[jira] [Issue Comment Deleted] (HBASE-17212) Should add null checker on table name in HTable constructor and RegionServerCallable

["Yu Li (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-17212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yu Li updated HBASE-17212:
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    Comment: was deleted

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| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12841224/HBASE-17212.addendum.patch |
| JIRA Issue | HBASE-17212 |
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)

> Should add null checker on table name in HTable constructor and RegionServerCallable
> ------------------------------------------------------------------------------------
>
>                 Key: HBASE-17212
>                 URL: https://issues.apache.org/jira/browse/HBASE-17212
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 2.0.0
>            Reporter: Yu Li
>            Assignee: Yu Li
>             Fix For: 2.0.0, 1.4.0
>
>         Attachments: HBASE-17212.addendum.patch, HBASE-17212.addendum.patch, HBASE-17212.patch, HBASE-17212.v2.patch
>
>
> If we run below codes:
> {code}
> Table table = connection.getTable(null);
> {code}
> we will see below exception:
> {noformat}
> java.lang.NullPointerException
> 	at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:221)
> 	at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:182)
> 	at org.apache.hadoop.hbase.client.ConnectionImplementation.getTable(ConnectionImplementation.java:298)
> 	at org.apache.hadoop.hbase.client.ConnectionImplementation.getTable(ConnectionImplementation.java:293)
> {noformat}
> And in this JIRA we will add a null checker and throw a more graceful {{IllegalArgumentException}}
> For RegionServerCallable, we're lacking of some null checker when using table name, such as in {{RegionServerCallable#prepare}}:
> {code}
>    public void prepare(final boolean reload) throws IOException {
>      // check table state if this is a retry
>     if (reload && !tableName.equals(TableName.META_TABLE_NAME) &&
>         getConnection().isTableDisabled(tableName)) {
>        throw new TableNotEnabledException(tableName.getNameAsString() + " is disabled.");
>      }
> {code}
> It will throw NPE if tableName is null and invoking {{tableName.equals}}. We'll add null checker in such places.



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