[KYLIN-1911] NPE when extended column has NULL value

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: v1.5.2, v1.5.2.1
• Fix Version/s: v1.5.3
• Component/s: Query Engine
• Assignee: Hongbin Ma
• Reporter: Shao Feng Shi
• Created: 21/Jul/16 10:01
• Updated: 28/Jul/16 06:48
• Resolved: 24/Jul/16 12:23

Description

Caused by: java.lang.NullPointerException
	at java.lang.String.<init>(String.java:505)
	at org.apache.kylin.measure.extendedcolumn.ExtendedColumnMeasureType$2.reload(ExtendedColumnMeasureType.java:152)
	at org.apache.kylin.storage.hbase.cube.v2.CubeTupleConverter.translateResult(CubeTupleConverter.java:175)
	at org.apache.kylin.storage.hbase.cube.v2.SequentialCubeTupleIterator.hasNext(SequentialCubeTupleIterator.java:116)
	at org.apache.kylin.query.enumerator.OLAPEnumerator.moveNext(OLAPEnumerator.java:74)
	at Baz$1$1.moveNext(Unknown Source)
	at org.apache.calcite.linq4j.EnumerableDefaults.groupBy_(EnumerableDefaults.java:819)
	at org.apache.calcite.linq4j.EnumerableDefaults.groupBy(EnumerableDefaults.java:754)
	at org.apache.calcite.linq4j.DefaultEnumerable.groupBy(DefaultEnumerable.java:302)
	at Baz.bind(Unknown Source)