DB2JDBCException: internal driver error

Hi,

We have a Java program run on AS/400 using DB2 JDBC native driver to access
data on AS/400.  The program have been run successfully in production for
more than two years.  But once a while, we received the following errors:

SQL error: Internal driver error.
com.ibm.db2.jdbc.app.DB2JDBCException: Internal driver error.
      java/lang/Throwable.<init>(Ljava/lang/String;)V+4 (Throwable.java:90)
      java/lang/Exception.<init>(Ljava/lang/String;)V+1 (Exception.java:38)
      java/sql/SQLException.<init>(Ljava/lang/String;Ljava/lang/String;I)V+1
(SQLException.java:39)
 
com/ibm/db2/jdbc/app/DB2Exception.<init>(Ljava/lang/String;Ljava/lang/String
;I)V+1 (DB2Exception.java:49)
      com/ibm/db2/jdbc/app/DB2ResultSet.handleFetch(II)Z+117
(DB2ResultSet.java:1603)
 
com/ibm/db2/jdbc/app/DB2ResultSet.commonSetup(Lcom/ibm/db2/jdbc/app/DB2State
ment;ZZZ)V+515 (DB2ResultSet.java:444)
      com/ibm/db2/jdbc/app/DB2Statement.setupResultSet(Z)V+93
(DB2Statement.java:441)
 
com/ibm/db2/jdbc/app/DB2Statement.commonExecDirect(Ljava/lang/String;)Z+166
(DB2Statement.java:800)
 
com/ibm/db2/jdbc/app/DB2Statement.executeQuery(Ljava/lang/String;)Ljava/sql/
ResultSet;+31 (DB2Statement.java:688)
 
Account.processAccountTrans(Ljava/sql/Connection;IILjava/lang/String;Ljava/u
til/Hashtable;)V+1302 (Account.java:1491)
 
AgentComp.batchSequence(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Strin
g;Ljava/lang/String;IIII)V+1414 (AgentComp.java:37
      AgentComp.main([Ljava/lang/String;)V+205 (AgentComp.java:60)

The errors seem randomly occurred at the different sections of the program.
When the error occurs, if we run the same program again, most likely the
error will go away. We have been trying to debug/catch the error, but since
it always randomly occur, we have not able to identify the error source yet.


Does anyone have the similar experience?  Any suggestions?  Thanks.

Weining (Wayne) Xu