Tests fails when META-INF/validation.xml exist

Tests success when no META-INF/validation.xml exist，when META-INF/validation.xml exist，produce the following information:

2011-7-25 6:49:06 org.jboss.arquillian.container.impl.client.container.ContainerRegistryCreator getActivatedConfiguration
信息: Could not read active container configuration: null
2011-7-25 6:49:07 com.sun.enterprise.v3.server.CommonClassLoaderServiceImpl findDerbyClient
信息: Cannot find javadb client jar file, derby jdbc driver will not be available by default.
2011-7-25 6:49:07 org.hibernate.validator.util.Version <clinit>
信息: Hibernate Validator null
2011-7-25 6:49:07 org.hibernate.validator.engine.resolver.DefaultTraversableResolver detectJPA
信息: Instantiated an instance of org.hibernate.validator.engine.resolver.JPATraversableResolver.
2011-7-25 6:49:07 org.hibernate.validator.xml.ValidationXmlParser getValidationConfig
信息: META-INF/validation.xml found.
2011-7-25 6:49:07 org.hibernate.validator.xml.ValidationXmlParser getValidationConfig
严重: Error parsing validation.xml: null