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From Nick Burch <apa...@gagravarr.org>
Subject Re: POI-3.15: Commons-Collections-4 vs. Jasper Reports' dependency on Commons-Collections-3
Date Wed, 26 Oct 2016 08:35:20 GMT
On Wed, 26 Oct 2016, Andreas Reichel wrote:
> Sine POI 3.15 the software depends on commons-collections-4 (previously 
> it depended on commons-collections-3 only). There is however another 
> good software library "Jasper Reports", which still depends on 
> commons-collections-3 and also Apache POI.
>
> When using commons-collections-4 and POI-3.15, Jasper Reports throws:
> Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/apache/commons/collections/map/ReferenceMap
> 	at net.sf.jasperreports.engine.component.ComponentsEnvironment.<init>(ComponentsEnvironment.java:57)

You'd probably be best off asking the Apache Commons Collections folks 
[1], and/or get Jasper to upgrade to a newer Commons Collections

Nick

[1] http://commons.apache.org/proper/commons-collections/mail-lists.html

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