When spec contains operation without tags, error occurs:
java.lang.NullPointerException
at java.base/java.util.Objects.requireNonNull(Objects.java:221)
at java.base/java.util.stream.Collectors.lambda$uniqKeysMapAccumulator$1(Collectors.java:178)
at java.base/java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169)
at java.base/java.util.TreeMap$EntrySpliterator.forEachRemaining(TreeMap.java:2962)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
at com.github.viclovsky.swagger.coverage.core.results.builder.postbuilder.TagStatisticsBuilder.configure(TagStatisticsBuilder.java:48)
at com.github.viclovsky.swagger.coverage.core.results.builder.postbuilder.TagStatisticsBuilder.configure(TagStatisticsBuilder.java:24)
at com.github.viclovsky.swagger.coverage.configuration.Configuration.lambda$getStatisticsBuilders$2(Configuration.java:44)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1654)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
at com.github.viclovsky.swagger.coverage.configuration.Configuration.getStatisticsBuilders(Configuration.java:46)
When spec contains operation without tags, error occurs: