Getting com.fasterxml.jackson.databind.JsonMappingException: (was java.lang.NullPointerException) error while sending WNS Tile or Toast

[nirav9261]

Getting below error while sending WNS Tile or Toast even after installing libraries with dependencies.

Exception : com.fasterxml.jackson.databind.JsonMappingException: (was java.lang.NullPointerException) (through reference chain: ar.com.fernandospr.wns.model.WnsTile["visual"]->ar.com.fernandospr.wns.model.WnsVisual["binding"]->ar.com.fernandospr.wns.model.WnsBinding["text"]->java.util.ArrayList[0]->ar.com.fernandospr.wns.model.WnsText["id"]) javax.ws.rs.ProcessingException: com.fasterxml.jackson.databind.JsonMappingException: (was java.lang.NullPointerException) (through reference chain: ar.com.fernandospr.wns.model.WnsTile["visual"]->ar.com.fernandospr.wns.model.WnsVisual["binding"]->ar.com.fernandospr.wns.model.WnsBinding["text"]->java.util.ArrayList[0]->ar.com.fernandospr.wns.model.WnsText["id"]) at org.glassfish.jersey.client.HttpUrlConnector.apply(HttpUrlConnector.java:245) at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:246) at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:667) at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:664) at org.glassfish.jersey.internal.Errors.process(Errors.java:315) at org.glassfish.jersey.internal.Errors.process(Errors.java:297) at org.glassfish.jersey.internal.Errors.process(Errors.java:228) at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:444) at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:664) at ar.com.fernandospr.wns.client.WnsClient.push(WnsClient.java:135) at ar.com.fernandospr.wns.WnsService.pushTile(WnsService.java:84) at ar.com.fernandospr.wns.WnsService.pushTile(WnsService.java:72) at com.tcs.sgv.communication.bo.CmnCommunicationBO.WNSBroadCast(CmnCommunicationBO.java:1111) at com.tcs.sgv.communication.bo.CmnCommunicationBO.sendPushNotification(CmnCommunicationBO.java:856) at com.tcs.sgv.communication.zk.composer.NewCommunicationComposer.onClick$btnSave(NewCommunicationComposer.java:354) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.zkoss.zk.ui.event.GenericEventListener.onEvent(GenericEventListener.java:87) at com.tcs.sgv.zk.common.composer.GenericComposer.onEvent(GenericComposer.java:424) at org.zkoss.zk.ui.impl.EventProcessor.process0(EventProcessor.java:193) at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:138) at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.process0(EventProcessingThreadImpl.java:518) at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.sendEvent(EventProcessingThreadImpl.java:121) at org.zkoss.zk.ui.event.Events.sendEvent(Events.java:318) at org.zkoss.zk.ui.event.Events.sendEvent(Events.java:329) at org.zkoss.zk.ui.AbstractComponent$ForwardListener.onEvent(AbstractComponent.java:3022) at org.zkoss.zk.ui.impl.EventProcessor.process0(EventProcessor.java:193) at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:138) at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.process0(EventProcessingThreadImpl.java:518) at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.run(EventProcessingThreadImpl.java:444) Caused by: com.fasterxml.jackson.databind.JsonMappingException: (was java.lang.NullPointerException) (through reference chain: ar.com.fernandospr.wns.model.WnsTile["visual"]->ar.com.fernandospr.wns.model.WnsVisual["binding"]->ar.com.fernandospr.wns.model.WnsBinding["text"]->java.util.ArrayList[0]->ar.com.fernandospr.wns.model.WnsText["id"]) at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:210) at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:177) at com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:190) at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializerBase.serializeFields(XmlBeanSerializerBase.java:219) at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializer.serialize(XmlBeanSerializer.java:119) at com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serializeContents(IndexedListSerializer.java:113) at com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serialize(IndexedListSerializer.java:73) at com.fasterxml.jackson.databind.ser.impl.IndexedListSerializer.serialize(IndexedListSerializer.java:19) at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:575) at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializerBase.serializeFields(XmlBeanSerializerBase.java:202) at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializer.serialize(XmlBeanSerializer.java:119) at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:575) at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializerBase.serializeFields(XmlBeanSerializerBase.java:202) at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializer.serialize(XmlBeanSerializer.java:119) at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:575) at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializerBase.serializeFields(XmlBeanSerializerBase.java:202) at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializer.serialize(XmlBeanSerializer.java:119) at com.fasterxml.jackson.dataformat.xml.ser.XmlSerializerProvider.serializeValue(XmlSerializerProvider.java:92) at