jdk버전확인

아래처럼 JDK버전은 1.5.0.12버전은로 패스가 잡혀있습니다.

그런데 실제로 버전을 확인해보면 1.4.2 버전으로 보입니다.

이건 왜그런건가요?

[root@localhost ~]# echo $PATH
/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/java/jdk1.5.0_12/bin:/home/apache-ant-1.7.1/bin:/usr/X11R6/bin:/root/bin
[root@localhost ~]# java -version
java version "1.4.2"
gcj (GCC) 3.4.6 20060404 (Red Hat 3.4.6-8)
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.