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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: on	at java.lang.Integer.parseInt(Integer.java:426)	at java.lang.Integer.parseInt(Integer.java:476)	at hudson.model.Project.doConfigSubmit(Project.java:173)	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:324)	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:212)	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:194)	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:96)	at org.kohsuke.stapler.Stapler.service(Stapler.java:54)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:793)	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:702)	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:571)	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:644)	at java.lang.Thread.run(Thread.java:536)