Error while installing the java add-on on abap system

Question

Dear All,
We are trying to install java add-on with EP on present ABAP system, but getting struck up with error as below at creating java users (sapjsf) in central instance installation phase.
ENVIRONMENT:
ECC6.0
WIN 2003
KERNEL 136
SUPPORT PACK LEVEL AT 13
NETWEAVER 2004S SR1.
DB- ORACLE
error: ( usercheck.log)
java.lang.NoClassDefFoundError: com/sun/tools/javac/Main
Exception in thread "main" Reserved 1610612736 (0x60000000) bytes before loading DLLs.
Critical Error
Launching program failed
-> Internal program error (rc = -1)
error: (sapinst.log)
WARNING 2008-08-11 15:00:00
Execution of the command "C:\usr\sap\B60\DVEBMGS00\exe\jlaunch.exe UserCheck.jlaunch com.sap.security.tools.UserCheck "C:\Program Files\sapinst_instdir\ERP\LM\AS-JAVA\ADDIN\ORA\CENTRAL\CI\install\lib;C:\Program Files\sapinst_instdir\ERP\LM\AS-JAVA\ADDIN\ORA\CENTRAL\CI\install\sharedlib;C:\Program Files\sapinst_instdir\ERP\LM\AS-JAVA\ADDIN\ORA\CENTRAL\CI\install" -c sysnr=00 -c ashost=sapserver -c client=001 -c user=DDIC -c XXXXXX -a checkCreate -u SAPJSF -p XXXXXX -r SAP_BC_JSF_COMMUNICATION_RO -message_file UserCheck.message" finished with return code -1. Output:
java.lang.NoClassDefFoundError: com/sun/tools/javac/Main
Exception in thread "main" Reserved 1610612736 (0x60000000) bytes before loading DLLs.
Critical Error
Launching program failed
-> Internal program error (rc = -1)
INFO 2008-08-11 15:00:00
Removing file C:\Program Files\sapinst_instdir\ERP\LM\AS-JAVA\ADDIN\ORA\CENTRAL\CI\dev_UserCheck.
ERROR 2008-08-11 15:00:00
CJS-30197  . For more details see output of logfile:
ERROR 2008-08-11 15:00:00
FCO-00011  The step createJSF with step key |NW_Addin_CI|ind|ind|ind|ind|0|0|NW_CI_Instance|ind|ind|ind|ind|8|0|NW_CI_Instance_Doublestack|ind|ind|ind|ind|2|0|createJSF was executed with status ERROR .
Please help us out at your earliest convenience.
Thanks and warm regards,

Answer 1

Dear Samrat Dangeti ,
Thanks.
Inst version:   701.
JDK version:  1.4.2_13
Regards,