com.fasterxml.jackson.databind.ObjectWriter.writeValue(ObjectWriter.java:851) at com.fasterxml.jackson.jaxrs.base.ProviderBase.writeTo(ProviderBase.java:648) at org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.invokeWriteTo(WriterInterceptorExecutor.java:265) at org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.aroundWriteTo(WriterInterceptorExecutor.java:250) at org.glassfish.jersey.message.internal.WriterInterceptorExecutor.proceed(WriterInterceptorExecutor.java:162) at org.glassfish.jersey.filter.LoggingFilter.aroundWriteTo(LoggingFilter.java:295) at org.glassfish.jersey.message.internal.WriterInterceptorExecutor.proceed(WriterInterceptorExecutor.java:162) at org.glassfish.jersey.message.internal.MessageBodyFactory.writeTo(MessageBodyFactory.java:1118) at org.glassfish.jersey.client.ClientRequest.writeEntity(ClientRequest.java:503) at org.glassfish.jersey.client.HttpUrlConnector._apply(HttpUrlConnector.java:331) at org.glassfish.jersey.client.HttpUrlConnector.apply(HttpUrlConnector.java:243) at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:246) at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:667) at org.glassfish.jersey.client.JerseyInvocation$1.call(JerseyInvocation.java:664) at org.glassfish.jersey.internal.Errors.process(Errors.java:315) at org.glassfish.jersey.internal.Errors.process(Errors.java:297) at org.glassfish.jersey.internal.Errors.process(Errors.java:228) at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:444) at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:664) at ar.com.fernandospr.wns.client.WnsClient.push(WnsClient.java:135) at ar.com.fernandospr.wns.WnsService.pushTile(WnsService.java:84) at ar.com.fernandospr.wns.WnsService.pushTile(WnsService.java:72) at com.tcs.sgv.communication.bo.CmnCommunicationBO.WNSBroadCast(CmnCommunicationBO.java:1109) at com.tcs.sgv.communication.bo.CmnCommunicationBO.sendPushNotification(CmnCommunicationBO.java:856) at com.tcs.sgv.communication.zk.composer.NewCommunicationComposer.onClick$btnSave(NewCommunicationComposer.java:354) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.zkoss.zk.ui.event.GenericEventListener.onEvent(GenericEventListener.java:87) at com.tcs.sgv.zk.common.composer.GenericComposer.onEvent(GenericComposer.java:424) at org.zkoss.zk.ui.impl.EventProcessor.process0(EventProcessor.java:192) at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:138) at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.process0(EventProcessingThreadImpl.java:517) at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.sendEvent(EventProcessingThreadImpl.java:121) at org.zkoss.zk.ui.event.Events.sendEvent(Events.java:318) at org.zkoss.zk.ui.event.Events.sendEvent(Events.java:328) at org.zkoss.zk.ui.AbstractComponent$ForwardListener.onEvent(AbstractComponent.java:3022) at org.zkoss.zk.ui.impl.EventProcessor.process0(EventProcessor.java:192) at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:138) at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.process0(EventProcessingThreadImpl.java:517) ... 1 more Caused by: java.lang.NullPointerException at java.io.Writer.write(Writer.java:140) at weblogic.xml.stax.XMLWriterBase.write(XMLWriterBase.java:79) at weblogic.xml.stax.XMLWriterBase.writeName(XMLWriterBase.java:294) at weblogic.xml.stax.XMLWriterBase.writeAttribute(XMLWriterBase.java:567) at org.codehaus.stax2.ri.Stax2WriterAdapter.writeIntAttribute(Stax2WriterAdapter.java:191) at com.fasterxml.jackson.dataformat.xml.ser.ToXmlGenerator.writeNumber(ToXmlGenerator.java:759) at com.fasterxml.jackson.databind.ser.std.NumberSerializers$IntegerSerializer.serialize(NumberSerializers.java:143) at com.fasterxml.jackson.databind.ser.std.NumberSerializers$IntegerSerializer.serialize(NumberSerializers.java:136) at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:575) at com.fasterxml.jackson.dataformat.xml.ser.XmlBeanSerializerBase.serializeFields(XmlBeanSerializerBase.java:202) ... 56 more

[nirav9261]

Written below code to push from server.

boolean logging = true; String sid = "mySID"; String clientSecret = "clientSecret"; WnsService service = new WnsService(sid, clientSecret, logging);

  String channelUri = data.get("tokenId").toString();
  if ((data.get("Title") != null) && (data.get("Content") != null))
  {
    WnsTile tile = new WnsTileBuilder().bindingTemplateTileWideText03("Hello world").build();
    service.pushTile(channelUri, tile);

    WnsBadge badge = new WnsBadgeBuilder().value(Integer.valueOf(1)).build();
    service.pushBadge(channelUri, badge);

    WnsToast toast = new WnsToastBuilder().bindingTemplateToastText02(data.get("Title").toString(), data.get("Content").toString()).build();
    WnsNotificationResponse wnsResponse = service.pushToast(channelUri, toast);

}

From references found online, it seems I need to amend code in java-wns.jar.

Can you please help.

Thanks.

[nirav9261]

@fernandospr : can you please look in issue I am facing. Thanks.

[fernandospr]

Hi @nirav9261, sorry for the delay in the response. Unfortunately, it's difficult for me to continue giving support on this library as I don't have a device to test. However, if you want, you can develop the fix and submit a pull request.