Issue Summary

After upgrading Jira from 10.3.19 to 11.3.6, the 2D Filter Statistics dashboard gadget fails to render and remains in a perpetual loading state when:

• The Y-axis is configured to a field such as "Fix Version/s (all)"

• The underlying filter returns at least one issue whose issue type's field configuration excludes that Y-axis field (e.g., a "Story" issue type that does not use Fix Version/s)

In Jira 10.3.x, such issues were correctly aggregated under an "Irrelevant" row in the gadget. In 11.3.6, the gadget REST endpoint /rest/gadget/1.0/twodimensionalfilterstats/generate returns HTTP 500 with a NullPointerException thrown from TwoDimensionalStatsResource.optionallyAddIrrelevantRow() and gadget keeps loading.

Steps to Reproduce

1. In Jira 11.3.6, create at least one custom issue type (e.g., "Container") and assign it a field configuration that does NOT include the "Fix Version/s" field.
2. Create at least one issue using that issue type in any project.
3. Create or use a saved filter whose results include at least one such issue (in addition to issues that DO use Fix Version/s).
4. Add a "2D Filter Statistics" gadget to a dashboard.
5. Configure the gadget with:
   • Saved Filter: the filter from step 3
   • X-Axis: Assignee
   • Y-Axis: Fix Version/s (all)
6. Load/refresh the dashboard.

Expected Results

The gadget renders successfully and displays:

• One row per Fix Version

• An "Unscheduled" row for issues with no Fix Version assigned

• An "Irrelevant" row for issues whose issue type field configuration does not include Fix Version/s

(This is the behavior observed in Jira 10.3.19.)

Actual Results

• The gadget shows a perpetual loading indicator and never renders (see attached screenshot)
• The REST endpoint /rest/gadget/1.0/twodimensionalfilterstats/generate returns HTTP 500.
• The Jira application log shows a NullPointerException originating in TwoDimensionalStatsResource.optionallyAddIrrelevantRow . Below is the stack trace

  2026-05-22 15:57:11,009+0200 http-nio-8080-exec-15 url: /rest/gadget/1.0/twodimensionalfilterstats/generate; user: RM ERROR RM 957x23673x1 1wexcz6 x.x.x.x /rest/gadget/1.0/twodimensionalfilterstats/generate [o.g.jersey.server.ServerRuntime$Responder] An I/O error has occurred while writing a response message entity to the container output stream.
  org.glassfish.jersey.server.internal.process.MappableException: java.lang.NullPointerException: Cannot invoke "Object.equals(Object)" because the return value of "com.atlassian.jira.search.aggregation.twodimensional.Statistic.value()" is null
  	at org.glassfish.jersey.server.internal.MappableExceptionWrapperInterceptor.aroundWriteTo(MappableExceptionWrapperInterceptor.java:67)
  	at org.glassfish.jersey.message.internal.WriterInterceptorExecutor.proceed(WriterInterceptorExecutor.java:139)
  	at org.glassfish.jersey.message.internal.MessageBodyFactory.writeTo(MessageBodyFactory.java:1116)
  	at org.glassfish.jersey.server.ServerRuntime$Responder.writeResponse(ServerRuntime.java:691)
  	at org.glassfish.jersey.server.ServerRuntime$Responder.processResponse(ServerRuntime.java:398)
  	at org.glassfish.jersey.server.ServerRuntime$Responder.process(ServerRuntime.java:388)
  	at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:277)
  	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)
  	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244)
  	at org.glassfish.jersey.internal.Errors.process(Errors.java:292)
  	at org.glassfish.jersey.internal.Errors.process(Errors.java:274)
  	at org.glassfish.jersey.internal.Errors.process(Errors.java:244)
  	at com.atlassian.troubleshooting.thready.filter.AbstractThreadNamingFilter.doFilter(AbstractThreadNamingFilter.java:46)
  	... 3 filtered
  	at com.atlassian.web.servlet.plugin.LocationCleanerFilter.doFilter(LocationCleanerFilter.java:38)
  	... 26 filtered
  	at com.atlassian.jira.servermetrics.MetricsCollectorFilter.doFilter(MetricsCollectorFilter.java:27)
  	... 25 filtered
  	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:973)
  	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:491)
  	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
  	at java.base/java.lang.Thread.run(Thread.java:1583)
  Caused by: java.lang.NullPointerException: Cannot invoke "Object.equals(Object)" because the return value of "com.atlassian.jira.search.aggregation.twodimensional.Statistic.value()" is null
  	at com.atlassian.jira.gadgets.system.TwoDimensionalStatsResource.optionallyAddIrrelevantRow(TwoDimensionalStatsResource.java:414)
  	at com.atlassian.jira.gadgets.system.TwoDimensionalStatsResource.makeSubsequentRows(TwoDimensionalStatsResource.java:331)
  	at com.atlassian.jira.gadgets.system.TwoDimensionalStatsResource.sendStatsUsingSearchApi(TwoDimensionalStatsResource.java:279)
  	at com.atlassian.jira.gadgets.system.TwoDimensionalStatsResource.lambda$getStatsUsingSearchApi$0(TwoDimensionalStatsResource.java:224)
  	at org.glassfish.jersey.message.internal.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:55)
  	at org.glassfish.jersey.message.internal.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:37)
  	at org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.invokeWriteTo(WriterInterceptorExecutor.java:242)
  	at org.glassfish.jersey.message.internal.WriterInterceptorExecutor$TerminalWriterInterceptor.aroundWriteTo(WriterInterceptorExecutor.java:227)
  	at org.glassfish.jersey.message.internal.WriterInterceptorExecutor.proceed(WriterInterceptorExecutor.java:139)
  	at org.glassfish.jersey.server.internal.JsonWithPaddingInterceptor.aroundWriteTo(JsonWithPaddingInterceptor.java:85)
  	at org.glassfish.jersey.message.internal.WriterInterceptorExecutor.proceed(WriterInterceptorExecutor.java:139)
  	at org.glassfish.jersey.server.internal.MappableExceptionWrapperInterceptor.aroundWriteTo(MappableExceptionWrapperInterceptor.java:61)
  	... 342 more
  
  
    

Workaround

• Modify the saved filter to exclude issues whose issue types do not include Fix Version/s in their field configuration (these issues will then be missing from the gadget output).
• Alternatively, swap the X-Axis and Y-Axis values (put Fix Version/s on the X-Axis and Assignee on the Y-Axis) — the issue is specific to the Y-Axis handling.