Unable to start TeamCity agent on Redhat-Linux

Hi,

I installed the latest version of TeamCity (6.0) on a Linux box and tried to start the server and agent but agen fails to start with the following error:

./buildAgent/bin/agent.sh start
Starting TeamCity build agent...
Warning: -ea not understood. Ignoring.
Exception in thread "main" java.lang.VerifyError: verification failed at PC 0 in jetbrains.buildServer.agent.Check:main(([Ljava.lang.String;)V): String, int, or float constant expected
   at _Jv_BytecodeVerifier.verify_fail(byte, int) (/usr/lib64/libgcj.so.5.0.0)
   at _Jv_BytecodeVerifier.verify_instructions_0() (/usr/lib64/libgcj.so.5.0.0)
   at _Jv_VerifyMethod(_Jv_InterpMethod) (/usr/lib64/libgcj.so.5.0.0)
   at _Jv_PrepareClass(java.lang.Class) (/usr/lib64/libgcj.so.5.0.0)
   at _Jv_WaitForState(java.lang.Class, int) (/usr/lib64/libgcj.so.5.0.0)
   at java.lang.VMClassLoader.linkClass0(java.lang.Class) (/usr/lib64/libgcj.so.5.0.0)
   at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib64/libgcj.so.5.0.0)
   at java.lang.Class.initializeClass() (/usr/lib64/libgcj.so.5.0.0)
   at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib64/libgcj.so.5.0.0)
   at gnu.gcj.runtime.FirstThread.run() (/usr/lib64/libgcj.so.5.0.0)
   at _Jv_ThreadRun(java.lang.Thread) (/usr/lib64/libgcj.so.5.0.0)
   at _Jv_RunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib64/libgcj.so.5.0.0)
   at __gcj_personality_v0 (/net/eldorado/120gb2/ansoft/TeamCity_New/buildAgent/bin/java.version=1.4.2)
   at __libc_start_main (/lib64/tls/libc-2.3.4.so)
   at _Jv_RegisterClasses (/net/eldorado/120gb2/ansoft/TeamCity_New/buildAgent/bin/java.version=1.4.2)

Machine details:

Linux testmachine 2.6.9-78.ELsmp #1 SMP Wed Jul 9 15:46:26 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux
Red Hat Enterprise Linux WS release 4 (Nahant Update 7)
Java: jdk1.6.0_07

Thanks
Saran