XPath selectors return false if xalan is not on the classpath
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Key: AMQ-2536
URL: https://issues.apache.org/activemq/browse/AMQ-2536
Project: ActiveMQ
Issue Type: Bug
Components: Selector
Affects Versions: 5.3.0
Reporter: Roman Kalukiewicz
When xalan.jar is not on the classpath, then
{{org.apache.activemq.filter.XalanXPathEvaluator}} in {{evaluate()}} method
tries to load {{org.apache.xpath.CachedXPathAPI}}, throws
{{NoClassDefFoundError}}, that is catched as {{Throwable}} and {{false}} is
returned instead of an error.
No clue is given to the client, that it lacks a jar on the classpath and the
impression is, that XPath selectors doesn't work and return false whatever the
message is.
I believe if we catch {{Exception}} instead of {{Throwable}}, then the problem
would be fixed.
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