error when trying to connect to an external application via the Socket - attach option when using jdb in jdee

Hi Could anyone throw some light on why I get this error when trying to trying to connect to an external application via the Socket - attach option when using jdb in jdee. c:/Main/build-tools/j2sdk1.4.1_01/bin/jdb.exe -attach localhost:3999 java.io.IOException: shmemBase_attach

error when trying to connect to an external application via the Socket - attach option when using jdb in jdee

Philip Varghese writes: Hi Could anyone throw some light on why I get this error when trying to trying to connect to an external application via the Socket - attach option when using jdb in jdee. c:/Main/build-tools/j2sdk1.4.1_01/bin/jdb.exe -attach localhost:3999