|
Problem IC65851
|
Status: Closed |
RECEIVE JAVA.LANG.NULLPOINTEREXCEPTION WHEN ACCESSING VALUE OF CURSOR TYPED OUTPUT PARAMETER RETURNED BY A SQL CALL STATEMENT |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
You receive a java.lang.NullPointer exception from
com.ibm.db2.jcc.am.vm.getObject when attempting to get the value
of a cursor typed output parameter returned by an SQL Call
statement, and literal values were used for at least one input
parameter.
Example Create Procedure DDL:
CREATE PROCEDURE P1(IN V1 INTEGER, OUT CV1 CURSOR)
BEGIN
SET CV1 = CURSOR FOR VALUES(V1);
END
Example Java Code:
The example assumes that the conn variable represents an
instance of the Connection class with an open connection to a
database where the procedure P1 has been defined.
CallableStatement cstmt = conn.prepareCall("CALL P1(42, ?");
cstmt.registerOutParameter(1, com.ibm.db2.jcc.DB2Types.CURSOR);
cstmt.execute();
ResultSet rs = (ResultSet)cstmt.getObject(1); <-- Throws
java.lang.NullPointerException
Exception Call Stack:
java.lang.NullPointerException
at com.ibm.db2.jcc.am.gc.a(gc.java:1822)
at com.ibm.db2.jcc.am.vm.A(vm.java:1039)
at com.ibm.db2.jcc.am.vm.getObject(vm.java:1017) |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Java applications using JCC Type 4 Driver against DB2 forLUW *
* 9.7 server. *
****************************************************************
* PROBLEM DESCRIPTION: *
* You receive a java.lang.NullPointer exception *
* fromcom.ibm.db2.jcc.am.vm.getObject when attempting to get *
* thevalue of a cursor typed output parameter returned by an *
* SQLCall statement and literal values were used for at least *
* oneinput parameter.Example Create Procedure DDL:CREATE *
* PROCEDURE P1(IN V1 INTEGER, OUT CV1 CURSOR)BEGINSET CV1 = *
* CURSOR FOR VALUES(V1);ENDExample Java Code:The example *
* assumes that the conn variable represents aninstance of the *
* Connection class with an open connection toa database where *
* the procedure P1 has been defined.CallableStatement cstmt = *
* conn.prepareCall("CALL P1(42, *
* ?");cstmt.registerOutParameter(1,com.ibm.db2.jcc.DB2Types.CURS
* rs = (ResultSet)cstmt.getObject(1); <-- *
* Throwsjava.lang.NullPointerExceptionException Call *
* Stack:java.lang.NullPointerExceptionat *
* com.ibm.db2.jcc.am.gc.a(gc.java:1822)at *
* com.ibm.db2.jcc.am.vm.A(vm.java:1039)at *
* com.ibm.db2.jcc.am.vm.getObject(vm.java:1017) *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 for LUW version 9.7 Fix Pack 2. *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
DB2 Version 9.7 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
Problem was first fixed in Version 9.7 Fix Pack 2. This fix
should be applied on the server.
You will no longer receive a java.lang.NullPointer exception
from com.ibm.db2.jcc.am.vm.getObject when retrieving the value
of a Cursor typed output parameter from an SQL Call statement. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 26.01.2010
05.07.2010
05.07.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP2
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.2
|
 |
