[ 
https://issues.apache.org/jira/browse/DRILL-4128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Devender Yadav  updated DRILL-4128:
-----------------------------------
    Description: 
Below mentioned method is throwing null pointer becaue getObject(rowOffset) 
returns null for null values & null.toString() is throwing null pointer.

java.lang.NullPointerException
at 
org.apache.drill.exec.vector.accessor.AbstractSqlAccessor.getString(AbstractSqlAccessor.java:101)
at 
org.apache.drill.exec.vector.accessor.BoundCheckingAccessor.getString(BoundCheckingAccessor.java:124)
at 
org.apache.drill.jdbc.impl.TypeConvertingSqlAccessor.getString(TypeConvertingSqlAccessor.java:649)
at 
org.apache.drill.jdbc.impl.AvaticaDrillSqlAccessor.getString(AvaticaDrillSqlAccessor.java:95)
at net.hydromatic.avatica.AvaticaResultSet.getString(AvaticaResultSet.java:205)
at 
org.apache.drill.jdbc.impl.DrillResultSetImpl.getString(DrillResultSetImpl.java:182)

 @Override
  public String getString(int rowOffset) throws InvalidAccessException{
    return getObject(rowOffset).toString();
  }

It should be like:

 @Override
  public String getString(int rowOffset) throws InvalidAccessException{
    return getObject(rowOffset)==null? null:getObject(rowOffset).toString();
  }

  was:
Below mentioned method is throwing null pointer becaue getObject(rowOffset) 
returns null for null values & null.toString() is throwing null pointer.

 @Override
  public String getString(int rowOffset) throws InvalidAccessException{
    return getObject(rowOffset).toString();
  }

It should be like:

 @Override
  public String getString(int rowOffset) throws InvalidAccessException{
    return getObject(rowOffset)==null? null:getObject(rowOffset).toString();
  }


> null pointer at 
> org.apache.drill.exec.vector.accessor.AbstractSqlAccessor.getString(AbstractSqlAccessor.java:101)
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: DRILL-4128
>                 URL: https://issues.apache.org/jira/browse/DRILL-4128
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Client - JDBC
>    Affects Versions: 1.0.0, 1.1.0, 1.2.0, 1.3.0
>            Reporter: Devender Yadav 
>            Priority: Blocker
>             Fix For: Future
>
>
> Below mentioned method is throwing null pointer becaue getObject(rowOffset) 
> returns null for null values & null.toString() is throwing null pointer.
> java.lang.NullPointerException
> at 
> org.apache.drill.exec.vector.accessor.AbstractSqlAccessor.getString(AbstractSqlAccessor.java:101)
> at 
> org.apache.drill.exec.vector.accessor.BoundCheckingAccessor.getString(BoundCheckingAccessor.java:124)
> at 
> org.apache.drill.jdbc.impl.TypeConvertingSqlAccessor.getString(TypeConvertingSqlAccessor.java:649)
> at 
> org.apache.drill.jdbc.impl.AvaticaDrillSqlAccessor.getString(AvaticaDrillSqlAccessor.java:95)
> at 
> net.hydromatic.avatica.AvaticaResultSet.getString(AvaticaResultSet.java:205)
> at 
> org.apache.drill.jdbc.impl.DrillResultSetImpl.getString(DrillResultSetImpl.java:182)
>  @Override
>   public String getString(int rowOffset) throws InvalidAccessException{
>     return getObject(rowOffset).toString();
>   }
> It should be like:
>  @Override
>   public String getString(int rowOffset) throws InvalidAccessException{
>     return getObject(rowOffset)==null? null:getObject(rowOffset).toString();
>   }



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