Null CartProduct Error

[msaroshali]

[2024/06/14-09:54:49.903] ERROR [qtp945591847-1835] ninja.NinjaDefault - Emitting bad request 500. Something really wrong when calling route: /updateProductCount (class: class controllers.CartController method: public ninja.Result controllers.CartController.updateProductCount(int,java.lang.String,ninja.Context))
java.lang.NullPointerException: Cannot invoke "models.CartProduct.getProduct()" because "cartProduct" is null
at controllers.CartController.updateProductCount(CartController.java:128)
at jdk.internal.reflect.GeneratedMethodAccessor81.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at ninja.params.ControllerMethodInvoker.invoke(ControllerMethodInvoker.java:76)
at ninja.FilterChainEnd.next(FilterChainEnd.java:45)
at filters.SessionTerminatedFilter.filter(SessionTerminatedFilter.java:56)
at ninja.FilterChainImpl.next(FilterChainImpl.java:36)
at ninja.NinjaDefault.onRouteRequest(NinjaDefault.java:112)
at ninja.servlet.NinjaServletDispatcher.service(NinjaServletDispatcher.java:86)
at com.google.inject.servlet.ServletDefinition.doServiceImpl(ServletDefinition.java:290)
at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:280)
at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:184)
at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:89)
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:85)
at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:121)
at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:133)
at ninja.servlet.NinjaServletFilter.doFilter(NinjaServletFilter.java:106)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1434)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1349)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:763)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:516)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:400)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:645)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:392)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:555)
at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:410)
at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:164)
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:409)
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.base/java.lang.Thread.run(Thread.java:840)