Facing below issue when creating pipeline in Jenkins which polls the AbInitio EME under SCM.

Stack trace
java.lang.NullPointerException
 at EMEJenkinsPlugin.EME_SCM.<init>(EME_SCM.java:250)
 at sun.reflect.GeneratedConstructorAccessor448.newInstance(Unknown Source)
 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
 at org.kohsuke.stapler.RequestImpl.invokeConstructor(RequestImpl.java:529)
 at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:784)
 at org.kohsuke.stapler.RequestImpl.access$200(RequestImpl.java:83)
 at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:678)
 at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:478)
 at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:778)
 at org.kohsuke.stapler.RequestImpl.access$200(RequestImpl.java:83)
 at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:678)
 at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:478)
 at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:474)
 at org.jenkinsci.plugins.workflow.job.WorkflowJob.submit(WorkflowJob.java:183)
 at hudson.model.Job.doConfigSubmit(Job.java:1350)
 at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627)
 at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:396)
 at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:408)
 at org.kohsuke.stapler.interceptor.RequirePOST$Processor.invoke(RequirePOST.java:77)
 at org.kohsuke.stapler.PreInvokeInterceptedFunction.invoke(PreInvokeInterceptedFunction.java:26)
 at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:212)
 at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:145)
 at org.kohsuke.stapler.MetaClass$11.doDispatch(MetaClass.java:537)
 at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
 at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:739)
Caused: javax.servlet.ServletException
 at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:789)
 at org.kohsuke.stapler.Stapler.invoke(Stapler.java:870)
 at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:282)
 at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58)
 at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:739)
 at org.kohsuke.stapler.Stapler.invoke(Stapler.java:870)
 at org.kohsuke.stapler.Stapler.invoke(Stapler.java:668)
 at org.kohsuke.stapler.Stapler.service(Stapler.java:238)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
 at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
 at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:154)
 at com.cloudbees.jenkins.support.slowrequest.SlowRequestFilter.doFilter(SlowRequestFilter.java:37)
 at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:151)
 at javax.servlet.FilterChain$doFilter$3.call(Unknown Source)
 at com.ceilfors.jenkins.plugins.jiratrigger.ExceptionLoggingFilter.doFilter(ExceptionLoggingFilter.groovy:29)
 at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:151)
 at jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:125)
 at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:151)
 at jenkins.telemetry.impl.UserLanguages$AcceptLanguageFilter.doFilter(UserLanguages.java:128)
 at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:151)
 at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:157)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
 at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:99)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
 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 jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:93)
 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:90)
 at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
 at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
 at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
 at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)
 at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:608)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
 at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)
 at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1156)
 at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)
 at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1539)
 at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1495)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
 at java.lang.Thread.run(Thread.java:748)