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java.lang.NullPointerException: 	at javax.mail.internet.AddressParser.tokenizeAddress(AddressParser.java:645)	at javax.mail.internet.AddressParser.parseAddress(AddressParser.java:113)	at javax.mail.internet.InternetAddress.(InternetAddress.java:81)	at javax.mail.internet.InternetAddress.(InternetAddress.java:72)	at cz.incad.Kramerius.security.userscommands.post.RegisterPublicUser.sendMail(RegisterPublicUser.java:126)	at cz.incad.Kramerius.security.userscommands.post.RegisterPublicUser.doCommand(RegisterPublicUser.java:81)	at cz.incad.Kramerius.security.UsersServlet$PostCommandsEnum.doAction(UsersServlet.java:138)	at cz.incad.Kramerius.security.UsersServlet.doPost(UsersServlet.java:115)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:643)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:66)	at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118)	at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at cz.incad.kramerius.auth.thirdparty.ExtAuthFilter.doFilter(ExtAuthFilter.java:62)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:615)	at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:421)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:223)	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:311)	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:793)	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:722)	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:915)	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)	at java.lang.Thread.run(Thread.java:745)