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java.lang.NullPointerException: 	at hudson.scm.SubversionSCM.(SubversionSCM.java:319)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:532)	at org.kohsuke.stapler.RequestImpl.invokeConstructor(RequestImpl.java:447)	at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:690)	at org.kohsuke.stapler.RequestImpl.access$100(RequestImpl.java:81)	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:587)	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:400)	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:396)	at hudson.model.Descriptor.newInstance(Descriptor.java:569)	at hudson.scm.SubversionSCM$DescriptorImpl.newInstance(SubversionSCM.java:1791)	at hudson.scm.SubversionSCM$DescriptorImpl.newInstance(SubversionSCM.java:1453)	at hudson.model.Descriptor$1.instantiate(Descriptor.java:1046)	at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:665)	at org.kohsuke.stapler.RequestImpl.access$100(RequestImpl.java:81)	at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:587)	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:400)	at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:396)	at hudson.model.Descriptor.newInstance(Descriptor.java:569)	at hudson.scm.SubversionSCM$DescriptorImpl.newInstance(SubversionSCM.java:1791)	at hudson.scm.SubversionSCM$DescriptorImpl.newInstance(SubversionSCM.java:1453)	at hudson.scm.SCMS.parseSCM(SCMS.java:63)	at hudson.model.AbstractProject.submit(AbstractProject.java:2002)	at hudson.model.Project.submit(Project.java:202)	at hudson.model.Job.doConfigSubmit(Job.java:1136)	at hudson.model.AbstractProject.doConfigSubmit(AbstractProject.java:787)	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:616)	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:120)	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:727)	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:841)	at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:248)	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:727)	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:841)	at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:248)	at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)	at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:727)	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:841)	at org.kohsuke.stapler.Stapler.invoke(Stapler.java:630)	at org.kohsuke.stapler.Stapler.service(Stapler.java:224)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:686)	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494)	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96)	at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:58)	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99)	at hudson.plugins.audit_trail.AuditTrailFilter.doFilter(AuditTrailFilter.java:66)	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99)	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:208)	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:181)	at net.bull.javamelody.PluginMonitoringFilter.doFilter(PluginMonitoringFilter.java:86)	at org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:84)	at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:99)	at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88)	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)	at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48)	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)	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$1.doFilter(ChainedServletFilter.java:87)	at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)	at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)	at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46)	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)	at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1474)	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533)	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)	at org.eclipse.jetty.server.Server.handle(Server.java:370)	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)	at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960)	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021)	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)	at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668)	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)	at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:679)