[JAMES-1815] Crash when reading domainlist via JMX

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-beta5
• Component/s: JMX
• Assignee: Unassigned
• Reporter: Tobias Fleig
• Created: 09/Aug/16 09:35
• Updated: 17/Aug/16 03:36
• Resolved: 17/Aug/16 03:36

Description

Reading the list of domains via JMX from:

ObjectName: "org.apache.james:type=component,name=domainlist", Attribute "Domains"

crashes with:

java.lang.UnsupportedOperationException
at com.google.common.collect.ImmutableCollection.add(ImmutableCollection.java:96)
at org.apache.james.domainlist.lib.AbstractDomainList.getDomains(AbstractDomainList.java:131)
at org.apache.james.domainlist.lib.DomainListManagement.getDomains(DomainListManagement.java:69)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Some subclasses (JPADomainList, HBaseDomainList, MemoryDomainList) return an ImmutableList in getDomainListInternal(). This list is then modified by getDomains() in AbstractDomainList, which causes the crash above.

We will supply a patch/pull request.

Issue Links

• links to: GitHub Pull Request #47