Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Google Groups by Unknown author, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at io.druid.query.aggregation.LongSumAggregatorFactory.factorize(LongSumAggregatorFactory.java:61)	at io.druid.segment.incremental.OnheapIncrementalIndex.factorizeAggs(OnheapIncrementalIndex.java:212)	at io.druid.segment.incremental.OnheapIncrementalIndex.addToFacts(OnheapIncrementalIndex.java:176)	at io.druid.segment.incremental.IncrementalIndex.add(IncrementalIndex.java:568)	at io.druid.query.groupby.GroupByQueryHelper$3.accumulate(GroupByQueryHelper.java:123)	at io.druid.query.groupby.GroupByQueryHelper$3.accumulate(GroupByQueryHelper.java:115)	at com.metamx.common.guava.MappingAccumulator.accumulate(MappingAccumulator.java:39)	at com.metamx.common.guava.YieldingAccumulators$1.accumulate(YieldingAccumulators.java:32)	at com.metamx.common.guava.BaseSequence.makeYielder(BaseSequence.java:104)	at com.metamx.common.guava.BaseSequence.toYielder(BaseSequence.java:81)	at com.metamx.common.guava.ConcatSequence.makeYielder(ConcatSequence.java:93)	at com.metamx.common.guava.ConcatSequence.toYielder(ConcatSequence.java:72)	at com.metamx.common.guava.ResourceClosingSequence.toYielder(ResourceClosingSequence.java:41)	at com.metamx.common.guava.YieldingSequenceBase.accumulate(YieldingSequenceBase.java:34)	at io.druid.query.MetricsEmittingQueryRunner$1.accumulate(MetricsEmittingQueryRunner.java:118)	at com.metamx.common.guava.MappedSequence.accumulate(MappedSequence.java:40)	at com.metamx.common.guava.Sequences$1.accumulate(Sequences.java:90)	at io.druid.query.MetricsEmittingQueryRunner$1.accumulate(MetricsEmittingQueryRunner.java:118)	at io.druid.query.spec.SpecificSegmentQueryRunner$2$1.call(SpecificSegmentQueryRunner.java:87)	at io.druid.query.spec.SpecificSegmentQueryRunner.doNamed(SpecificSegmentQueryRunner.java:171)	at io.druid.query.spec.SpecificSegmentQueryRunner.access$400(SpecificSegmentQueryRunner.java:41)	at io.druid.query.spec.SpecificSegmentQueryRunner$2.doItNamed(SpecificSegmentQueryRunner.java:162)	at io.druid.query.spec.SpecificSegmentQueryRunner$2.accumulate(SpecificSegmentQueryRunner.java:80)	at io.druid.query.CPUTimeMetricQueryRunner$1.accumulate(CPUTimeMetricQueryRunner.java:81)	at com.metamx.common.guava.Sequences$1.accumulate(Sequences.java:90)	at io.druid.query.GroupByMergedQueryRunner$1$1.call(GroupByMergedQueryRunner.java:127)	at io.druid.query.GroupByMergedQueryRunner$1$1.call(GroupByMergedQueryRunner.java:117)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at io.druid.query.PrioritizedListenableFutureTask.run(PrioritizedExecutorService.java:271)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)