Null Pointer Exception using JDBC-ODBC bridge on Linux

Question

Wonder if anyone can help me with this one?
I am attempting to use the JDBC-ODBC bridge on Fedora with J2SDK 1.4.2_04, however I am getting a NullPointerException whenever I get the connection. I can get the JDBC connection to work but it is a requirement that ODBC be used.
The code is as simple as it can get.
import java.sql.*;
public class TestClass
   public static void doConnection()
      try
           Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
           Connection cn = DriverManager.getConnection("jdbc:odbc:DB");
      catch (Exception e)
           e.printStackTrace();
   public static void main(String[] args)
      doConnection();
}Running this program using java -verbose TestClass I get the following output.
[Loaded sun.jdbc.odbc.JdbcOdbc from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
[Loaded java.lang.UnsatisfiedLinkError from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
[Loaded java.sql.SQLException from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
[Loaded java.sql.SQLWarning from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
java.lang.NullPointerException
[Loaded java.lang.StackTraceElement from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
at sun.jdbc.odbc.JdbcOdbcDriver.initialize(JdbcOdbcDriver.java:436)
at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:153)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:193)
at TestClass.doConnection(TestClass.java:13)
at TestClass.main(TestClass.java:96)
[Loaded java.lang.Shutdown from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
[Loaded java.lang.Shutdown$Lock from /usr/java/j2sdk1.4.2_04/jre/lib/rt.jar]
The UnsatisfiedLinkError suggests to me that a library cannot be found, but I don't know what library.
As far as I know I have configured ODBC correctly. I can achieve connectivity to my database using other tools and I still get this same error irrespective of whether the DSN is valid or not.
I have installed the unixODBC rpm.
Any help/insite would be greatly appreciated.

Answer 1

This is the output of ldd. Everything appears to be resolved.
linux-gate.so.1 => (0x00cf5000)
libodbcinst.so => /usr/sybase/lib/libodbcinst.so (0x001d5000)
libjava.so => libjava.so (0x008af000)
libjvm.so => /usr/java/j2sdk1.4.2_04/jre/lib/i386/client/libjvm.so (0x002a7000)
libc.so.6 => /lib/i686/libc.so.6 (0x00d77000)
libdbtasks7.so => /usr/sybase/lib/libdbtasks7.so (0x00eb2000)
libdl.so.2 => /lib/libdl.so.2 (0x00111000)
libstdc++-libc6.2-2.so.3 => /usr/lib/libstdc++-libc6.2-2.so.3 (0x00115000)
libm.so.6 => /lib/i686/libm.so.6 (0x008fb000)
libverify.so => libverify.so (0x0016e000)
libnsl.so.1 => /lib/libnsl.so.1 (0x00180000)
libpthread.so.0 => /lib/i686/libpthread.so.0 (0x006d0000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x00157000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00b75000)
The ODBC is a Sybase driver and is loaded from elsewhere. I will check for any known compatibility issues.