[FLINK-3590] JDBC Format tests don't hide derby logs

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.0.0
• Fix Version/s: 1.1.0
• Component/s: API / DataSet, Tests
• Assignee: Chesnay Schepler
• Reporter: Chesnay Schepler
• Created: 08/Mar/16 14:01
• Updated: 16/Jun/16 17:04
• Resolved: 13/Mar/16 16:25

Description

The batch jdbc IO-format tests print the derby log, due to some refactoring going wrong.

 T E S T S
-------------------------------------------------------
Running org.apache.flink.api.java.io.jdbc.JDBCInputFormatTest
Tue Mar 08 12:17:03 UTC 2016 Thread[main,5,main] java.lang.ClassNotFoundException: org.apache.flink.api.java.record.io.jdbc.DevNullLogStream
----------------------------------------------------------------
Tue Mar 08 12:17:03 UTC 2016:
Booting Derby version The Apache Software Foundation - Apache Derby - 10.10.1.1 - (1458268): instance a816c00e-0153-5628-ba57-00000d988ed0 
on database directory memory:/home/travis/build/zentol/flink/flink-batch-connectors/flink-jdbc/ebookshop with class loader sun.misc.Launcher$AppClassLoader@788bf135 
Loaded from file:/home/travis/.m2/repository/org/apache/derby/derby/10.10.1.1/derby-10.10.1.1.jar
java.vendor=Oracle Corporation
java.runtime.version=1.7.0_76-b13
user.dir=/home/travis/build/zentol/flink/flink-batch-connectors/flink-jdbc
os.name=Linux
os.arch=amd64
os.version=3.13.0-40-generic
derby.system.home=null
derby.stream.error.field=org.apache.flink.api.java.record.io.jdbc.DevNullLogStream.DEV_NULL
Database Class Loader started - derby.database.classpath=''

We should hide these logs again.