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JSR-88 1.1 says that to retrieve a DConfigBeanRoot for auxiliary files such as webservices.xml, you call getDConfigBean (DDBeanRoot) method on the DConfigBeanRoot representing the main xml file (web.xml in this case). j2eeserver module is incorrectly calling DeploymentConfiguration.getDConfigBeanRoot to attempt to create a root DConfigBean for this module.
Fix as described.