Problem connecting weblogic 5.1 to AS400 DB2 version

Question

Hi All,
I am having problem connecting from a weblogic server 5.1 version on win2000 machine to AS400 DB2 version using iToolbox jdbc driver "com.ibm.as400.access.AS400JDBCDriver".The following is the weblogic connectionpool :
weblogic.jdbc.connectionPool.DBPool=\
url=jdbc:as400://3.3.111.111/MySchema,\
driver=com.ibm.as400.access.AS400JDBCDriver,\
loginDelaySecs=10,\
initialCapacity=1,\
maxCapacity=10,\
capacityIncrement=1,\
allowShrinking=true,\
shrinkPeriodMins=15,\
refreshTestMinutes=10,\
props=user=xxx;password=xxx
weblogic.allow.reserve.weblogic.jdbc.connectionPool.DBPool=\
everyone
I am getting the following exception:
Fri Jan 28 05:38:16 EST 2005:<E> <JDBC Pool> Failed to create connection pool "DBPool"
weblogic.common.ResourceException: weblogic.common.ResourceException:
Could not create pool connection. The DBMS driver exception was:
java.lang.IllegalMonitorStateException: current thread not owner
     at com.ibm.as400.access.PortMapper.getServerSocket(PortMapper.java:150)
     at com.ibm.as400.access.AS400ImplRemote.signonConnect(AS400ImplRemote.java:1831)
     at com.ibm.as400.access.AS400ImplRemote.signon(AS400ImplRemote.java, Compiled Code)
     at com.ibm.as400.access.AS400.sendSignonRequest(AS400.java:2581)
     at com.ibm.as400.access.AS400.promptSignon(AS400.java, Compiled Code)
     at com.ibm.as400.access.AS400.signon(AS400.java:3375)
     at com.ibm.as400.access.AS400.connectService(AS400.java:821)
     at com.ibm.as400.access.AS400JDBCConnection.setProperties(AS400JDBCConnection.java:2764)
     at com.ibm.as400.access.AS400JDBCDriver.prepareConnection(AS400JDBCDriver.java:1040)
     at com.ibm.as400.access.AS400JDBCDriver.initializeConnection(AS400JDBCDriver.java, Compiled Code)
     at com.ibm.as400.access.AS400JDBCDriver.connect(AS400JDBCDriver.java:355)
     at weblogic.jdbc.common.internal.ConnectionEnvFactory.makeConnection(ConnectionEnvFactory.java:146)
     at weblogic.jdbc.common.internal.ConnectionEnvFactory.createResource(ConnectionEnvFactory.java:108)
     at weblogic.common.internal.ResourceAllocator.makeResources(ResourceAllocator.java, Compiled Code)
     at weblogic.common.internal.ResourceAllocator.<init>(ResourceAllocator.java, Compiled Code)
     at weblogic.jdbc.common.internal.ConnectionPool.startup(ConnectionPool.java:330)
     at weblogic.jdbc.common.internal.JdbcInfo.initPools(JdbcInfo.java, Compiled Code)
     at weblogic.jdbc.common.internal.JdbcInfo.startup(JdbcInfo.java:255)
     at weblogic.jdbc.common.internal.JdbcStartup.main(JdbcStartup.java:11)
     at java.lang.reflect.Method.invoke(Native Method)
     at weblogic.t3.srvr.StartupThread.runMain(StartupThread.java:219)
     at weblogic.t3.srvr.StartupThread.doWork(StartupThread.java, Compiled Code)
     at weblogic.t3.srvr.PropertyExecuteThread.run(PropertyExecuteThread.java:62)
Can anyone let me know is there any problem with connection pool configuration or do i have to make any configuration changes on DB2.Why is it throwing current thread not a owner.
Pl help.

Answer 1

Hi Joe,
Can i use jdk1.3.1 version with weblogic 5.1 version to get rid of this problem or will this change in jvm will effect my existing production applications?
-thanks
bharani
Hi Joe,
Yes the same code put into jsp scriplet is also
throwing the error
"java.lang.IllegalMonitorStateException: current
thread not owner".It would be really wonderfull if
you can get some info on the stacktrace.The version
of jdk we are using is jdk1.2.2, is the problem
anyway related with the jdk version as the standalone
program i have tested ran on jdk1.3.1 and jdk1.4
versions.
Thanking you in advance,
-bharani
bharani noudu wrote:
Hi Joe,
Thanks for the quick reply.As per your suggestion
i
am able to run a simple 15 line
standalone program with jdk versions of jdk1.3.1and jdk1.4.1 and jt400.jar in the
classpath, but i am not able to use the sameconfiguration details in the connection
pool created in weblogic or the same code pasted
in
JSP.Both are throwing the exception
that "current thread is not a owner".Is thisanything related with the web container
implementation of weblogic 5.1 or the jdk
version
of weblogic 5.1 ?
Can you please help.I am pasting the code i usedbelow for your reference.
Hi. If you can put this code in a JSP it throwsthe
"current thread" exception?
Even if there's no pool?
I would contact IBM or post to their newsgroups to
explain the stacktrace.
The Driver.connect() call just takes a URL and
properties (user and password).
There's nothing a user could do to cause such a
problem.
java.lang.IllegalMonitorStateException: current
thread not owner
at
com.ibm.as400.access.PortMapper.getServerSocket(PortMa
pper.java:150)
at
com.ibm.as400.access.AS400ImplRemote.signonConnect(AS4
00ImplRemote.java:1831)
at
com.ibm.as400.access.AS400ImplRemote.signon(AS400ImplR
emote.java, Compiled Code)
at
com.ibm.as400.access.AS400.sendSignonRequest(AS400.jav
a:2581)
at
com.ibm.as400.access.AS400.promptSignon(AS400.java,
Compiled Code)
atcom.ibm.as400.access.AS400.signon(AS400.java:3375)
at
com.ibm.as400.access.AS400.connectService(AS400.java:8
21)
at
com.ibm.as400.access.AS400JDBCConnection.setProperties
(AS400JDBCConnection.java:2764)
at
com.ibm.as400.access.AS400JDBCDriver.prepareConnection
(AS400JDBCDriver.java:1040)
at
com.ibm.as400.access.AS400JDBCDriver.initializeConnect
ion(AS400JDBCDriver.java, Compiled Code)
at
com.ibm.as400.access.AS400JDBCDriver.connect(AS400JDBC
Driver.java:355)
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class TestDb2 {
     public static void main(String[] args) {
     Connection connection = null;
     try{               
     DriverManager.registerDriver(newcom.ibm.as400.access.AS400JDBCDriver());          
          connection = DriverManager.getConnection
("jdbc:as400://1.11.111.1/MySchema","test","test");
          System.out.println("step 1");          
          Statement st = connection.createStatement();          
          System.out.println("step 2");
          ResultSet rs = st.executeQuery("SELECT * FROMMYDB.EMPLOYEE_V");
          while(rs.next()){
               System.out.println("empid "+rs.getString(1));
          }catch(Exception e){
               System.out.println("step 3"+e);
               e.printStackTrace();
          finally{
               if(connection!=null){
                    try {
                         connection.close();
                    } catch (SQLException e1) {
     e1.printStackTrace();
Thanking you in advance,
-bharani
Hi. That's a very odd internal IBM driver error.
It's
mesage is not helpful, and can't be due to
anything
you or WebLogic did. Can you get that driver wowork
on it's own, using it's own example programs? If
you can get a simple 15-line program to succeed
making
a connection, then we can get WebLogic to do the
same.
Show me that program and I'll show you the pool
definition.
