0000079: MBean Proxy instance throws NPE in hashCode

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Category

Severity

Reproducibility

Date Submitted

Last Update

0000079

[Resin]

minor

always

04-04-05 00:00

05-11-05 00:00

Reporter

user82

View Status

public

Assigned To

Priority

immediate

Resolution

fixed

Status

closed

Product Version

Summary

0000079: MBean Proxy instance throws NPE in hashCode

Description

RSN-70
I am creating MBean proxies by calling newProxyInstance() and I am adding them to an ArrayList() and then I create a HashSet of the list at a later time and I get NPE. See below:

ArrayList list = new ArrayList();
list.add(MBeanServerInvocationHandler.newProxyInstance());
...
HashSet set = new HashSet(list);

java.lang.NullPointerException
        at $Proxy7.hashCode(Unknown Source)
        at java.util.HashMap.hash(HashMap.java:264)
        at java.util.HashMap.put(HashMap.java:382)
        at java.util.HashSet.add(HashSet.java:194)
        at java.util.AbstractCollection.addAll(AbstractCollection.java:318)
        at java.util.HashSet.<init>(HashSet.java:100)

Additional Information

jdk1.5.0_02 using the resin-pro snap from 4/1/05

Attached Files

Relationships

Notes
(0000084) user82 04-04-05 00:00	I should note that all of this code worked with Resin-pro-3.0.10 and jdk1.4.2_06, but for for some reason we have been have all kinds of problems with the MBean proxies with jdk1.5.0_02.

(0000085) ferg 04-04-05 00:00	server/1285

Issue History
Date Modified	Username	Field	Change
04-04-05 00:00	user82	New Issue
11-30-05 00:00	administrator	Fixed in Version	=> 3.0.13

Mantis 1.0.0rc3[^]

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