[FLINK-12190] Fix IllegalArgumentException thrown by FlinkKinesisConsumerMigrationTest#writeSnapshot

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.9.0
• Component/s: Connectors / Kinesis, Tests
• Labels: pull-request-available
• Assignee: vinoyang
• Reporter: vinoyang
• Created: 15/Apr/19 07:21
• Updated: 26/Jun/19 03:35
• Resolved: 26/Jun/19 03:35

Description

Currently, FlinkKinesisConsumerMigrationTest#writeSnapshot throws an exception : 

java.lang.IllegalArgumentException: Cannot create enum from null value!

at com.amazonaws.regions.Regions.fromName(Regions.java:79)
at org.apache.flink.streaming.connectors.kinesis.util.AWSUtil.createKinesisClient(AWSUtil.java:93)
at org.apache.flink.streaming.connectors.kinesis.proxy.KinesisProxy.createKinesisClient(KinesisProxy.java:203)
at org.apache.flink.streaming.connectors.kinesis.proxy.KinesisProxy.<init>(KinesisProxy.java:138)
at org.apache.flink.streaming.connectors.kinesis.proxy.KinesisProxy.create(KinesisProxy.java:213)
at org.apache.flink.streaming.connectors.kinesis.internals.KinesisDataFetcher.<init>(KinesisDataFetcher.java:275)
at org.apache.flink.streaming.connectors.kinesis.internals.KinesisDataFetcher.<init>(KinesisDataFetcher.java:237)
at org.apache.flink.streaming.connectors.kinesis.FlinkKinesisConsumerMigrationTest$TestFetcher.<init>(FlinkKinesisConsumerMigrationTest.java:422)
at org.apache.flink.streaming.connectors.kinesis.FlinkKinesisConsumerMigrationTest.writeSnapshot(FlinkKinesisConsumerMigrationTest.java:332)
at org.apache.flink.streaming.connectors.kinesis.FlinkKinesisConsumerMigrationTest.writeSnapshot(FlinkKinesisConsumerMigrationTest.java:113)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

This exception may make the upgrader confused.

The exception is because the exists code did not initialize TestFetcher correctly. More details see the commits : https://issues.apache.org/jira/browse/FLINK-10785?focusedCommentId=16778899&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16778899 under FLINK-10785

Issue Links

• relates to: FLINK-10785 Update FlinkKinesisConsumerMigrationTest for 1.7
• links to: GitHub Pull Request #8174