nightly integration test claims success while showing error parsing shell output

Starting up Hadoop
	waiting for Hadoop to finish starting up.
	waiting for Hadoop to finish starting up.
	waiting for Hadoop to finish starting up.
	waiting for Hadoop to finish starting up.
Verifying configs
WARNING: log4j.properties is not found. HADOOP_CONF_DIR may be incomplete.
/home/jenkins/jenkins-home/workspace/HBase_Nightly_master/output-integration/hadoop-3/hbase-conf/core-site.xml: valid
/home/jenkins/jenkins-home/workspace/HBase_Nightly_master/output-integration/hadoop-3/hbase-conf/hbase-site.xml: valid
OK
Listing HDFS contents
Starting up HBase
running master, logging to /home/jenkins/jenkins-home/workspace/HBase_Nightly_master/hbase-install/bin/../logs/hbase-jenkins-master-jenkins-hbase12.out
	retry waiting for hbase to come up.
Setting up table 'test:example' with 1,000 regions
writing out example TSV to example.tsv
uploading example.tsv to HDFS
WARNING: log4j.properties is not found. HADOOP_CONF_DIR may be incomplete.
WARNING: log4j.properties is not found. HADOOP_CONF_DIR may be incomplete.
Importing TSV via shaded client artifact for HBase - MapReduce integration.
Verifying row count from import.
/home/jenkins/jenkins-home/workspace/HBase_Nightly_master/component/dev-support/hbase_nightly_pseudo-distributed-test.sh: line 418: [: hbase:002:0> : integer expression expected
Hadoop client jars not given; getting them from 'hadoop classpath' for the example.
WARNING: log4j.properties is not found. HADOOP_CONF_DIR may be incomplete.
Building shaded client example.
Running shaded client example. It'll fetch the set of regions, round-trip them to a file in HDFS, then write them one-per-row into the test table.
Checking on results of example program.
WARNING: log4j.properties is not found. HADOOP_CONF_DIR may be incomplete.
Verifying row count from example.
/home/jenkins/jenkins-home/workspace/HBase_Nightly_master/component/dev-support/hbase_nightly_pseudo-distributed-test.sh: line 531: [: hbase:002:0> : integer expression expected
ERROR: Only found hbase:002:0>  rows.
Shutting down HBase