De String a Calendar con este formato

[toofast]

Muy bien:

[17/07/2014 10:30:41] - ERROR [jsp].invoke: Servlet.service() para servlet jsp lanzó excepción
java.lang.NullPointerException
at javax.xml.bind.DatatypeConverter.parseDateTime(Dat atypeConverter.java:263)
at globales.filtros.CargarAgencias.pruebaWS(CargarAge ncias.java:200) <- Aquí hago la llamada
at globales.filtros.CargarAgencias.getDatosVuelta(Car garAgencias.java:187)
at org.apache.jsp.jsp.inicio.COM_005finitApp_jsp._jsp Service(COM_005finitApp_jsp.java:320)
at org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:729)
at org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:331)
at org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:329)
at org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:265)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:729)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:188)
at globales.FiltroAutenticacion.doFilter(FiltroAutent icacion.java:57)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:172)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:875)
at org.apache.coyote.http11.Http11BaseProtocol$Http11 ConnectionHandler.processConnection(Http11BaseProt ocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.process Socket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThr ead.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlR unnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:595)