Collections via MXBeans_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-04-07 05:39 出处：网络

I need to define and implement an MXBean interface. One of the methods would return a Collection. This seems to be not supported by MXBeans. I get an OpenDataException saying \"Cannot convert type: ja

I need to define and implement an MXBean interface. One of the methods would return a Collection. This seems to be not supported by MXBeans. I get an OpenDataException saying "Cannot convert type: java.util.Collection". If I change it to List or Set then it works.

I have not found any documentation saying th开发者_运维知识库at Collections are not supported and this is why I am asking you experts. Do I miss something ?

The javadoc of the MXBean annotation describes in detail the mapping rules. List, Set, SortedSet are supported but not Collection.

Specification does not say it supports Java collections:

The following list specifies all data types that are allowed as scalars or as anydimensional arrays in open MBeans:

java.lang.Void

java.lang.Short

java.lang.Boolean

java.lang.Integer

java.lang.Byte

java.lang.Long

java.lang.Character

java.lang.Float

java.lang.String

java.lang.Double

java.math.BigDecimal

java.math.BigInteger

java.util.Date

javax.management.ObjectName

javax.management.openmbean.CompositeData (interface)

javax.management.openmbean.TabularData (interface)