Jenkins failed to process Github webhook and trigger the pull request build

We configured webook, and github action sending payload to jenkins, where as for push events, builds are triggering where as for pull_requests, builds are not triggering and I seeing that unable to process the payload in jenkins log. May I know what could be the issue for unable to processing .

webhook.yml

name: Github-Webhook-Mapps-Jenkins

# Controls when the workflow will run
on:
  # Triggers the workflow on push events but only for the Apple-API-Key branch
  push:
    branches:
      - 'jenkins'
      - 'release/**'
  pull_request:
  
jobs:
  # This workflow contains a single job called "build"
  build:
    # The type of runner that the job will run on
    runs-on: webhooks
    steps:
      - name: Trigger Jenkins
        env:
          WEBHOOK_EVENT: ${{ toJson(github.event) }}
        run: |
          echo "$WEBHOOK_EVENT"
          curl --header "X-GitHub-Event: push" --header "Content-Type: application/json" -X POST --data "$WEBHOOK_EVENT" https://jenkins_url/github-webhook/

Subscriber org.jenkinsci.plugins.github.webhook.subscriber.DefaultPushGHEventSubscriber failed to process SCMEvent{type=UPDATED, timestamp=Fri Mar 17 14:30:16 CDT 2023, payload={
//payload contents//
} origin= x.x.x.x ⇒ https://jenkins-url/github-webhook/} hook, skipping…
java.lang.NullPointerException
at org.jenkinsci.plugins.github.webhook.subscriber.DefaultPushGHEventSubscriber.onEvent(DefaultPushGHEventSubscriber.java:77)
at org.jenkinsci.plugins.github.extension.GHEventsSubscriber$4.applyNullSafe(GHEventsSubscriber.java:241)
at org.jenkinsci.plugins.github.extension.GHEventsSubscriber$4.applyNullSafe(GHEventsSubscriber.java:237)
at org.jenkinsci.plugins.github.util.misc.NullSafeFunction.apply(NullSafeFunction.java:18)
at com.google.common.collect.Iterators$8.next(Iterators.java:812)
at com.google.common.collect.Lists.newArrayList(Lists.java:139)
at com.google.common.collect.Lists.newArrayList(Lists.java:119)
at org.jenkinsci.plugins.github.util.FluentIterableWrapper.toList(FluentIterableWrapper.java:148)
at com.cloudbees.jenkins.GitHubWebHook.doIndex(GitHubWebHook.java:124)
at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627)
at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:393)
at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:405)
at org.jenkinsci.plugins.github.webhook.RequirePostWithGHHookPayload$Processor.invoke(RequirePostWithGHHookPayload.java:80)
at org.kohsuke.stapler.PreInvokeInterceptedFunction.invoke(PreInvokeInterceptedFunction.java:26)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:208)
at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:141)
at org.kohsuke.stapler.IndexDispatcher.dispatch(IndexDispatcher.java:27)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898)
at org.kohsuke.stapler.MetaClass$9.dispatch(MetaClass.java:457)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:766)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:898)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:694)
at org.kohsuke.stapler.Stapler.service(Stapler.java:240)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799)
at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1626)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:156)
at jenkins.telemetry.impl.UserLanguages$AcceptLanguageFilter.doFilter(UserLanguages.java:128)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153)
at jenkins.security.ResourceDomainFilter.doFilter(ResourceDomainFilter.java:80)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153)
at hudson.plugins.audit_trail.AuditTrailFilter.doFilter(AuditTrailFilter.java:112)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153)
at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:64)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153)
at jenkins.metrics.impl.MetricsFilter.doFilter(MetricsFilter.java:125)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153)
at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:239)
at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:215)
at net.bull.javamelody.PluginMonitoringFilter.doFilter(PluginMonitoringFilter.java:88)
at org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:121)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:153)
at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:159)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
at com.cloudbees.jenkins.GitHubWebHookCrumbExclusion.process(GitHubWebHookCrumbExclusion.java:29)
at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:127)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:92)
at jenkins.security.AcegiSecurityExceptionFilter.doFilter(AcegiSecurityExceptionFilter.java:52)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97)
at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:53)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:121)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:105)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:133)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:92)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:218)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:212)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97)
at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:97)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80)
at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:62)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:97)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:109)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:51)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:85)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
at jenkins.security.SuspiciousRequestFilter.doFilter(SuspiciousRequestFilter.java:39)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:578)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1434)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1349)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:516)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:386)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034)
at java.lang.Thread.run(Thread.java:750)

Mar 17, 2023 2:30:21 PM WARNING jenkins.scm.api.SCMHeadEvent$DispatcherImpl log
SCMEventListener.onSCMHeadEvent(SCMHeadEvent) jenkins.branch.MultiBranchProject$SCMEventListenerImpl@3c98d24a propagated an exception
java.lang.NullPointerException
at org.jenkinsci.plugins.github_branch_source.PushGHEventSubscriber$SCMHeadEventImpl.description(PushGHEventSubscriber.java:233)
at jenkins.branch.MultiBranchProject$SCMEventListenerImpl.onSCMHeadEvent(MultiBranchProject.java:1162)
at jenkins.scm.api.SCMHeadEvent$DispatcherImpl.fire(SCMHeadEvent.java:246)
at jenkins.scm.api.SCMHeadEvent$DispatcherImpl.fire(SCMHeadEvent.java:229)
at jenkins.scm.api.SCMEvent$Dispatcher.run(SCMEvent.java:546)
at jenkins.security.ImpersonatingScheduledExecutorService$1.run(ImpersonatingScheduledExecutorService.java:67)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)

Mar 17, 2023 2:30:21 PM WARNING jenkins.scm.api.SCMHeadEvent$DispatcherImpl log
SCMEventListener.onSCMHeadEvent(SCMHeadEvent) jenkins.branch.OrganizationFolder$SCMEventListenerImpl@7c588faa propagated an exception
java.lang.NullPointerException
at org.jenkinsci.plugins.github_branch_source.PushGHEventSubscriber$SCMHeadEventImpl.description(PushGHEventSubscriber.java:233)
at jenkins.branch.OrganizationFolder$SCMEventListenerImpl.onSCMHeadEvent(OrganizationFolder.java:985)
at jenkins.scm.api.SCMHeadEvent$DispatcherImpl.fire(SCMHeadEvent.java:246)
at jenkins.scm.api.SCMHeadEvent$DispatcherImpl.fire(SCMHeadEvent.java:229)
at jenkins.scm.api.SCMEvent$Dispatcher.run(SCMEvent.java:546)
at jenkins.security.ImpersonatingScheduledExecutorService$1.run(ImpersonatingScheduledExecutorService.java:67)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)

The issue is resolved. Updated with ${{ github.event_name }}