Could not load org.apache.xerces.util.EncodingMa

出现此错误的原因是在hibernate 映射文件中引入了不存在的类名com.cn.common.domain.UserRole  并且存在不必要的映射文件
例如  <set
        name="user"
        inverse="true"
    >
        <key>
            <column name="role_id" />
        </key>
        <one-to-many class="com.cn.common.domain.UserRole" />
    </set>
具体详情如下
INFO: Illegal access: this web application instance has been stopped already.  Could not load org.apache.xerces.util.EncodingMap.  The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
java.lang.IllegalStateException