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java.lang.NoClassDefFoundError: 	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:164)	at org.apache.xindice.core.query.QueryEngine$1.process(QueryEngine.java:73)	at org.apache.xindice.util.Configuration.processChildren(Configuration.java:679)	at org.apache.xindice.core.query.QueryEngine.setConfig(QueryEngine.java:69)	at org.apache.xindice.core.Database.setConfig(Database.java:268)	at org.apache.xindice.core.Database.getDatabase(Database.java:89)	at org.apache.xindice.server.XindiceServlet.init(XindiceServlet.java:166)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:585)	at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)	at java.security.AccessController.doPrivileged(Native Method)	at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:118)	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1093)	at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:756)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:177)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:225)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933)	at com.sun.enterprise.web.connector.httpservice.HttpServiceProcessor.process(HttpServiceProcessor.java:221)	at com.sun.enterprise.web.HttpServiceWebContainer.service(HttpServiceWebContainer.java:2072)