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From "Nathan Beyer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-1733) javax.management.modelmbean.RequiredModelMBean.preRegister(null, null) throws IllegalArgumentException instead of NPE
Date Fri, 06 Oct 2006 04:02:21 GMT
    [ http://issues.apache.org/jira/browse/HARMONY-1733?page=comments#action_12440316 ] 
            
Nathan Beyer commented on HARMONY-1733:
---------------------------------------

You may want to check out the MX4J project for this issue. Currently, Harmony just re-packages
MX4J.

http://mx4j.sourceforge.net/

> javax.management.modelmbean.RequiredModelMBean.preRegister(null, null) throws IllegalArgumentException
instead of NPE
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-1733
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1733
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Nikolay Bannikov
>            Priority: Minor
>
> Description: 
> According to J2SE API specifications of javax.management.modelmbean.RequiredModelMBean,
method javax.management.modelmbean.RequiredModelMBean.preRegister(MBeanServer,ObjectName)
throws Exception - This exception will be caught by the MBean server and re-thrown as an MBeanRegistrationException.

> Harmony for RequiredModelMBean.preRegister(null, null) throws the IllegalArgumentException
while RI throws NPE.
> Compatibility issue.
> Test for reproducing:   
> import junit.framework.TestCase;
> import javax.management.modelmbean.RequiredModelMBean;
> import javax.management.MBeanException;
> import javax.management.RuntimeOperationsException;
> public class Test extends TestCase {       
>    public void testRequiredModelMBean_preRegister_null_null() throws RuntimeOperationsException,
MBeanException, Exception { 
> 	RequiredModelMBean r = new RequiredModelMBean();
> 	try {
> 		r.preRegister(null, null);
> 		fail("NPE should be thrown");
> 	} catch ( NullPointerException e) {
> 		//expected 
> 	}
>    }
> }
>  Output on Sun 1.5: 
> ================== 
> java version "1.5.0_06" 
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05) 
> Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode) 
> . 
> Time: 0 
> OK (1 test) 
> Output on Harmony: 
> ================== 
>  Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or
its licensors, as applicable. 
> java version "1.5.0" pre-alpha : not complete or compatible 
> svn = r452710, (Oct 4 2006), Windows/ia32/msvc 1310, release build 
> http://incubator.apache.org/harmony 
> .F
> Time: 0.016
> There was 1 failure:
> 1) testRequiredModelMBean_MBeanServer_ObjectName(Test)junit.framework.AssertionFailedError:
NPE should be thrown
>         at Test.testRequiredModelMBean_MBeanServer_ObjectName(Test.java:26)
>         at java.lang.reflect.AccessibleObject.invokeV(AccessibleObject.java:25)
> FAILURES!!!
> Tests run: 1,  Failures: 1,  Errors: 0

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