javax.servlet.ServletException: java.lang.RuntimeException: Failed to instantiate class hudson.plugins.mercurial.MercurialSCM from {"value":"2","installation":"Mercurial (auto-install)","source":"https:,"credentialsId":"","branch":"default","modules":"","clean":false,"subdir":"","":"2","browser":{"stapler-class<span class="code-quote">":"hudson.plugins.mercurial.browser.GoogleCode","url":"https://code.google.com/p/boost-maven-project/"}}
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:735)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:799)
at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:239)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:685)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:799)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:587)
at org.kohsuke.stapler.Stapler.service(Stapler.java:218)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:45)
at winstone.ServletConfiguration.execute(ServletConfiguration.java:248)
at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:376)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96)
at hudson.plugins.audit_trail.AuditTrailFilter.doFilter(AuditTrailFilter.java:66)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99)
at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at jenkins.security.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:117)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:174)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at jenkins.security.ApiTokenFilter.doFilter(ApiTokenFilter.java:64)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:67)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:194)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:366)
at winstone.RequestDispatcher.forward(RequestDispatcher.java:331)
at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:227)
at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: Failed to instantiate class hudson.plugins.mercurial.MercurialSCM from {"value":"2","installation":"Mercurial (auto-install)","source":"https:,"credentialsId":"","branch":"default","modules":"","clean":false,"subdir":"","":"2","browser":{"stapler-class<span class="code-quote">":"hudson.plugins.mercurial.browser.GoogleCode","url":"https://code.google.com/p/boost-maven-project/"}}
at hudson.model.Descriptor.newInstance(Descriptor.java:576)
at hudson.plugins.mercurial.MercurialSCM$DescriptorImpl.newInstance(MercurialSCM.java:844)
at hudson.plugins.mercurial.MercurialSCM$DescriptorImpl.newInstance(MercurialSCM.java:818)
at hudson.scm.SCMS.parseSCM(SCMS.java:63)
at hudson.model.AbstractProject.submit(AbstractProject.java:1999)
at hudson.model.Project.submit(Project.java:202)
at hudson.model.Job.doConfigSubmit(Job.java:1136)
at hudson.model.AbstractProject.doConfigSubmit(AbstractProject.java:784)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:297)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:160)
at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:95)
at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:111)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:685)
... 58 more
Caused by: java.lang.IllegalArgumentException: Failed to instantiate class hudson.plugins.mercurial.MercurialSCM from {"value":"2","installation":"Mercurial (auto-install)","source":"https:,"credentialsId":"","branch":"default","modules":"","clean":false,"subdir":"","":"2","browser":{"stapler-class<span class="code-quote">":"hudson.plugins.mercurial.browser.GoogleCode","url":"https://code.google.com/p/boost-maven-project/"}}
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:597)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:392)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:388)
at hudson.model.Descriptor.newInstance(Descriptor.java:567)
... 75 more
Caused by: java.lang.IllegalArgumentException: Failed to convert the browser parameter of the constructor public hudson.plugins.mercurial.MercurialSCM(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,hudson.plugins.mercurial.browser.HgBrowser,boolean,java.lang.String)
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:591)
... 78 more
Caused by: java.lang.IllegalArgumentException: Failed to instantiate class hudson.plugins.mercurial.browser.HgBrowser from {"stapler-class":"hudson.plugins.mercurial.browser.GoogleCode","url":"https:}
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:597)
at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:392)
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:589)
... 78 more
Caused by: java.lang.IllegalArgumentException: java.net.MalformedURLException: GoogleCode browser URL (currently: https: at org.kohsuke.stapler.RequestImpl.invokeConstructor(RequestImpl.java:454)
at org.kohsuke.stapler.RequestImpl.access$200(RequestImpl.java:77)
at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:595)
... 80 more
Caused by: java.net.MalformedURLException: GoogleCode browser URL (currently: https: at hudson.plugins.mercurial.browser.GoogleCode.<init>(GoogleCode.java:28)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.kohsuke.stapler.RequestImpl.invokeConstructor(RequestImpl.java:439)
... 82 more
1.47 will already display such an error message during configuration. It would be nice to redirect you to the configuration screen when Save is clicked despite the presence of erroneous data, but as far as I know Jenkins does not offer an API to do that.