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https://issues.apache.org/jira/browse/GROOVY-7800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15211659#comment-15211659
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Paul King commented on GROOVY-7800:
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Without looking further into the details, your thinking sounds reasonable to me.
> GroovyMBean does not extract target exception from RuntimeMBeanException
> ------------------------------------------------------------------------
>
> Key: GROOVY-7800
> URL: https://issues.apache.org/jira/browse/GROOVY-7800
> Project: Groovy
> Issue Type: Wish
> Components: JMX
> Affects Versions: 2.4.6
> Reporter: Crazy Gambler
> Priority: Minor
>
> Hello!
> I would like to get your thoughts on the behavior of {{GroovyMBean}} when
> handling exceptions.
> I am using Groovy to connect to MBeans written in Java.
> MBeans may throw checked exceptions or unchecked exceptions. According to
> Java spec, checked exceptions are wrapped in
> {{[javax.management.MBeanException|http://docs.oracle.com/javase/7/docs/api/javax/management/MBeanException.html]}}
> whereas unchecked exceptions are wrapped in
> {{[javax.management.RuntimeMBeanException|https://docs.oracle.com/javase/7/docs/api/javax/management/RuntimeMBeanException.html]}}.
> Both the {{RuntimeMBeanException}} and {{MBeanException}} implement a
> {{getTargetException()}} method that allows you to access the original
> exception that was thrown in the MBean.
> When I call an operation on my {{GroovyMBean}} which throws an
> {{MBeanException}}, the original exception is thrown. This is because the
> {{GroovyMBean}} implementation extracts the target exception from the
> {{MBeanException}}
> (https://github.com/groovy/groovy-core/blob/master/subprojects/groovy-jmx/src/main/java/groovy/util/GroovyMBean.java#L111)
> However, when I call an operation on my {{GroovyMBean}} which throws a
> {{RuntimeMBeanException}}, the wrapper {{RuntimeMBeanException}} is thrown.
> This is because the {{GroovyMBean}} implementation does not handle extracting
> the target exception from the {{RuntimeMBeanException}}.
> This behavior seems inconsistent to me. I think the {{GroovyMBean}} should
> extract target exception from {{RuntimeMBeanException}} as well.
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