JDBC in PostgreSql for Linux

I am running a Java application on Linux which connects to the Postgresql on Linux using jdbcodbc bridge.
But this is the error I am getting :
 
sun.jdbc.odbc.JdbcOdbcDriver
java.lang.ClassNotFoundException: sun.jdbc.odbc.JdbcOdbcDriver
   at 0x4028115f: java.lang.Throwable.Throwable(java.lang.String) (/usr/lib/libgcj.so.3)
   at 0x402740d2: java.lang.Exception.Exception(java.lang.String) (/usr/lib/libgcj.so.3)
   at 0x402737a8: java.lang.ClassNotFoundException.ClassNotFoundException(java.lang.String) (/usr/lib/libgcj.so.3)
   at 0x4030b2be: java.net.URLClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.3)
   at 0x402606d7: gnu.gcj.runtime.VMClassLoader.findClass(java.lang.String) (/usr/lib/libgcj.so.3)
   at 0x40272cc7: java.lang.ClassLoader.loadClass(java.lang.String, boolean) (/usr/lib/libgcj.so.3)
   at 0x40260e09: _Jv_FindClass(_Jv_Utf8Const, java.lang.ClassLoader) (/usr/lib/libgcj.so.3)
   at 0x4025d1fd: java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib/libgcj.so.3)
   at 0x4025d2bf: java.lang.Class.forName(java.lang.String) (/usr/lib/libgcj.so.3)
   at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
   at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
   at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
   at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
   at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
   at 0x4039d1bc: ?? (??:0)
   at 0x4025b308: gnu.gcj.runtime.FirstThread.call_main() (/usr/lib/libgcj.so.3)
   at 0x402c60b1: gnu.gcj.runtime.FirstThread.run() (/usr/lib/libgcj.so.3)
   at 0x40267fdc: _Jv_ThreadRun(java.lang.Thread) (/usr/lib/libgcj.so.3)
   at 0x4023478c: _Jv_RunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib/libgcj.so.3)
   at 0x08048900: ?? (??:0)
   at 0x420158d4: ?? (??:0)
   at 0x080486c1: ?? (??:0)
 
I have also tried running a Java application using the Native JDBC Driver.
I get the following error :
Driver not found for URL: jdbc:postgresql@10.100.102.31:5432:notes
java.sql.SQLException: Driver not found for URL: jdbc:postgresql@10.100.102.31:5432:notes
   at 0x4028115f: java.lang.Throwable.Throwable(java.lang.String) (/usr/lib/libgcj.so.3)
   at 0x402740d2: java.lang.Exception.Exception(java.lang.String) (/usr/lib/libgcj.so.3)
   at 0x40316294: java.sql.SQLException.SQLException(java.lang.String, java.lang.String, int) (/usr/lib/libgcj.so.3)
   at 0x40316244: java.sql.SQLException.SQLException(java.lang.String) (/usr/lib/libgcj.so.3)
   at 0x40316102: java.sql.DriverManager.getConnection(java.lang.String, java.util.Properties) (/usr/lib/libgcj.so.3)
   at 0x4031603a: java.sql.DriverManager.getConnection(java.lang.String, java.lang.String, java.lang.String)
(/usr/lib/libgcj.so.3)
   at 0x4039d347: ffi_call_SYSV (/usr/lib/libgcj.so.3)
   at 0x4039d307: ffi_raw_call (/usr/lib/libgcj.so.3)
   at 0x40248528: _Jv_InterpMethod.continue1(_Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
   at 0x40248e34: _Jv_InterpMethod.run(ffi_cif, void, ffi_raw, _Jv_InterpMethodInvocation) (/usr/lib/libgcj.so.3)
   at 0x40246424: _Jv_InterpMethod.run_normal(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.3)
   at 0x4039d1bc: ?? (??:0)
   at 0x4025b308: gnu.gcj.runtime.FirstThread.call_main() (/usr/lib/libgcj.so.3)
   at 0x402c60b1: gnu.gcj.runtime.FirstThread.run() (/usr/lib/libgcj.so.3)
   at 0x40267fdc: _Jv_ThreadRun(java.lang.Thread) (/usr/lib/libgcj.so.3)
   at 0x4023478c: _Jv_RunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib/libgcj.so.3)
   at 0x08048900: ?? (??:0)
   at 0x420158d4: ?? (??:0)
   at 0x080486c1: ?? (??:0)
 
Please do reply me asap.
 
Thanks and Regards,
Kallol Nandi,
Systems Analyst,
Indus Software - A Division of R Systems International Ltd.,
Tidel Park, Taramani, Chennai-600113, India.
Phone: +91-44-22540014/6 Extn: 209
Fax: +91-44-22540017
Email: Kallol.Nandi@indussoft.com <http://uk.f200.mail.yahoo.com/ym/Compose?To=Kallol.Nandi@indussoft.com> 
Visit us @ http://www.indussoft.com/ 

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