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From "sunyerui (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-13873) LoadTestTool addAuthInfoToConf throws UnsupportedOperationException
Date Tue, 09 Jun 2015 14:48:00 GMT
sunyerui created HBASE-13873:
--------------------------------

             Summary: LoadTestTool addAuthInfoToConf throws UnsupportedOperationException
                 Key: HBASE-13873
                 URL: https://issues.apache.org/jira/browse/HBASE-13873
             Project: HBase
          Issue Type: Bug
          Components: integration tests
    Affects Versions: 0.98.13
            Reporter: sunyerui
             Fix For: 0.98.14


When run IntegrationTestIngestWithACL on distributed clusters with kerberos security enabled,
the method addAuthInfoToConf() in LoadTestTool will be invoked and throws UnsupportedOperationException,
stack as follows:
{panel}
2015-06-09 22:15:33,605 ERROR \[main\] util.AbstractHBaseTool: Error running command-line
tool
java.lang.UnsupportedOperationException
        at java.util.AbstractList.add(AbstractList.java:148)
        at java.util.AbstractList.add(AbstractList.java:108)
        at org.apache.hadoop.hbase.util.LoadTestTool.addAuthInfoToConf(LoadTestTool.java:811)
        at org.apache.hadoop.hbase.util.LoadTestTool.loadTable(LoadTestTool.java:516)
        at org.apache.hadoop.hbase.util.LoadTestTool.doWork(LoadTestTool.java:479)
        at org.apache.hadoop.hbase.util.AbstractHBaseTool.run(AbstractHBaseTool.java:112)
        at org.apache.hadoop.hbase.IntegrationTestIngest.runIngestTest(IntegrationTestIngest.java:151)
        at org.apache.hadoop.hbase.IntegrationTestIngest.internalRunIngestTest(IntegrationTestIngest.java:114)
        at org.apache.hadoop.hbase.IntegrationTestIngest.runTestFromCommandLine(IntegrationTestIngest.java:97)
        at org.apache.hadoop.hbase.IntegrationTestBase.doWork(IntegrationTestBase.java:115)
        at org.apache.hadoop.hbase.util.AbstractHBaseTool.run(AbstractHBaseTool.java:112)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
        at org.apache.hadoop.hbase.IntegrationTestIngestWithACL.main(IntegrationTestIngestWithACL.java:136)
{panel}

The corresponding code is below and the reason is obvious. Arrays.asList return a java.util.Arrays$ArrayList
but not java.util.ArrayList. Both of them are inherited from java.util.AbstractList, but the
former didn't override the method add(), so the parent method java.util.AbstractList.add()
will be invoked and the exception threw.
{code}
private void addAuthInfoToConf(Properties authConfig, Configuration conf, String owner,
      String userList) throws IOException {
    List<String> users = Arrays.asList(userList.split(","));
    users.add(owner);
    ...
  }
{code}

Does anyone occurred on this? I think it's an obvious bug but no one report it, so please
tell me if I misunderstanding it. If it's actually a bug here, then it can be fixed very easy
as below:
{code}
 List<String> users = new ArraList<String>(Arrays.asList(userList.split(",")));
{code}



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