Jasper + commons.collection

Pessoal,

Na minha aplicação, quando chamo o método JasperRunManager.runReportToPdf(in,parameters,relatorio);

Ele retorna a exception:
17:09:40,722 INFO [STDOUT] java.lang.ClassNotFoundException: No ClassLoaders found for: org.apache.commons.collections.SequencedHashMap
17:09:40,722 INFO [STDOUT] at org.jboss.mx.loading.LoadMgr3.beginLoadTask(LoadMgr3.java:198)
17:09:40,732 INFO [STDOUT] at org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:475)
17:09:40,732 INFO [STDOUT] at org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:377)
17:09:40,732 INFO [STDOUT] at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
17:09:40,742 INFO [STDOUT] at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
17:09:40,742 INFO [STDOUT] at java.lang.Class.forName0(Native Method)
17:09:40,742 INFO [STDOUT] at java.lang.Class.forName(Class.java:219)
17:09:40,752 INFO [STDOUT] at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:558)
17:09:40,762 INFO [STDOUT] at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1513)
17:09:40,762 INFO [STDOUT] at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1435)
17:09:40,762 INFO [STDOUT] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1626)
17:09:40,772 INFO [STDOUT] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)
17:09:40,772 INFO [STDOUT] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1845)
17:09:40,772 INFO [STDOUT] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1769)
17:09:40,782 INFO [STDOUT] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)
17:09:40,782 INFO [STDOUT] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)
17:09:40,782 INFO [STDOUT] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1845)
17:09:40,792 INFO [STDOUT] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1769)
17:09:40,792 INFO [STDOUT] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)
17:09:40,802 INFO [STDOUT] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)
17:09:40,802 INFO [STDOUT] at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1845)
17:09:40,802 INFO [STDOUT] at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1769)
17:09:40,812 INFO [STDOUT] at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1646)
17:09:40,812 INFO [STDOUT] at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1274)
17:09:40,812 INFO [STDOUT] at java.io.ObjectInputStream.readObject(ObjectInputStream.java:324)
17:09:40,822 INFO [STDOUT] at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:192)
17:09:40,862 INFO [STDOUT] at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:580)
17:09:40,872 INFO [STDOUT] at net.sf.jasperreports.engine.JasperRunManager.runReportToPdf(JasperRunManager.java:402)

Mas o arquivo commons-collection.jar já está no classpath da aplicação.
Vcs tem alguma ideia do que pode estar errado?

Está usando o commons correto?
Se estiver usando o JBoss não tem outra aplicação com uma versão dierente do commons-collection?