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java.lang.NullPointerException: 	at ct.ui.paginas.LoginUser.(LoginUser.java:92)	at com.ibm._jsp._index._jspService(_index.java:92)	at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:98)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)	at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1443)	at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1384)	at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:104)	at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77)	at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:852)	at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:785)	at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:443)	at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:175)	at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:121)	at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:234)	at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionProcessor.handleRequest(AbstractJSPExtensionProcessor.java:335)	at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:325)	at com.ibm.ws.webcontainer.servlet.FilterProxyServlet.dispatch(FilterProxyServlet.java:78)	at com.ibm.ws.webcontainer.servlet.FilterProxyServlet.service(FilterProxyServlet.java:57)	at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1443)	at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1384)	at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:104)	at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77)	at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:852)	at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:917)	at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.invokeFilters(DefaultExtensionProcessor.java:924)	at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:651)	at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3610)	at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:274)	at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:926)	at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1557)	at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:173)	at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:455)	at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:384)	at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:272)	at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)	at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)	at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)	at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)	at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)	at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)	at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:202)	at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:766)	at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:896)	at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1527)