Joe
bharani noudu wrote:
Hi All,
I am having problem connecting from a weblogicserver 5.1 version on win2000 machine to AS400
DB2
version using iToolbox jdbc driver
"com.ibm.as400.access.AS400JDBCDriver".Thefollowing
is the weblogic connectionpool :
weblogic.jdbc.connectionPool.DBPool=\
url=jdbc:as400://3.3.111.111/MySchema,\
driver=com.ibm.as400.access.AS400JDBCDriver,\
loginDelaySecs=10,\
initialCapacity=1,\
maxCapacity=10,\
capacityIncrement=1,\
allowShrinking=true,\
shrinkPeriodMins=15,\
refreshTestMinutes=10,\
props=user=xxx;password=xxx
weblogic.allow.reserve.weblogic.jdbc.connectionPool.
DB
Pool=\
everyone
I am getting the following exception:
Fri Jan 28 05:38:16 EST 2005:<E> <JDBC Pool>
Failed
to create connection pool "DBPool"
weblogic.common.ResourceException:weblogic.common.ResourceException:
Could not create pool connection. The DBMS
driver
exception was:
java.lang.IllegalMonitorStateException: currentthread not owner
     at
com.ibm.as400.access.PortMapper.getServerSocket(Port
Ma
pper.java:150)
     at
com.ibm.as400.access.AS400ImplRemote.signonConnect(A
S4
00ImplRemote.java:1831)
     at
com.ibm.as400.access.AS400ImplRemote.signon(AS400Imp
lR
emote.java, Compiled Code)
     at
com.ibm.as400.access.AS400.sendSignonRequest(AS400.j
av
a:2581)
     at
com.ibm.as400.access.AS400.promptSignon(AS400.java,
Compiled Code)
     at
com.ibm.as400.access.AS400.signon(AS400.java:3375)
     at
com.ibm.as400.access.AS400.connectService(AS400.java
:8
21)
     at
com.ibm.as400.access.AS400JDBCConnection.setProperti
es
(AS400JDBCConnection.java:2764)
     at
com.ibm.as400.access.AS400JDBCDriver.prepareConnecti
on
(AS400JDBCDriver.java:1040)
     at
com.ibm.as400.access.AS400JDBCDriver.initializeConne
ct
ion(AS400JDBCDriver.java, Compiled Code)
     at
com.ibm.as400.access.AS400JDBCDriver.connect(AS400JD
BC
Driver.java:355)
     at
weblogic.jdbc.common.internal.ConnectionEnvFactory.m
ak
eConnection(ConnectionEnvFactory.java:146)
     at
weblogic.jdbc.common.internal.ConnectionEnvFactory.c
re
ateResource(ConnectionEnvFactory.java:108)
     at
weblogic.common.internal.ResourceAllocator.makeResou
rc
es(ResourceAllocator.java, Compiled Code)
     at
weblogic.common.internal.ResourceAllocator.<init>(Re
so
urceAllocator.java, Compiled Code)
     at
weblogic.jdbc.common.internal.ConnectionPool.startup
(C
onnectionPool.java:330)
     at
weblogic.jdbc.common.internal.JdbcInfo.initPools(Jdb
cI
nfo.java, Compiled Code)
     at
weblogic.jdbc.common.internal.JdbcInfo.startup(JdbcI
nf
o.java:255)
     at
weblogic.jdbc.common.internal.JdbcStartup.main(JdbcS
ta
rtup.java:11)
     at java.lang.reflect.Method.invoke(Native
Method)
     at
weblogic.t3.srvr.StartupThread.runMain(StartupThread
.j
ava:219)
     at
weblogic.t3.srvr.StartupThread.doWork(StartupThread.
ja
va, Compiled Code)
     at
weblogic.t3.srvr.PropertyExecuteThread.run(PropertyE
xe
cuteThread.java:62)
Can anyone let me know is there any problem
with
connection pool configuration or do i have tomake
any configuration changes on DB2.Why is itthrowing
current thread not a owner.
Pl help.