.println(jvmQuery1); 
Set s1 = mejb.queryNames(jvmQuery1, null); 
System.out.println(s1.size()); 
Iterator i4 = s1.iterator(); 
while(i4.hasNext()) 
{ 
 
ObjectName kl = (ObjectName)i4.next(); 
System.out.println("FreeMemory is =" +mejb.getAttribute(kl,"FreeMemory")); 
 
ObjectName jvmMBean9 = (ObjectName) i4.next(); 
boolean hasStats = ((Boolean) mejb.getAttribute(jvmMBean9, 
"statisticsProvider")).booleanValue(); 
System.out.println(hasStats); 
if (hasStats) { 
JVMStats stats = (JVMStats) mejb.getAttribute(jvmMBean9,"stats"); 
String[] statisticNames = stats.getStatisticNames(); 
if (Arrays.asList(statisticNames).contains("FreeMemory")) { 
System.out.println("Heap size: " + stats.getHeapSize()); 
} 
} 
}*/ 
}catch (Exception e) 
{ 
e.printStackTrace(); 
} 

 
} 
public static void main(String s[]) 
{ 
WSConnector ws = new WSConnector(); 
ws.test();//Calling the test for displyaing and getting the mbeans operations and attribs 
System.out.println("connected"); 
 
} 
public void test() { 

/*try{ 
env.put(Context.INITIAL_CONTEXT_FACTORY,"com.ibm.websphere.naming.WsnInitialContextFactory"); 
//env.put(Context.PROVIDER_URL, "corbaloc:iiop:192.168.0.109:9101"); 
env.put(Context.PROVIDER_URL, "iiop://192.168.0.109:2809"); 
env.put("java.naming.corba.orb",org.omg.CORBA.ORB.init((String[])null,null)); 
//env.put(Context.SECURITY_PRINCIPAL, "admin"); 
//env.put(Context.SECURITY_CREDENTIALS, "admin"); 

Context ic = new InitialContext(env); 
WebSphereRuntimePermission wrp = new WebSphereRuntimePermission ("AdminPermission"); 
System.out.println(wrp.getName()); 

MBeanPermission mbp = new MBeanPermission("", ""); 
System.out.println("check guard="+ mbp.getActions()); 
System.out.println(mbp.getActions()); 
System.out.println(mbp.getName()); 
 
//com.ibm.websphere.security.WebSphereRuntimePermission; 
 
Object obj = ic.lookup("ejb/mgmt/MEJB"); 
// Object obj = ic.lookup("ejb/ivtEJBObject"); 

ManagementHome mejbHome = (ManagementHome)PortableRemoteObject.narrow(obj, ManagementHome.class); 
Management mejb = mejbHome.create();*/ 
try{ 
ObjectName on = new ObjectName("WebSphere*:*"); 
 
// get all objectnames for this server 
 
Set objectNameSet = mejb.queryNames(on, null); 
// System.out.println(on.getCanonicalName()); 

Iterator i = objectNameSet.iterator(); 
boolean hasStats=false; 
while (i.hasNext()) 
{ 
 
on = (ObjectName) i.next(); 
 
String type = on.getKeyProperty("type"); 
 
if (!type.equals("ThreadPool")) { 
 
continue; 
 
} 
 
System.out.println("found mbean for JVM: " + on); 
//code for getting the attributes 

if(on.getKeyProperty("type").toString().equalsIgnoreCase("ThreadPool")) 
{ 
MBeanAttributeInfo[] atin = mejb.getMBeanInfo(on).getAttributes(); 
System.out.println(atin.length); 

for(int k=0;k<atin.length;k++) 
{ 
System.out.println(k+"Attribute name is " +atin[k].getName()); 
// System.out.println("Mbean type is " +atin[k].getType()); 
//System.out.println("Mbean class is " +atin[k].getClass()); 
 
} 
// System.out.println("name of data source is =" +(on1)); 
/* String method = "setMinimumPoolSize"; 
 
System.out.println("calling '" + method + "'"); 
 
Object[] params = new Object[1]; //new Object[0]; 
params[0]= new Integer(12); 
Object[] params1=null; 
 
String[] signature = new String[1]; // new String[0]; 
signature[0]="java.lang.Integer"; 
 
Object o = mejb.invoke(on, method, params, signature); 
// Boolean sets = (Boolean) o; 
 
//System.out.println("name of mmmmmmmmmm =" +(sets));*/ 
// mejb.setAttribute(on,new Attribute("minimumSize", new Integer(5))); 
System.out.println("reading the minimumSize for Thread Pool =" +mejb.getAttribute(on,"minimumSize")); 
// hasStats =((Boolean) mejb.getAttribute(on,"stats")).booleanValue(); 
 
} 
 
/* if (hasStats) { 
System.out.println("reading333333333" +mejb.getAttribute(on,"connectionFactoryType")); 
JVMStats stats = (JVMStats) mejb.getAttribute(on, 
"stats"); 
System.out.println("reading333333333" +stats); 
String[] statisticNames = stats.getStatisticNames(); 
System.out.println("reading333333333" +statisticNames); 
if (Arrays.asList(statisticNames).contains("heapSize")) { 
System.out.println("Heap size: poloolo" + stats.getStatistics()); 
}}*/ 

 
// printClusterMembers(on); 
System.out.println("success"); 

}//availableList(on); 
}catch (Exception e) 
{e.printStackTrace(); 
} 
} 
} 
 
And the error I am getting is --------------------> 

javax.management.JMRuntimeException: ADMN0022E: Access is denied for the getMinimumPoolSize operation on ThreadPool MBean because of insufficient or empty credentials. 
at com.ibm.ws.management.AdminServiceImpl.preInvoke(AdminServiceImpl.java:1918) 
at com.ibm.ws.management.AdminServiceImpl.preInvoke(AdminServiceImpl.java:1766) 
at com.ibm.ws.management.AdminServiceImpl.preInvoke(AdminServiceImpl.java:1694) 
at com.ibm.ws.management.AdminServiceImpl.preInvoke(AdminServiceImpl.java:1667) 
at com.ibm.ws.management.AdminServiceImpl.getAttribute(AdminServiceImpl.java:661) 
at com.ibm.ws.management.j2ee.ManagementBean.getAttribute(ManagementBean.java:156) 
at javax.management.j2ee.EJSRemoteStatelessManagement_06214580.getAttribute(Unknown Source) 
at javax.management.j2ee._EJSRemoteStatelessManagement_06214580_Tie.getAttribute(_EJSRemoteStatelessManagement_06214580_Tie.java:265) 
at javax.management.j2ee._EJSRemoteStatelessManagement_06214580_Tie._invoke(_EJSRemoteStatelessManagement_06214580_Tie.java:141) 
at com.ibm.CORBA.iiop.ServerDelegate.dispatchInvokeHandler(ServerDelegate.java:613) 
at com.ibm.CORBA.iiop.ServerDelegate.dispatch(ServerDelegate.java:466) 
at com.ibm.rmi.iiop.ORB.process(ORB.java:503) 
at com.ibm.CORBA.iiop.ORB.process(ORB.java:1552) 
at com.ibm.rmi.iiop.Connection.respondTo(Connection.java:2673) 
at com.ibm.rmi.iiop.Connection.doWork(Connection.java:2551) 
at com.ibm.rmi.iiop.WorkUnitImpl.doWork(WorkUnitImpl.java:62)

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