[HBASE-21076] TestTableResource fails with NPE

• Type: Test
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1, 1.5.0, 1.3.3, 2.1.1, 2.0.2, 1.4.7
• Fix Version/s: 3.0.0-alpha-1, 1.3.3, 2.2.0, 1.2.7, 2.1.1, 2.0.2, 1.4.7
• Component/s: REST, test
• Assignee: Sean Busbey
• Reporter: Ted Yu
• Created: 20/Aug/18 15:32
• Updated: 01/Feb/19 20:29
• Resolved: 23/Aug/18 01:49

Description

The following can be observed in master branch:

java.lang.NullPointerException
	at org.apache.hadoop.hbase.rest.TestTableResource.setUpBeforeClass(TestTableResource.java:134)

The NPE comes from the following in TestEndToEndSplitTransaction :

        compactAndBlockUntilDone(TEST_UTIL.getAdmin(),
          TEST_UTIL.getMiniHBaseCluster().getRegionServer(0), daughterA.getRegionName());

Initial check of the code shows that TestEndToEndSplitTransaction uses TEST_UTIL instance which is created within TestEndToEndSplitTransaction. However, TestTableResource creates its own instance of HBaseTestingUtility.
Meaning TEST_UTIL.getMiniHBaseCluster() would return null, since the instance created by TestEndToEndSplitTransaction has hbaseCluster as null.

Issue Links

• is broken by: HBASE-20940 HStore.cansplit should not allow split to happen if it has references
• is broken by: HBASE-17080 rest.TestTableResource fails in master branch
• is duplicated by: HBASE-21086 NPE in TestTableResource
• is duplicated by: HBASE-21099 NPE in TestTableResource.setUpBeforeClass (TestTableResource.java:134)