Uploading camtrap DP datapackage JSON, then trying to edit leads to error

[jevansbio]

While attempting to add records using a camtrap DP dataset to nlbif (ipt Version 3.0.4-r8c5a5cb), I uploaded the datapackage.JSON as metadata. While this seems to upload successfully, attempting to edit the metadata manually after this resulted in the following error:

Technical Details
java.lang.NullPointerException: Cannot invoke "java.util.Date.after(java.util.Date)" because the return value of "org.gbif.ipt.model.Resource.getMappingsModified()" is null
	at org.gbif.ipt.action.manage.DataPackageMetadataAction.prepareCamtrap(DataPackageMetadataAction.java:261)
	at org.gbif.ipt.action.manage.DataPackageMetadataAction.prepare(DataPackageMetadataAction.java:238)
	at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
	at com.google.inject.struts2.Struts2Factory$ProvidedInterceptor.intercept(Struts2Factory.java:236)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
	at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:167)
	at com.google.inject.struts2.Struts2Factory$ProvidedInterceptor.intercept(Struts2Factory.java:236)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
	at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:196)
	at com.google.inject.struts2.Struts2Factory$ProvidedInterceptor.intercept(Struts2Factory.java:236)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
	at org.apache.struts2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:121)
	at com.google.inject.struts2.Struts2Factory$ProvidedInterceptor.intercept(Struts2Factory.java:236)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
	at org.gbif.ipt.struts2.DefaultLocaleInterceptor.intercept(DefaultLocaleInterceptor.java:42)
	at com.google.inject.struts2.Struts2Factory$ProvidedInterceptor.intercept(Struts2Factory.java:236)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
	at org.gbif.ipt.struts2.RedirectMessageInterceptor.doIntercept(RedirectMessageInterceptor.java:134)
	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:99)
	at com.google.inject.struts2.Struts2Factory$ProvidedInterceptor.intercept(Struts2Factory.java:236)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
	at org.gbif.ipt.struts2.SetupAndCancelInterceptor.intercept(SetupAndCancelInterceptor.java:106)
	at com.google.inject.struts2.Struts2Factory$ProvidedInterceptor.intercept(Struts2Factory.java:236)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
	at org.gbif.ipt.struts2.ResourceSessionInterceptor.intercept(ResourceSessionInterceptor.java:54)
	at com.google.inject.struts2.Struts2Factory$ProvidedInterceptor.intercept(Struts2Factory.java:236)
	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249)
	at org.apache.struts2.factory.StrutsActionProxy.execute(StrutsActionProxy.java:48)
	at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:574)
	at org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:79)
	at org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:141)
	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)
	at org.gbif.ipt.struts2.CorsFilter.doFilter(CorsFilter.java:37)
	at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)
	at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:121)
	at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:133)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:168)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:144)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:660)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:388)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1190)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
	at java.base/java.lang.Thread.run(Thread.java:840)

Though this particular record upload seemed to be stuck like this (uploading a different JSON resulted in the same error), creating a new record and uploading the same file again did not reproduce this error.

[mike-podolskiy90]

Thank you for reporting this issue @jevansbio