Обсуждение: java.lang.NullPointerException - at org.postgresql.Connection.ExecSQL(Connection.java:312)

>>>>>Hi!
>>>>>
>>>>>We are experiencing problems on a live application and are getting int=
ermittent errors. The stack trace is as follows. As the system is live, thi=
s is urgent.
>>>>>
>>>>>java.lang.NullPointerException
>>>>>      at org.postgresql.Connection.ExecSQL(Connection.java:312)
>>>>>      at org.postgresql.jdbc2.Connection.setAutoCommit(Connection.java=
:141)
>>>>>      at org.enhydra.jdbc.standard.StandardXADataSource.getFreeConnect=
ion(StandardXADataSource.java:392)
>>>>>      at org.enhydra.jdbc.standard.StandardXAConnection.getConnection(=
StandardXAConnection.java:124)
>>>>>      at org.enhydra.jdbc.pool.StandardPoolDataSource.getConnection(St=
andardPoolDataSource.java:186)
>>>>>      at org.enhydra.jdbc.pool.StandardPoolDataSource.getConnection(St=
andardPoolDataSource.java:152)
>>>>>      at com.mphasis.give.common.utilities.DatabaseUtil.getConnection(=
DatabaseUtil.java:46)
>>>>>      at com.mphasis.give.payment.CartDAO.addToCart(CartDAO.java:161)>=
>>>>

>>>>>We are using JOTM..............

Any help would be appreciated.

Regards,
Dhaval

On Mon, 8 Dec 2003, Dhaval Bhagat wrote:

> >>>>>Hi!
> >>>>>
> >>>>>We are experiencing problems on a live application and are getting intermittent errors. The stack trace is as
follows.As the system is live, this is urgent. 
> >>>>>
> >>>>>java.lang.NullPointerException
> >>>>>      at org.postgresql.Connection.ExecSQL(Connection.java:312)
> >>>>>      at org.postgresql.jdbc2.Connection.setAutoCommit(Connection.java:141)
> >>>>>      at org.enhydra.jdbc.standard.StandardXADataSource.getFreeConnection(StandardXADataSource.java:392)
> >>>>>      at org.enhydra.jdbc.standard.StandardXAConnection.getConnection(StandardXAConnection.java:124)
> >>>>>      at org.enhydra.jdbc.pool.StandardPoolDataSource.getConnection(StandardPoolDataSource.java:186)
> >>>>>      at org.enhydra.jdbc.pool.StandardPoolDataSource.getConnection(StandardPoolDataSource.java:152)
> >>>>>      at com.mphasis.give.common.utilities.DatabaseUtil.getConnection(DatabaseUtil.java:46)
> >>>>>      at com.mphasis.give.payment.CartDAO.addToCart(CartDAO.java:161)>>>>>
>
> >>>>>We are using JOTM..............
>

You have not indicated what version of the JDBC driver you are using, but
the fact that it has org.postgresql.Connection indicates that it is from
the 7.2 series at the newest.  Try upgrading to a newer version from
http://jdbc.postgresql.org/download.html

Kris Jurka