Click on create link (http://localhost:7080/hudson/newJob). --> Enter a job
name --> click OK

The job configuration page is shown
(http://localhost:7080/hudson/job/NewWTest/configure).

Check Build Triggers option --> enter gh; in the schedule test area and click
save.
This happens for all user input box.

HTTP Status 500 page is shown with below err msg

type Exception report

message

description The server encountered an internal error () that prevented it from
fulfilling this request.

exception

javax.servlet.ServletException: java.lang.IllegalArgumentException:
antlr.ANTLRException: Invalid input: "gh;": line 1:1: unexpected char: 'g'
org.kohsuke.stapler.Stapler.invoke(Stapler.java:449)
org.kohsuke.stapler.MetaClass$9.doDispatch(MetaClass.java:263)
org.kohsuke.stapler.NameBasedDispatcher.dispatch
(NameBasedDispatcher.java:30)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:440)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:361)
org.kohsuke.stapler.Stapler.service(Stapler.java:121)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:38)
hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:30)
hudson.security.HudsonFilter.doFilter(HudsonFilter.java:88)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter
(ReplyHeaderFilter.java:96)

root cause

java.lang.IllegalArgumentException: antlr.ANTLRException: Invalid input: "gh;":
line 1:1: unexpected char: 'g'
org.kohsuke.stapler.RequestImpl.invokeConstructor(RequestImpl.java:392)
org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:323)
hudson.model.Descriptor.newInstance(Descriptor.java:136)
hudson.model.AbstractProject.buildDescribable(AbstractProject.java:933)
hudson.model.AbstractProject.submit(AbstractProject.java:918)
hudson.model.Project.submit(Project.java:150)
hudson.model.FreeStyleProject.submit(FreeStyleProject.java:68)
hudson.model.Job.doConfigSubmit(Job.java:831)
hudson.model.AbstractProject.doConfigSubmit(AbstractProject.java:312)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:103)
org.kohsuke.stapler.Function.bindAndinvoke(Function.java:57)
org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:75)
org.kohsuke.stapler.NameBasedDispatcher.dispatch
(NameBasedDispatcher.java:30)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:440)
org.kohsuke.stapler.MetaClass$9.doDispatch(MetaClass.java:263)
org.kohsuke.stapler.NameBasedDispatcher.dispatch
(NameBasedDispatcher.java:30)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:440)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:361)
org.kohsuke.stapler.Stapler.service(Stapler.java:121)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:38)
hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:30)
hudson.security.HudsonFilter.doFilter(HudsonFilter.java:88)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter
(ReplyHeaderFilter.java:96)
r.java:121)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:38)
hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:30)
hudson.security.HudsonFilter.doFilter(HudsonFilter.java:88)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter
(ReplyHeaderFilter