Babak Vahdat created CAMEL-7096:
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Summary: The ObjectHelper#createIterator utility should properly
adhere the java.util.Iterator contract
Key: CAMEL-7096
URL: https://issues.apache.org/jira/browse/CAMEL-7096
Project: Camel
Issue Type: Bug
Components: camel-core
Affects Versions: 2.12.2
Reporter: Babak Vahdat
Assignee: Babak Vahdat
Priority: Minor
Fix For: 2.11.3, 2.12.3, 2.13.0
According to the {{java.util.Iterator#next()}} contract the implementation
should throw {{NoSuchElementException}} if the iteration has no more elements.
However this is currently not the case by the different anonymous class
implemetations of this interface through {{ObjectHelper#createIterator()}}.
The side effect of this is that currently this could end up with
{{IndexOutOfBoundsException}} and what not if one would iterate over the
{{Node}}(s) of a DOM {{NodeList}}. Another example is that calling {{next()}}
on the {{Iterator}} returned for an empty String *repeatedly* doesn't throw
any {{NoSuchElementException}} *although* it's {{hasNext()}} method returns
false!
We should better provide guards for the condition when there's no more elements
available in which case a {{NoSuchElementException}} should be thrown.
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