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  1. ,

    You try to parse a String that contains non-numeric characters to an int. The string must contain decimal characters only, optionally beginning with a + or - sign.

  2. ,

    Can occur when you try to convert a String to a numeric value but the String is not well formatted for the conversion.

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java.lang.NumberFormatException: For input string: "::1"	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)	at java.lang.Integer.parseInt(Integer.java:447)	at java.lang.Integer.parseInt(Integer.java:497)	at de.goethe.cas.web.support.ThrottledSubmissionByIpAddressHandlerInterceptorAdapter.postHandle(ThrottledSubmissionByIpAddressHandlerInterceptorAdapter.java:98)	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:886)	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809)	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:476)	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:441)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)	at org.jasig.cas.web.init.SafeDispatcherServlet.service(SafeDispatcherServlet.java:115)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)	at org.inspektr.common.web.ClientInfoThreadLocalFilter.doFilterInternal(ClientInfoThreadLocalFilter.java:48)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)	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.invoke(StandardEngineValve.java:108)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)	at java.lang.Thread.run(Thread.java:613)