javax.servlet.ServletException: java.lang.NumberFormatException: null

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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.

Solutions on the web

via Jenkins JIRA by Jay Kah, 1 year ago
java.lang.NumberFormatException: null
via Jenkins JIRA by Jay Kah, 1 year ago
java.lang.NumberFormatException: null
via Google Groups by axay....@gmail.com (JIRA), 1 year ago
java.lang.IllegalArgumentException: Host name may not be null
via Jenkins JIRA by Axay Deole, 1 year ago
java.lang.IllegalArgumentException: Host name may not be null
via Jenkins JIRA by Axay Deole, 1 year ago
java.lang.IllegalArgumentException: Host name may not be null
via jenkins-ci.org by Unknown author, 1 year ago
java.lang.IllegalArgumentException: Host name may not be null
javax.servlet.ServletException: java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Integer.java:454)
at java.lang.Integer.parseInt(Integer.java:527)
at jenkins.model.Jenkins.configureDescriptor(Jenkins.java:2915)
at jenkins.model.Jenkins.doConfigSubmit(Jenkins.java:2878)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161)
at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96)
at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:121)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)

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