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https://issues.apache.org/jira/browse/QPID-3156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13011016#comment-13011016
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Justin Ross commented on QPID-3156:
-----------------------------------
Robbie pointed out on the dev list that this behavior has existed for two
releases. To me, that makes the evident level of user gotcha much less.
Therefore the incentive to merge this to 0.10 is much less as well. Rejected
for 0.10.
> Java client implementation of the Address syntax for Destinations throws a
> ClassCastException when used with the documented 'True' or 'False' values for
> node durability
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: QPID-3156
> URL: https://issues.apache.org/jira/browse/QPID-3156
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: 0.6, 0.7, 0.8, 0.9, 0.10
> Reporter: Robbie Gemmell
> Fix For: 0.11
>
> Attachments:
> 0001-QPID-3156-Use-MapAccessor-to-retrieve-Boolean-proper.patch
>
>
> The Java client implementation of the Address syntax for destinations throws
> a ClassCastException when used with the documented
> (http://qpid.apache.org/books/0.8/Programming-In-Apache-Qpid/html/ch02s04.html#section-address-string-bnf)
> 'True' or 'False' values for node durability, instead requiring that users
> specify 'true' or 'false' as the value to achieve the desired effect. The
> former is parsed as a boolean value by the AddressParser whereas the later is
> parsed as a String, but the AddressHelper implementation expects the durable
> property to be defined as a String and casts the value as such without doing
> an instanceof check after retrieving it from an untyped Map, thus leading to
> the ClassCastException observed.
> Ideally I would suggest the parser/helper should accept both variations going
> forward, thus preserving compatibility for anyone with already functional
> code and also making it possible for users to use whichever variant they
> prefer because e.g. it is best suited to a particular implementation language
> idiom.
> Reported by a user via the dev list:
> I tried to create a durable queue like this
> queue = queueSession.createQueue("myQueue;{create:always, node:{durable:
> True}}");
> QueueSender queueSender = queueSession.createSender(queue);
> queueSender.send(textMessage);
> and getting this exception.
> Caused by: java.lang.ClassCastException: java.lang.Boolean cannot be cast to
> java.lang.String
> at
> org.apache.qpid.client.messaging.address.AddressHelper.getDurability(AddressHelper.java:237)
> at
> org.apache.qpid.client.messaging.address.AddressHelper.fillInCommonNodeArgs(AddressHelper.java:222)
> at
> org.apache.qpid.client.messaging.address.AddressHelper.createQueueNode(AddressHelper.java:215)
> at
> org.apache.qpid.client.messaging.address.AddressHelper.getSourceNode(AddressHelper.java:254)
> at
> org.apache.qpid.client.AMQDestination.rebuildTargetAndSourceNodes(AMQDestination.java:888)
> at
> org.apache.qpid.client.AMQSession_0_10.resolveAddressType(AMQSession_0_10.java:1272)
> thanks,
> Amila.
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