There seems to be multiple versions of bouncycastle jars included in webapp.

192035 Wed Sep 19 09:51:00 EEST 2012 WEB-INF/lib/bcmail-jdk14-1.38.jar
192035 Wed Sep 19 09:50:58 EEST 2012 WEB-INF/lib/bcmail-jdk14-138.jar
501462 Wed Sep 19 09:51:18 EEST 2012 WEB-INF/lib/bcmail-jdk16-1.46.jar
1887089 Wed Sep 19 09:51:02 EEST 2012 WEB-INF/lib/bcprov-ext-jdk16-1.46.jar
1551468 Wed Sep 19 09:51:00 EEST 2012 WEB-INF/lib/bcprov-jdk14-1.38.jar
1551468 Wed Sep 19 09:50:58 EEST 2012 WEB-INF/lib/bcprov-jdk14-138.jar
1876535 Wed Sep 19 09:51:06 EEST 2012 WEB-INF/lib/bcprov-jdk16-1.46.jar

Included a maven dependency report as an attachment.