1. java.lang.NullPointerException: null
2. at com.pearson.ltg.rubric.service.RubricSessionService.lambda$getMatchingDimensionOutcomeMapping$16(RubricSessionService.java:95) ~[classes!/:na]
3. at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174) ~[na:1.8.0_172]
4. at java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1359) ~[na:1.8.0_172]
5. at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126) ~[na:1.8.0_172]
6. at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:498) ~[na:1.8.0_172]
7. at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485) ~[na:1.8.0_172]
8. at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_172]
9. at java.util.stream.FindOps$FindTask.doLeaf(FindOps.java:285) ~[na:1.8.0_172]
10. at java.util.stream.AbstractShortCircuitTask.compute(AbstractShortCircuitTask.java:115) ~[na:1.8.0_172]
11. at java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:731) ~[na:1.8.0_172]
12. at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[na:1.8.0_172]
13. at java.util.concurrent.ForkJoinTask.doInvoke(ForkJoinTask.java:401) ~[na:1.8.0_172]
14. at java.util.concurrent.ForkJoinTask.invoke(ForkJoinTask.java:734) ~[na:1.8.0_172]
15. at java.util.stream.FindOps$FindOp.evaluateParallel(FindOps.java:159) ~[na:1.8.0_172]
16. at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:233) ~[na:1.8.0_172]
17. at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464) ~[na:1.8.0_172]
18. at com.pearson.ltg.rubric.service.RubricSessionService.getMatchingDimensionOutcomeMapping(RubricSessionService.java:96) ~[classes!/:na]
19. at com.pearson.ltg.rubric.service.RubricSessionService.lambda$createAggregatedObject$15(RubricSessionService.java:74) ~[classes!/:na]
20. at java.util.ArrayList.forEach(ArrayList.java:1257) ~[na:1.8.0_172]
21. at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) ~[na:1.8.0_172]
22. at com.pearson.ltg.rubric.service.RubricSessionService.createAggregatedObject(RubricSessionService.java:73) ~[classes!/:na]
23. at com.pearson.ltg.rubric.service.RubricSessionService.lambda$getRubricWithRubricSession$13(RubricSessionService.java:62) ~[classes!/:na]